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JustTools

All Free Online Tools

98 free tools across 14 categories. Every one runs in your browser, with no sign-up and no uploads.

Showing 98 of 98 tools

Popular

Image Compressor

Compress JPG, PNG, WebP and AVIF images online for free. Shrink photos by up to 90% or hit an exact KB target — right in your browser, with no upload.

Image ToolsOpen
Popular

Word Counter

Free online word counter: count words, characters, sentences and paragraphs as you type, with reading time, keyword density, readability and limits.

Text ToolsOpen
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Password Generator

Generate strong, random passwords, memorable passphrases and PINs with a cryptographically secure generator. Free, instant and private — nothing is stored.

Security ToolsOpen
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JSON Formatter & Validator

Format, validate, minify and repair JSON online. Get the exact line and column of every error, a collapsible tree view and sorted keys — private, in-browser.

Developer ToolsOpen
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EMI Calculator

Calculate your loan EMI, total interest and full repayment schedule instantly. See yearly charts, the impact of prepayments and download the schedule.

CalculatorsOpen
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Merge PDF

Merge PDF files online for free. Combine PDFs in any order, pick exact pages from each and download one file — processed in your browser with no upload.

PDF ToolsOpen
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Image Resizer

Resize JPG, PNG and WebP images by pixels, percentage or social media presets. Crop to fill or fit, batch resize and download a ZIP — no upload needed.

Image ToolsOpen
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QR Code Generator

Create free QR codes for links, UPI payments, Wi-Fi, WhatsApp, contacts and more. Add colours and a logo, download PNG or SVG. Codes never expire.

QR & Barcode ToolsOpen
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Text to Handwriting

Turn typed text into realistic handwriting on ruled paper. Pick from 7 handwriting styles including Hindi, choose ink and paper, and download PNG or PDF.

Text ToolsOpen
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Images to PDF

Convert JPG, PNG and other images to one PDF. Reorder and rotate pages, choose A4 or Letter, margins and quality — free, private and with no upload.

PDF ToolsOpen
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PDF Password Remover

Remove the password from PDFs you can open. Unlock AES and RC4 protected PDFs and lift print and copy restrictions — free, in your browser, no upload.

PDF ToolsOpen
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WebP Converter

Convert PNG, JPG, GIF and HEIC images to WebP in your browser. Lossy or lossless, transparency kept, batch ZIP download — free, private and with no upload.

Image ToolsOpen
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HEIC to JPG Converter

Convert HEIC and HEIF photos from iPhone to JPG, PNG or WebP right in your browser. Batch convert at full resolution — free, private and with no upload.

Image ToolsOpen
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Compress PDF

Compress PDF files in your browser: shrink scans and image-heavy PDFs, or hit a target like 200 KB. Text stays sharp and selectable — free, private, no upload.

PDF ToolsOpen
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Barcode Generator

Free barcode generator for EAN-13, UPC-A, Code 128, Code 39, ITF-14, GS1-128 and Data Matrix. Check digits added, exact mm size, PNG, SVG and batch print.

QR & Barcode ToolsOpen
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BMI Calculator

Free BMI calculator: enter height in feet or cm and weight in kg or lb to see your BMI, WHO or Asian (Indian) category and healthy weight range.

CalculatorsOpen
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Worksheet Generator

Free maths worksheet generator: printable addition, subtraction, times tables and division sheets with answer keys. Set the difficulty, download a PDF.

Education ToolsOpen
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XML to JSON Converter

Convert XML to JSON and JSON to XML online. Keeps attributes, arrays and leading zeros intact, shows exact error lines and never uploads your data.

Developer ToolsOpen
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WhatsApp Chat Analyzer

Analyse a WhatsApp chat export: who texts most, busiest days and hours, top emojis and words, reply times. Android and iPhone — never uploaded.

Text ToolsOpen
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SSL Checker

Check any website’s SSL certificate: expiry date and days left, issuer, covered domains, revocation and CAA, plus a live HTTPS test from your browser.

Security ToolsOpen
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Split PDF

Split a PDF into several files by page ranges, every N pages or one file per page, or extract just the pages you need. Free, private, no upload.

PDF ToolsOpen
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PDF to JPG

Convert PDF pages to high-quality JPG or PNG images at up to 300 DPI. Pick the pages, download one image or a ZIP — free, private and no upload.

PDF ToolsOpen
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Rotate PDF

Rotate PDF pages and save them permanently, delete pages you don’t need and drag pages into a new order. See every page, free, with no upload.

