Free tools for operators. No signup.

business · generatornew

Quote Generator

Build a priced quote with line items, tax, discount, and notes. Export as a DH-branded PDF. Presets for agency, consultant, and service work.

line items branded PDF validity window

ecommerce · calculatorpopular

Profit Calculator

Enter revenue, COGS, shipping, fees, ads, and fixed costs. Get gross margin %, contribution margin, profit, and a 12-month projection — the truth about unit economics.

margin % contribution 12-mo projection

business · generatornew

SOW Generator

Multi-page statement of work with scope, deliverables, acceptance criteria, and milestones. Branded PDF. Consulting, software, and creative presets.

5-page PDF acceptance milestones

5 styles 50 names 9 industries

brand · generatornew

Business Name Generator

Fifty candidate brand names across five naming styles: abstract, evocative, compound, founder, and descriptive. Industry-tuned word lists.

score 0–100 SERP pixels 4 contexts

content · checkernew

Headline Analyzer

Score any blog title, meta title, or ad headline 0–100 on length, power words, emotion, format fit, and SERP-pixel width.

all 315 tools

AIGeneratorsFor marketers

AI Prompt Studio

Build pro prompts for images, video & business copy — paste into Midjourney, Sora, ChatGPT.

GeneratorsBatch processing

Avatar Generator

Make initials avatars & identicons from any name or text — export PNG/SVG.

Barcode Generator

Generate Code 128 & EAN-13 barcodes and download as PNG or SVG.

Bingo Card Generator

Make custom bingo cards from your own word list — multiple unique cards, print-ready.

GeneratorsFor students

GeneratorsBatch processingFor marketers

Bulk QR Generator

Generate hundreds of QR codes from a list or CSV — labeled and downloadable as a ZIP.

GeneratorsFor businessFor students

Certificate Generator

Create printable certificates — templates, recipient names, dates & signatures, PNG/PDF export.

Color Converter

Convert colors between HEX, RGB, HSL, HSV & CMYK with a live swatch.

ConvertersFor designers

Color Palette Generator

Generate harmonious color palettes — lock, tweak, copy & export CSS. Spacebar to reroll.

GeneratorsFor designers

CSS Generator

Box-shadow, gradient, radius & glassmorphism CSS with live preview.

GeneratorsFor designers

Digital Business Card

Generate a vCard QR people can scan to save your contact.

GeneratorsFor businessFor marketers

Email Signature Maker

Design an HTML email signature with live preview — paste into Gmail/Outlook.

Emoji Picker

Search 1,800+ emoji by name or category and copy instantly — with recents.

Mock Data Generator

Generate realistic fake names, emails & rows — export CSV/JSON.

GeneratorsFor developers

GeneratorsPrivacy & security

Password Generator

Strong, random passwords & passphrases with a strength meter.

Password Strength Tester

Check how strong a password is — entropy, crack-time estimate & tips. Never sent anywhere.

GeneratorsFor businessFor marketers

Privacy Policy Generator

Generate a privacy policy & terms template for your website or app — answer a few questions, export HTML/Markdown.

QR Code Generator

Make QR codes for links, text, Wi-Fi & more — custom colors + logo.

GeneratorsFor marketers

QR Code Scanner

Scan QR codes with your camera or from an image — decoded locally.

Signature Generator

Draw or type your signature and download a transparent PNG — for documents & email.

GeneratorsFor business

Test Card Number Generator

Generate Luhn-valid test card numbers, CVV & expiry for QA/testing — not real cards.

Avatar / Circle Cropper

Crop any photo to a perfect circle or square avatar and export PNG.

Background Remover

Erase image backgrounds automatically with on-device AI — free (one-time engine download).

Bulk Watermark

Stamp text or a logo across many images at once.

Collage Maker

Combine photos into a clean grid collage with spacing — export PNG.

Color Blindness Simulator

See how an image looks with protanopia, deuteranopia, tritanopia & more.

Design Studio

Canva-style design tool — social-size presets, templates, text, shapes & snap guides. Design & export in your browser.

EXIF Viewer & Remover

See and strip hidden photo metadata (GPS, camera, date) — privately.

GeneratorsBatch processingFor designers

Favicon Generator

Turn any image into a full favicon & app-icon pack (.zip).

ConvertersBatch processing

HEIC to JPG Converter

Convert iPhone HEIC/HEIF photos to JPG or PNG — batch, private, no upload.

Image Annotator

Mark up screenshots with arrows, boxes, text, blur & numbered steps — export PNG.

Image Color Picker

Pick colors and extract a palette from any image.

Image Compare Slider

Before/after slider to compare two images side by side — export the comparison.

Image Compressor

Shrink JPG, PNG & WebP with a live quality slider — no upload.

ConvertersBatch processing

Image Converter

Convert between PNG, JPG, WebP & more, right in the browser.

Image Cropper

Crop, rotate & flip with aspect-ratio presets.

Image Redactor

Blur, pixelate or black-out sensitive parts of an image before sharing — locally.

Image Resizer

Resize by pixels, percent or presets — single or batch.

Image Splitter / Grid

Slice an image into an N×N grid (Instagram grid, tiles) — download as a ZIP.

Image to ASCII Art

Turn any image into ASCII art — copy as text or export as PNG.

Image to Base64

Convert images to Base64 data URIs (with HTML/CSS/Markdown) and back — locally.

Image to Text (OCR)

Extract text from images & screenshots in your browser (one-time engine download).

Image Upscaler

Enlarge images 2×–4× with high-quality resampling & smart sharpening — fully on-device.

Meme Generator

Add classic top/bottom captions to any image and export.

Passport Photo Maker

Crop photos to passport & visa sizes (2×2", 35×45mm & more) with guides — print-ready sheets.

ConvertersFor students

Photo Border & Frame

Add borders, padding, rounded corners & polaroid frames to photos — export PNG.

Photo Editor

A full layer-based photo editor — layers, blend modes, filters, brushes, text & transforms. Like Photoshop, in your browser.

Photo Filters

Apply filters & adjustments (B&W, vintage, contrast…) and download.

Pixel Art Maker

Draw pixel art on a grid — palettes, mirror mode, fill & export PNG at any scale.

Placeholder Image

Generate sized placeholder images with custom color & label — PNG or SVG.

GeneratorsFor developers

Screenshot Beautifier

Drop a screenshot onto a gradient backdrop with padding, rounded corners & shadow — export PNG.

SVG → PNG

Rasterize SVG to crisp PNG at any scale, right in your browser.

GeneratorsConvertersFor students

Text to Handwriting

Convert typed text into realistic handwritten pages — paper styles, ink colors, PNG & PDF export.

Word Cloud Generator

Turn text into a word-frequency cloud and export PNG/SVG — runs in your browser.

GeneratorsFor designers

Audio Trimmer & Editor

Import or record audio, trim, fade & adjust volume on a waveform — export WAV.

GIF Maker

Turn a set of images into an animated GIF — set delay, loop & size, export locally.

Guitar Tuner

Tune guitar, ukulele & bass with live microphone pitch detection — standard & custom tunings.

Metronome

A precise metronome with tap tempo, time signatures, accents & subdivisions.

Mic & Webcam Test

Test your microphone, webcam & speakers before calls — levels, preview & devices.

Screen Recorder

Record your screen (and mic) to a video file — locally.

AIRecord mic / camera / screen

Speech to Text

Dictate and get live transcription in your browser — many languages, copy & download.

Editors & studiosConverters

Subtitle Editor (SRT/VTT)

Edit subtitles, shift & stretch timestamps, fix sync and convert SRT ↔ VTT — locally.

Text to Speech

Turn text into speech with your system voices.

Video Compressor

Shrink video file size with quality & resolution presets — in your browser (one-time engine download).

Editors & studiosRecord mic / camera / screen

Video Editor & Screen Recorder

Camtasia-style studio — record your screen, webcam & voiceover, edit on a multi-track timeline with callouts, and export. No upload.

Video to MP3 / Audio

Extract MP3/WAV audio from a video, or convert audio formats — in your browser (one-time engine download).

Video Trim & GIF

Trim a video or turn it into a GIF — in your browser (one-time engine download).

Voice Recorder

Record audio from your mic and download it.

Webcam Photo Booth

Snap photos from your webcam with filters, countdown & mirror — download locally.

White Noise & Ambience

White, pink & brown noise plus rain and fan ambiences with a sleep timer — generated locally.

YouTube Thumbnail Downloader

Grab any YouTube video’s thumbnail in every resolution — just paste the link.

PDF

Compress PDF

Shrink PDF file size by recompressing pages & images — locally, no upload.

PDF

Extract Images from PDF

Pull all embedded images out of a PDF and download them (ZIP) — locally.

PDF

Images → PDF

Turn photos & scans into a single PDF.

ConvertersBatch processing

PDF

PDF → Images

Render PDF pages to PNG/JPG at any resolution.

Editors & studiosFor business

PDF

PDF Editor

Sejda-style PDF editor — click existing text to edit it (size & font matched), add text, images, shapes, whiteout & signatures. No…

PDF

PDF Merge

Combine PDFs and reorder pages by drag — locally.

PDF

PDF Sign

Draw or type a signature and place it on any page.

For business

PDF

PDF Split & Organize

Extract, delete, rotate & reorder PDF pages.

PDF

PDF to Text

Extract selectable text from a PDF — by page, copy or download .txt, no upload.

PDF

PDF Watermark & Page Numbers

Add text watermarks and page numbers to a PDF.

PDF

Text / Markdown → PDF

Turn plain text or Markdown into a clean, downloadable PDF.

Age Calculator

Your exact age in years, months & days — plus next-birthday countdown and the day you were born.

Aspect Ratio Calculator

Solve width/height for any aspect ratio, with screen & video presets.

BMI & Calorie Calculator

BMI, BMR and daily calorie needs (TDEE) — metric & imperial.

CalculatorsSaves your work

Budget Planner (50/30/20)

Build a 50/30/20 budget from your income — customizable categories with a visual split.

Calendar Event (.ics)

Create an event and download a .ics for Google, Outlook & Apple Calendar.

Calorie Calculator

Daily calories (BMR & TDEE) with activity levels, goals & macro split — Mifflin-St Jeor.

Chart Maker

Paste data and get a clean bar, line, pie or donut chart — export PNG.

Compound Interest Calculator

Project savings & investment growth with contributions and a year-by-year chart.