PDF ToolsOpen
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Protect PDF

Add a password to a PDF with AES-256 encryption, and optionally block printing, copying or editing. Free, runs in your browser — nothing is uploaded.

PDF ToolsOpen
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Redact PDF

Redact PDFs for real: black out names, Aadhaar, PAN, phone numbers and more so the hidden text is gone for good. Find-and-mark, free, no upload.

PDF ToolsOpen
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PDF Watermark

Add a text or logo watermark to a PDF: CONFIDENTIAL, DRAFT or “For KYC only” stamps with your own size, angle and opacity. Free, private, no upload.

PDF ToolsOpen
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HTML to PDF

Convert HTML code or an .html file to PDF with real, selectable text and clickable links. Choose A4 or Letter, margins and backgrounds. Free, no upload.

PDF ToolsOpen
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Flatten PDF

Flatten a PDF online: turn filled form fields, signatures, comments and highlights into fixed page content no one can edit. Free, private, no upload.

PDF ToolsOpen
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DNS Lookup

Free DNS lookup: check A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records of any domain, see SPF and DMARC, and do reverse DNS for an IP address.

Developer ToolsOpen
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DNS Propagation Checker

Check DNS propagation worldwide: see the A, CNAME, MX, NS or TXT answer from 7 public DNS networks and 18 ISPs in 15 countries, and track the change.

Developer ToolsOpen
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EXIF Metadata Remover

Remove EXIF metadata from photos: GPS location, camera, date and hidden data in JPG, PNG, WebP and HEIC — with no quality loss and no upload. Free.

Image ToolsOpen
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Image Blur Tool

Blur faces, number plates, text or the background in any photo. Blur, pixelate or black out areas, then download it full size — free, private, no upload.

Image ToolsOpen
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Image Steganography Tool

Hide a secret message or file inside an image, protected with a password, and reveal hidden messages from PNG images. Free and private — no upload.

Security ToolsOpen
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Image Watermark

Watermark photos with your name, © text or logo in one go: choose position, size, angle and opacity, or repeat it across the image. Free, no upload.

Image ToolsOpen
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JSON to CSV Converter

Convert JSON to CSV for Excel or Google Sheets: nested objects become columns, lists are kept and big numbers stay exact. Also CSV to JSON. No upload.

Developer ToolsOpen
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Passport Size Photo Maker

Make passport size photos online: India passport, PAN card, visa, US, UK and more. Face guide, print sheets for 4×6 or A4, and KB limits for forms.

Image ToolsOpen
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Password Strength Checker

Check how strong a password is: time to crack, common words and patterns it hides, tips to improve it, and a safe data-breach check. Fully private.

Security ToolsOpen
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CSV to JSON Converter

Convert CSV or data pasted from Excel to JSON: auto-detected delimiter, real numbers and true/false, nested objects from dotted columns. Free, no upload.

Developer ToolsOpen
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UUID Generator

Generate UUIDs (GUIDs) online: random v4, sortable v7, v1, and name-based v5 and v3 — one or 10,000 at a time. Also decode and validate any UUID.

Developer ToolsOpen
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UTM Builder

Build UTM campaign links for Google Analytics 4: presets for WhatsApp, Instagram, email and ads, the GA4 channel each lands in, and a QR code for it.

SEO & Marketing ToolsOpen
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URL Encoder / Decoder

Encode or decode URLs and query strings online: %20, + and UTF-8 (Hindi, emoji) done right, errors pinpointed, and URL parameters shown in a table.

Developer ToolsOpen
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Fancy Font Generator

Turn text into stylish fonts to copy and paste: bold, italic, cursive, bubble, gothic and more for Instagram bios, WhatsApp, BGMI names and posts. Free.

Text ToolsOpen
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Base64 Encoder & Decoder

Encode text or files to Base64 and decode Base64 back — UTF-8, URL-safe Base64URL, data URLs for images, file type detection. Free, private, no upload.

Developer ToolsOpen
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Case Converter

Change text case online: UPPERCASE, lowercase, Title Case, Sentence case, and camelCase, snake_case or kebab-case for code. Smart rules, instant, free.

Text ToolsOpen
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Markdown Live Previewer

Write Markdown with a live preview: GitHub tables, task lists, alerts and highlighted code. Export to HTML or PDF — free, private, runs in your browser.

Developer ToolsOpen
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Compare PDFs

Compare two PDFs online and see what changed: added and removed words highlighted, plus a page-by-page visual diff. Free and private — nothing is uploaded.