Countdown & Stopwatch

A big countdown timer and stopwatch with alerts — for events & focus.

Currency Converter

Convert between 150+ currencies with editable offline rates (optional live update).

ConvertersFor business

Date Calculator

Days between dates, add/subtract time, age & business-day counts.

Day Planner (Time Blocking)

Plan your day in time blocks on a visual schedule — saved locally.

Decision Maker

Can’t decide? Spin a wheel, pick a name, flip a coin or roll dice.

Decision Matrix

Score options against weighted criteria to find the best choice — saved locally.

Eisenhower Matrix

Prioritize tasks in urgent/important quadrants — drag between boxes, saved locally.

Saves your workFor students

Event Countdown

Live countdowns to your big dates — exams, launches, weddings — multiple events, saved locally.

Expense Tracker

Log income & expenses by category with totals and a chart — private, export CSV.

Saves your workFor students

Flashcards

Create study decks and review with flip cards & spaced repetition — local.

Fuel Cost Calculator

Trip fuel cost from distance, mileage & fuel price — round trips, cost split between passengers.

Gantt Chart

Plan a project timeline with tasks and a visual Gantt — export PNG.

Goals & OKR Tracker

Set objectives with measurable key results and track progress — stored locally.

GPA Calculator

Calculate weighted GPA from your courses, credits & grades.

Grade Calculator

Weighted course grades & “what do I need on the final?” — categories, weights, targets.

Habit Tracker

Build streaks with a clean habit grid — stored locally, never uploaded.

GeneratorsSaves your workFor business

Invoice Generator

Create branded invoices with your logo and export to PDF — all free.

Kanban Board

A private kanban that saves to your browser. Export/import JSON.

Loan & EMI Calculator

EMI, total interest & a full amortization schedule for any loan or mortgage.

Math Practice

Timed arithmetic drills — choose operations & ranges, track accuracy and personal bests.

For students

Meeting Cost Calculator

See what a meeting really costs — attendees × salary × time, live.

CalculatorsFor business

Editors & studiosSaves your workFor students

Mind Map

Brainstorm on an interactive mind map — add, drag, color & collapse nodes, export PNG/JSON.

Notes

A fast local notebook with Markdown — stays on your device.

Percentage Calculator

Percentages, % change, discounts and tax/VAT — all in one place.

Periodic Table

Interactive periodic table — search elements, view properties, categories & trends.

For students

Saves your workFor students

Pomodoro Timer

Focus timer with task list and session stats.

GeneratorsSaves your workFor students

Portfolio Maker

Build a portfolio, CV or resume website from a simple form — 3 themes, live preview, one-file export ready for GitHub Pages.

Project Board

A beautiful Asana-style board — labels, assignees, due dates, subtasks & drag-drop. Saves locally.

Random Number Generator

Cryptographically random numbers — ranges, count, unique mode, sorting, lottery & dice presets.

Random Team Generator

Split a list of names into fair random groups or pairs — perfect for classrooms & teams.

GeneratorsFor students

GeneratorsSaves your workFor students

Resume Builder

Fill in your details and export a clean, ATS-friendly resume PDF — saved locally.

Salary Converter

Convert pay between hourly, daily, weekly, monthly & annual — custom hours and weeks.

CalculatorsFor business

Scientific Calculator

A full scientific calculator with functions, memory & history.

Sleep Calculator

Find the best bedtime or wake-up time using 90-minute sleep cycles.

Editors & studiosSaves your work

Spreadsheet

A mini spreadsheet with formulas (=SUM, =A1*B2…) and CSV import/export — runs locally.

Statistics Calculator

Paste numbers for mean, median, mode, std-dev, quartiles & a histogram.

Subscription Tracker

Track recurring subscriptions and see monthly & yearly totals — saved locally.

CalculatorsSaves your workFor business

Time Card Calculator

Add up clock in/out times & breaks for daily/weekly hours, overtime & pay.

Time Zone Converter

Convert any date & time between time zones — DST-aware, with copy-ready results.

Time Zone Planner

Find the best meeting time across multiple time zones.

For business

Tip & Bill Splitter

Split a bill with tip across any number of people, instantly.

To-Do List

A fast daily checklist that saves to your browser — priorities, due dates, drag to reorder.

Typing Speed Test

Measure your typing speed (WPM) and accuracy with timed tests — saved locally.

For students

Unit Converter

Convert length, weight, temperature, area, data & more.

ConvertersCalculators

Weekly Meal Planner

Plan a week of meals on a grid and auto-build the grocery list — saved locally.

Editors & studiosSaves your work

Whiteboard

An infinite canvas to sketch, add shapes, text & sticky notes — export PNG.

World Clock

Track the current time across multiple cities and time zones at a glance.

For marketersFor business

Email List Cleaner

Validate, dedupe & clean email lists locally — syntax checks, disposable-domain detection, CSV export.

Hashtag Generator

Turn keywords or a topic into relevant, ready-to-paste hashtags for social.

GeneratorsFor marketers

Keyword Density Checker

Analyze 1–3 word keyword frequencies & density in any text or HTML — with target-keyword tracking.

For marketers

On-Page SEO Checker

Paste a page’s HTML for an instant on-page SEO audit — titles, headings, alts, OG & more.

For marketers

GeneratorsFor designersFor marketers

Social / OG Image Maker

Design a 1200×630 social share image with title, gradient & logo — export PNG.

ConvertersFor developersFor marketers

URL Slug Generator

Turn any title into a clean, SEO-friendly URL slug — bulk mode, separators & accent handling.

X / Tweet Preview

Compose with a weighted character counter (URLs = 23), thread splitter & live preview.

For marketers

YouTube Tag Generator

Generate SEO-optimized YouTube tags from your video title — ranked, deduped, within the 500-character limit. Like RapidTags, but…

GeneratorsFor marketers

Base64 Encode/Decode

Encode & decode text and files to/from Base64.

Caesar / ROT13 Cipher

Encrypt/decrypt with Caesar shift, ROT13 & Atbash — with brute-force decode.

Code Formatter

Beautify or minify JSON, CSS, HTML & JavaScript locally.

Editors & studiosFor developers

Code Playground

Write HTML, CSS & JS with a live preview and console — a local CodePen.

Cron Expression Helper

Translate a cron expression to plain English and preview the next run times.

CSV ↔ JSON

Convert CSV to JSON and back, in the browser.

CSV Viewer & Editor

Open a CSV as a sortable, filterable, editable table — export to CSV/JSON.

cURL Converter

Paste a curl command and get fetch, Axios, Python requests & PowerShell code instantly.

For developersConverters

GeneratorsFor studentsFor marketers

Fancy Text Generator

Turn text into 𝐛𝐨𝐥𝐝, 𝑖𝑡𝑎𝑙𝑖𝑐, 𝓈𝒸𝓇𝒾𝓅𝓉 & 20+ unicode styles — copy for bios & posts.

Privacy & securityFor developers

Hash Generator

SHA-1/256/384/512 of text or files via Web Crypto.

HTML / CSS / JS Minifier

Minify HTML, CSS & JS with safe whitespace/comment stripping — live size savings readout.

For developersConverters

HTML Entities Encoder

Encode & decode HTML entities and escape special characters.

JSON Diff

Semantic JSON comparison — structural diff that ignores key order and shows added/removed/changed paths.

JSON Formatter

Beautify, minify & validate JSON instantly.

JSON to TypeScript

Turn JSON into TypeScript interfaces/types with flexible options — instantly.

Privacy & securityFor developers

JWT Decoder

Decode a JWT’s header & payload locally (no data sent).

Markdown Editor

Write Markdown with live preview & export to HTML.

Markdown Table Generator

Build a Markdown (or CSV/HTML) table from an editable grid.

Morse Code Translator

Translate text ↔ Morse code with adjustable audio playback & flashing.

Number Base Converter

Convert between binary, octal, decimal & hexadecimal.

Number to Words

Convert numbers to words — international & Indian (lakh/crore) systems, plus currency mode.

ConvertersFor business

Roman Numeral Converter

Convert numbers to Roman numerals and back (1–3,999,999).

SQL Formatter

Beautify or minify SQL for many dialects — instant, local, no upload.

SQL Playground

Run SQL on an in-browser SQLite database; import CSVs as tables (one-time engine download).

String Escaper

Escape & unescape strings for JSON, JS, HTML, URL, SQL, CSV, regex & unicode.

Text & File Encryptor

Password-encrypt text or files with AES-256 (Web Crypto) — fully offline.

Text ↔ Binary / Hex

Convert text to binary, hex, octal, decimal or ASCII codes — and back.

Text Cleaner & Line Tools

Sort, dedupe, reverse, trim, find-replace & reformat lines of text.

Text Diff

Compare two texts and highlight every change.

For studentsFor marketers

Text Summarizer

Summarize long text into key sentences or bullets — adjustable length, fully on-device.

Timestamp Converter

Convert Unix timestamps ↔ human dates across time zones.

URL Encoder & Parser

Encode/decode URLs and break them into query parameters.

UUID Generator

Generate v4 UUIDs and ULIDs in bulk.

GeneratorsFor developers

XML Formatter

Beautify, minify & validate XML, and convert XML ↔ JSON — in your browser.

ZIP Extractor & Creator

Open, inspect & extract ZIP files, or bundle your files into a new ZIP — locally.

A/B Test Sample Size Calculator

Free A/B test sample size calculator. Per-variation sample from baseline conversion rate + minimum detectable effect + statistical…

Ad Creative Visual Hook Prompt

Free ad creative prompt generator for Midjourney, Pencil, Adcreative.ai. Build platform-native Meta, TikTok, Pinterest, OOH ad briefs…

Affiliate Commission Calculator

Free affiliate commission calculator. Per-sale + monthly net (after fees), tier-bonus targets, recurring SaaS lifetime. Flat / tiered /…

Anchor Text Analyzer

Free Shopify SEO anchor text keyword tool. Paste HTML, categorise anchors as branded / URL / generic / partial-match / exact-match,…

AOV Calculator

Free AOV calculator. Compute average order value, CM per order, channel AOV, and simulate revenue lift from +$5 to +$25 AOV scenarios.…

App Icon + App Store Prompt

Free app icon prompt generator for App Store. Pick category, glyph, era, color, background; get Midjourney or Nano Banana ready prompt…

Article Schema Generator

Free Article schema generator with URL + image fields. Fill form, copy JSON-LD aligned with Google Article required fields. Supports…

Backlink Signal Checker

Free backlink verifier tools. Paste candidate URLs — fetches each, confirms link is live, reports anchor + rel + dofollow. Verifier…

Blended CAC Calculator

Free blended CAC calculator past Meta vendor dashboards. Sum paid, organic, tools, fees; divide by new customers. True acquisition cost…

Bounce Rate Calculator

Free Shopify bounce rate calculator. Single-page-session %, DTC / blog / B2B / SaaS benchmarks, conversion-lift simulator from a 5-20pp…

Box Shadows Generator

Free CSS box-shadow generator with Material Design elevation presets. Stack up to 5 shadows layers, per-layer offset, blur, spread,…

Brand Voice Prompt Rules Generator

Free brand voice prompt generator for ChatGPT, Claude, Gemini. Build a system prompt with voice archetype, banned words, examples in 60…

Breadcrumb Schema Generator

Free BreadcrumbList schema generator for any home or page route. Build the navigation trail in JSON-LD with one ListItem per crumb.…

Break-Even Calculator

Free break-even calculator. Compute break-even units, revenue, contribution margin, margin of safety, and days from fixed cost per unit…

Break-Even ROAS Calculator

Free break-even ROAS calculator. Minimum ROAS to break even from contribution margin. Refund-adjusted floor + LTV-aware target.…

Burn Multiple SaaS Calculator

Free burn multiple SaaS calculator. Net burn / net new ARR per the David Sacks framework. SaaS verdict tiers + cash-runway sanity…

Business Name Generator

Free business name generator. Enter a keyword and industry; get 50 brand names across 5 styles: abstract, evocative, compound, founder,…

Cache-Control + Max-Age Headers Checker

Free cache headers + max-age checker. Paste curl -I, parses Cache-Control max-age, ETag, Last-Modified, Expires. Letter-grade caching…

Canonical URL Checker

Free canonical URL checker tool for Google SEO. Paste page HTML, extracts rel=canonical, validates absolute + HTTPS, flags duplicate…

Case Converter

Free case converter for code variables. Type once, see all 13 cases live: UPPERCASE, lowercase, Title, camelCase, PascalCase,…

CDN Detector

Free CDN + edge web detector. Paste curl -I, identifies Cloudflare, Fastly edge, CloudFront, Vercel, Netlify, Akamai web CDN, Bunny +…

Character Counter

Free character counter for content. Count characters, words, sentences, paragraphs, lines, reading time. Tweet, SEO title, meta…

Churn Rate SaaS Calculator

Free churn rate percent calculator for SaaS. Compute logo churn percent, revenue churn, net revenue retention (NRR), annualized churn…

Shopify CMS Platform Detector

Free CMS detector with platform-confidence score. Paste HTML source, we identify WordPress, Shopify, Squarespace, Wix, Webflow, Ghost,…

SaaS Cohort Retention Calculator

Free cohort retention calculator. 24-month survivor curve + half-life from monthly retention rate. SaaS / DTC / mobile presets.…

Text + Large Color Contrast Checker

Free color contrast checker. WCAG AA and AAA ratios for normal text, large text, and UI. Live swatch preview, hex and RGB input,…

Brand Color Palette Extractor

Free color palette extractor. Upload image, get dominant + 8-color palette. Hex, RGB, HSL output. Click swatch to copy. Powered by…

Compression Detector

Free compression detector + Vary headers audit. Paste curl -I, checks Content-Encoding (gzip / br / deflate / zstd), validates Vary…

Conversion Funnel + CVR Calculator

Free 5-stage conversion funnel calculator. Identifies leakiest stage by benchmark gap, projects revenue from a +5pp fix. DTC / SaaS /…

Conversion Rate Calculator

Free conversion rate percent calculator with visitors lift. Compute CVR, revenue per visitor, category benchmark, incremental-revenue…

Page Cookies Analyzer

Free page cookies analyzer. Paste Set-Cookie headers, get name / domain / path / expiry / Secure / HttpOnly / SameSite per cookie, plus…

Core Web Vitals First Data Checker

Free Core Web Vitals checker. First Contentful Paint, field data (28-day p75 from CrUX), lab data for LCP, INP, CLS, FCP, TTFB. Mobile…

CORS URL Requests Checker

Free CORS checker API tool. Real browser URL fetch from origin across 4 method requests. Reports exact CORS error or success. Privacy:…

CSP Validator

Free Content Security Policy validator with scripts audit. Paste your CSP — get per-directive parsing for unsafe-inline, unsafe-eval,…

CSS Google Size Checker

Free CSS web development size checker for Google PSI. Live PSI lists every stylesheet with byte size + 1P/3P split + render-blocking +…

CTR Calculator

Free CTR organic position clicks calculator with 9 channel benchmarks (Google, Meta, Display, TikTok, LinkedIn, email, organic SERP).…

DAU MAU Users + SaaS Ratio Calculator

Free DAU/MAU users stickiness calculator. 7 category benchmarks (messaging, social, productivity, B2B SaaS, ecommerce). Habit-tier…

CNAME Lookup

Free CNAME lookup tool for web development. Enter a hostname, queries Cloudflare DoH for canonical-name record, follows alias chain to…

DNS Domain DMARC Lookup

Free DNS domain lookup .com tool. Live A, AAAA, MX, TXT, DMARC, NS, CNAME, CAA records via Cloudflare DNS-over-HTTPS. Browser-only, no…

MX Record Checker Tool

Free MX record email checker tool. Enter a domain, queries Cloudflare DoH (1.1.1.1) for mail-server records, lists each by priority,…

DNS Propagation Cloudflare Google Tool

Free DNS propagation checker tool. Queries Cloudflare 1.1.1.1 and Google 8.8.8.8 in parallel for the same record. Spot global…

Domain Age + Registration Checker

Free domain age checker. Cross-references the RDAP registration date with the Wayback Machine's first-capture date. Surfaces…

Domain Authority Checker

Free domain authority checker, an alternative signal vs Moz DA + Ahrefs DR. Composite site-maturity score from Wayback age + DNS + TLS…

Domain Availability Checker

Free domain availability checker tool. Live RDAP registry lookup tells you which registrar holds any .com / .ai / .io / .co / ccTLD or…

Domain Health Checker

Free composite domain health checker with grade. DNS signal (A/AAAA/MX/TXT), SSL status, domain age, Wayback archive, PageSpeed score…

Profit + Percent Calculator

Free ecommerce profit calculator. Enter revenue, COGS, shipping, fees, ads, fixed costs. Get gross margin percent, contribution margin,…

Email Design + Cart Prompt

Free email design prompt generator for Klaviyo, Claude, v0.dev, Postscript. Build subject + preheader + cart-abandon + section spec +…

Email Monthly List Growth + Churn Calculator

Free email list growth calculator. Projects subscribers over 12-24 mo from starting list, signup %, churn %. Target line + horizon…

Event Schema + Offers Generator

Free Event schema generator with ISO dates. Venue + offers + status. Inline validator catches missing eventStatus, location, organizer,…

External Links Counter

Free external link counter. Paste HTML — splits internal vs external, audits rel attributes, flags missing rel=noopener security.…

FAQ Schema Generator

Free FAQPage schema generator with visible Google Rich result validator. Add unlimited Q+A pairs, valid JSON-LD with required fields,…

CSS Gradients Generator

Free CSS gradients generator with multi-stop linear, radial, conic. Draggable position stops, live preview, CSS output, Tailwind config…

Google Heading Hierarchy Checker

Free heading hierarchy checker per page for Google SEO. Paste HTML, parses H1-H6 page outline, flags multiple H1s, skipped levels,…

Heading Page Outliner Services

Free heading structure hierarchy outliner services for SEO. Paste HTML, get H1-H6 outline with warnings for missing H1, skipped levels,…

Headline Analyzer

Free headline analyzer. Score blog headlines 0-100 on length, word mix, emotion, power words, clarity, and SERP meta fit. For ad,…

Hosting + Cloudflare Web Development Detector

Free hosting provider web development detector. Live DoH lookup + ipapi.co ASN — identifies AWS, GCP, Azure, DigitalOcean, Vercel,…

Hreflang Links + Locale Checker

Free hreflang checker. Paste your page HTML — extracts every rel=alternate hreflang tag, validates ISO codes, x-default presence, and…

Hreflang Generator

Free hreflang generator for Google. Output HTML tags, XML sitemap xhtml:link, or HTTP headers. Built-in reciprocal validator. 4 preset…

HTML to Markdown Content

Free HTML to Markdown content converter. Paste HTML, live side-by-side preview. GFM extension (tables, strikethrough, task lists).…

HTTP Headers Checker

Free HTTP headers checker. Paste curl -I or DevTools browser headers. Audits caching, CSP security (HSTS, X-Frame), compression, server…

HTTP Status Code Checker

Free HTTP status code checker. Type URL — live fetch returns status code, content-type, server, response time. Bulk-check up to 20 URLs…

HTTP/2 + HTTP/3 Checker

Free HTTP protocol checker. Paste curl -I — header audit identifies HTTP/1.1 vs HTTP/2 vs HTTP/3, validates Alt-Svc. Web development…

HTTPS / SSL / TLS Checker

Free HTTPS / SSL / TLS checker for any domain. Live reachability + Certificate Transparency lookup (crt.sh) for issuer + cert history +…

Image Alt Text Checker

Free image alt text checker. Paste HTML; we scan every <img> tag, flag missing alt, empty alt, filename-as-alt, screen-reader and…

Image Format Checker

Free image format checker. Paste HTML — scans every img tag for format (jpg/png/webp/avif/svg), lazy-loading, srcset, modern-images…

Internal Link Counter Tool

Free Shopify internal links counter tool. Paste page HTML — counts every internal vs external link, lists unique destinations, flags…

IP Geolocation Lookup

Free IP geolocation lookup tool. Enter IPv4 / IPv6 IPs — returns country, region, city, ISP, ASN, timezone. Powered by ipapi.co live…

IP Lookup Tool

Free IP lookup tool. Resolves a domain to its A and AAAA records, then performs reverse DNS (PTR) on each IP to surface the hosting…

JavaScript Framework Detector

Free JS framework detector tool. Paste HTML — identifies React, Vue, Angular, Svelte, plus state mgmt (Redux, Zustand, Pinia), routing,…

JavaScript Web Size Checker

Free JavaScript web development size checker. Live PSI fetch lists every JS file with size + first-party vs third-party split + INP…

JSON Validator

Free JSON validator with deep diagnostics. Paste JSON or NDJSON for strict parse, common-mistake detector, structure stats (depth,…

Landing Page Prompt Book

Free landing page prompt generator for v0.dev, Claude, Cursor. Book a 60-second Tailwind sections spec for any DTC, SaaS, or agency…

Lighthouse Mobile Performance Checker

Free Lighthouse audit + score checker for any URL. Mobile performance, SEO, Accessibility, Best Practices live via PSI. Mobile +…

LocalBusiness Schema Generator

Free Google LocalBusiness schema generator with address. Fill form, copy JSON-LD with address, geo coords, weekday hours, telephone,…

Logo Prompt Generator

Free logo prompt generator for any mark, monogram or wordmark. Pick brand archetype, style, color, form; get a Midjourney or Nano…

Lorem Ipsum Generator

Free Lorem Ipsum placeholder generator. Words, sentences, or paragraphs. Four variants: classic Cicero Latin, hipster, designer-jargon,…

LTV Calculator

Free LTV calculator. Enter AOV, purchase frequency, customer lifespan, and gross margin. Get gross LTV, contribution LTV, and CAC…

Markdown to HTML

Free Markdown to HTML development converter. Live side-by-side preview, GFM CommonMark mode, copy HTML, download .html. Powered by…

Markup Calculator

Free markup calculator. Bidirectional entry (markup percent, margin percent, or selling price). Industry benchmarks. Markup vs margin…

Meta Description Checker

Free Google meta description checker tool. Paste description or full HTML; we check length (120-155 char), pixel-width truncation, CTA…

Meta Tag Generator

Free meta tag generator. Build HTML meta tags, Open Graph, and Twitter Card with live Google SERP, Facebook, and X previews.

Mobile-Friendly Test

Free mobile-friendly test. Live Google PSI mobile audit — checks viewport, tap targets, font size, content width. Verdict + per-issue…

MRR ARR Calculator

Free SaaS MRR + ARR development calculator. Compute monthly recurring revenue, annualized ARR, net new MRR, growth rate, Quick Ratio…

Multi-URL Audit

Free bulk SEO audit. Run Google PSI on up to 5 URLs in sequence — comparison table of Performance, SEO, Accessibility, Best Practices…

Open Graph Image Card Preview

Free Open Graph image preview card tool. Test how OG cards and tags render on Facebook, X, LinkedIn, Slack, WhatsApp from any URL.…

Packaging Design Prompt Generator

Free packaging design prompt generator. Pick product, brand vertical, material, print style, color, and setting; get a Midjourney or…

Page Weight Analyzer

Free page weight analyzer for web development. PSI byte breakdown by type — HTML, CSS, JS, image, font, third-party. Per-type budget…

CAC Payback Calculator

Free CAC payback calculator with contribution margin. Enter AOV, repeat rate, gross margin, CAC. Get months to payback, cohort…

Product Photo Prompt Style

Free product photo prompt generator for Nano Banana, Midjourney, Imagen. Build subject + lighting + camera + style + color prompts in…

Product Schema Generator

Free Product schema generator. Fill the form, copy JSON-LD with offers, aggregateRating, brand, GTIN/SKU. Aligned with Google Product…

Purchase Order Generator

Free purchase order generator. Issue a buyer-side PO with vendor, ship-to, line items, terms, delivery date. Branded invoice PDF. No…

Quote Generator

Free quote generator. Build a priced quote with line items, tax, discount, and notes. Download as a branded PDF. Browser-only, no…

Readability Checker

Free readability checker. Paste text; get Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG, ARI scores and sentence-level…

Reading Time Calculator

Free reading time WPM calculator with figure-aware count. Live count of words and content reading time across slow / average / fast /…

Receipt Generator

Free receipt generator. Log a payment with buyer, payer, method, amount, balance, and item detail. Download as a branded invoice PDF.…

Redirect Chain Checker

Free HTTP redirect chain checker. Paste curl -ILv output — traces 301/302/307/308 redirects hops, flags chain length, mixed status,…

Regex Tester

Free regex tester tool. Live URL regex matches, capture groups, named groups, replace preview. JavaScript regex flavor with all flags.…

Render Blocking Checker

Free render-blocking resources checker. Live PSI web development LCP audit lists every CSS / JS file blocking initial render with byte…

Review Schema Generator

Free Reviews schema generator for Google rich results. Fill the form for individual Review or aggregate AggregateRating with star…

ROAS Calculator

Free ROAS calculator. Compute per-channel ROAS across Meta, Google, TikTok, and affiliate. Get blended ROAS and break-even ROAS from…

Robots.txt Generator

Free robots.txt generator. Presets for Shopify, WordPress, Webflow, Next.js. Individual toggles for every AI crawler (GPTBot,…

Robots.txt Tester

Free robots.txt disallow tester. Paste robots.txt and a URL; we run the live RFC 9309 longest-match for Googlebot, Bingbot, GPTBot,…

Runway Calculator

Free startup runway calculator with cash scenarios. Enter cash on hand, monthly burn, monthly revenue — live runway in months +…

SaaS LTV:CAC Ratio Calculator

Free SaaS LTV:CAC ratio calculator with monthly churn. Lifetime value, customer acquisition cost, payback period, ratio + verdict band…

SaaS Magic Number Calculator

Free SaaS magic number calculator. Sales efficiency from new quarter ARR + S&M spend. Verdict bands at 0.5 / 0.75 / 1.0.…

SaaS Quick Ratio Calculator

Free SaaS Quick Ratio MRR calculator. (New + Expansion MRR) / (Churned + Contraction). Stage churn verdict for seed, Series A/B/C,…

Schema Markup Generator

Free schema markup generator. Valid JSON-LD for Article, Product, FAQPage, LocalBusiness, Event, and BreadcrumbList. Tested for Google…

SERP Preview Generator

Free SERP preview generator. See your title, URL, and meta description rendered as a Google search-result title snippet, mobile +…

Shopify Discount URL Generator

Free Shopify discount URL generator. Build auto-apply discount share links with optional product, redirect path, and QR code download.…

Shopify ROI Calculator

Free Shopify rebuild ROI calculator. Enter GMV, conversion lift percent, AOV lift, build cost. Get payback month, 12-month return, and…

Shopify Speed Score Test

Free Shopify speed test with score. PageSpeed data, Shopify apps detection (Klaviyo, Yotpo, Judge.me), Core Web Vitals, per-app weight…

Site Health Checker

Free site health checker via Google Lighthouse PSI. 4-cat composite (Performance + SEO + A11y + Best Practices) → grade + top 5 fixes.…

Slogan Generator

Free slogan generator for product brands. Enter your brand and offering; get 40 slogans and taglines across 5 tones: confident, warm,…

Social Post Prompt Generator

Free social post prompt generator. Pick platform, goal, format, voice, length, CTA, and hashtag style; get a ChatGPT or Claude ready…

SOW Generator

Free SOW generator for client work. Build statement with scope, deliverables, milestones, acceptance criteria, priced phases. Branded…

SPF DKIM DMARC Checker Tool

Free SPF, DKIM, and DMARC checker tool. Enter a domain — queries Cloudflare DoH for the email-auth TXT records and validates SPF…

SSL Certificate Inspector

Free SSL certificate inspector tool. Pulls the most-recent cert from public Certificate Transparency logs (crt.sh) and lists SAN domain…

SSL Expiry Monitor Tool

Free SSL expiry monitor tool. Paste up to 20 hostnames at once for cert expiry — days-remaining + renewal status per .com / .net domain…

A/B Test Statistical Significance Calculator

Free A/B test significance calculator. Control + variant lift, two-proportion z-test, p-value, confidence, lift %. Verdict at 90/95/99%…

Structured Data Validator Tool

Free structured data validator tool. Paste JSON-LD or microdata; we parse, walk every node, and check required fields, ISO formats,…

Subdomain Finder Tool

Free subdomain finder tool. Enumerates every public sub-domain .com ever issued an SSL certificate via crt.sh Certificate Transparency…

SVG Optimizer Tool

Free SVG optimizer tool. Strip XML comments, editor metadata (Inkscape, Adobe, Sketch), redundant default attributes. Rounds decimals.…

Tech Stack Detector Tools

Free tech stack detector tools. Paste HTML — we identify JS framework, CSS framework, analytics, payment, ads, chat, CRM, A/B test…

Title Case Converter

Free title case converter with AP, Chicago, MLA, APA, NYT, Wikipedia sentence-case modes. Handles prepositions per style. Browser-only,…

Title Tag Checker

Free title tag checker brand keyword tool. Paste a title or full HTML; we run length, pixel-width, brand-presence, capitalization, and…

Twitter Card Validator

Free Twitter Card validator with summary preview. Paste page HTML — extracts every twitter:card / title / description / image meta tag,…

User Agent Parser

Free user agent parser tool. Paste a UA string — Chrome/Mozilla version, browser, OS, device, engine, bot detection. Auto-fills your…

UTM Builder

Free UTM builder. Tag paid campaign URLs with UTM parameters. Platform presets for Meta, Google, TikTok, LinkedIn, Email, Klaviyo. QR…

Wayback Archive Viewer

Free Wayback Machine viewer tool. Find the first archived domain URL capture plus year-by-year snapshots back to 1996. Browser-only, no…

Web Server Detector

Free web server CDN origin stack detector. Paste Server / X-Powered-By / response headers — we identify nginx, Apache, IIS, Caddy,…

Website Audit

Free website audit tool. Enter a URL, get a Digital-Heroes-branded scorecard across Performance, SEO, Accessibility, and Best…

Website Hero Prompt Generator

Free website hero prompt generator for v0.dev, Claude Design, Cursor, Lovable. Build a hero brief with primary layout, copy direction,…

WHOIS Lookup

Free WHOIS lookup. Real registrar, creation date, expiration, name servers, and status from the live RDAP registry. Browser-only, no…

XML Sitemap Generator

Free XML sitemap generator. Paste URLs or upload CSV, set priority, changefreq, lastmod, image + hreflang annotations. Auto-splits…

XML Sitemap Validator

Free XML sitemap URLs validator. Paste a sitemap.xml; we parse it, check urlset namespace, validate every URLs loc / lastmod /…

YAML Validator

Free YAML validator. Live syntax check, parse-error line + col, indentation rules, JSON-equivalent view, common-mistake detector (tabs,…