PDF ToolsOpen
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PDF Page Organizer

Rearrange PDF pages online: drag to reorder, rotate, delete, duplicate, add blank pages or pages from other PDFs. Free, private, no upload, with undo.

PDF ToolsOpen
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Add Page Numbers to PDF

Add page numbers to a PDF online: 1, Page 1 of 10, Roman numerals or your own format, in any corner. Skip the cover, number from any page. Free, no upload.

PDF ToolsOpen
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Crop PDF

Crop PDF pages online: drag a box or auto-detect white margins, then crop one page, some or all. Free, private, no upload — text stays sharp and selectable.

PDF ToolsOpen
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Sign PDF

Sign a PDF online for free: draw, type or upload your signature, add initials and the date, and place them on any page. Private — nothing is uploaded.

PDF ToolsOpen
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JSON to XML Converter

Convert JSON to XML online: attributes, text, arrays and nested data, with a root element, CDATA and pretty or minified output. Free and private, no upload.

Developer ToolsOpen
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Cron Expression Generator

Build and explain cron expressions in plain English with next run times. Supports Linux crontab, Quartz, Spring and AWS EventBridge, and converts between them.

Developer ToolsOpen
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CSS to Tailwind Converter

Convert CSS to Tailwind classes online: hover, media queries, dark mode and gradients become variants, colours match the palette. Tailwind v4 and v3, free.

Developer ToolsOpen
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Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE3, CRC32 and HMAC hashes of text or files, and verify checksums. Free, fast and private — no upload.

Developer ToolsOpen
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Age Calculator

Calculate your exact age in years, months and days, the next birthday countdown and age on any date. Check exam age limits as on a cut-off date. Free.

CalculatorsOpen
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SVG to PNG, JPG & WebP Converter

Convert SVG to PNG, JPG or WebP online at any size — 1x, 2x, 3x or exact pixels — with a transparent or coloured background. Batch convert, free, no upload.

Image ToolsOpen
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PPK to PEM Converter

Convert a PuTTY .ppk private key to PEM or OpenSSH format online, with or without a passphrase. Supports PPK v2 and v3, RSA, ECDSA and Ed25519. No upload.

Security ToolsOpen
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PEM to PPK Converter

Convert a PEM or OpenSSH private key (id_rsa, AWS .pem) to a PuTTY .ppk file online — PPK v3 or v2, with an optional passphrase. Free, private, no upload.

Security ToolsOpen
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QR Code Scanner

Scan QR codes online with your camera or from a photo or screenshot. Shows links safely, UPI payments, Wi-Fi passwords and contacts. Free, private, no app.

QR & Barcode ToolsOpen
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Barcode Scanner

Scan barcodes online with your camera or from a photo: EAN-13, UPC, Code 128, Code 39, ISBN, DataMatrix and PDF417. Batch scan to CSV. Free, no app needed.

QR & Barcode ToolsOpen
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Random Name Picker

Pick random names with a spinning wheel: one or several winners, no repeats, and random groups. Fair, private and free — great for classrooms and giveaways.

Education ToolsOpen
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CSV to Interactive Chart

Turn CSV or Excel data into an interactive bar, line, area, pie or scatter chart online. Group and sum rows, hover for values, download PNG or SVG. No upload.

Developer ToolsOpen
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Website SEO Checker

Free website SEO checker: audit any page’s title, meta description, headings, canonical, robots.txt, schema, Open Graph and AI crawler access, with fixes.

SEO & Marketing ToolsOpen
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IP Subnet Calculator

Free IP subnet calculator for IPv4 and IPv6: network, broadcast, host range, mask and wildcard from any CIDR, plus subnetting, VLSM and route summarisation.

Internet & Network ToolsOpen
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Internet Speed Test

Free internet speed test: check download and upload speed, ping, jitter and bufferbloat on Wi-Fi, broadband or mobile data — no app, with a data saver mode.

Internet & Network ToolsOpen
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JWT Debugger

Decode any JWT and verify its signature in your browser: header, claims and expiry explained; HS256, RS256, ES256 and EdDSA with PEM or JWK keys. No upload.

Developer ToolsOpen
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JWT Encoder

Create and sign JWTs in your browser with HS256, RS256, PS256, ES256 or EdDSA: edit claims, set expiry, generate keys and a JWKS. Keys never leave your device.

Developer ToolsOpen
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OMR Sheet Generator

Make printable OMR answer sheets free: up to 300 questions, 4 or 5 options, roll number bubbles, NEET-style sections and an answer key — as a PDF or print.

Education ToolsOpen
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Sitemap Generator

Free XML sitemap generator: crawl your site or paste URLs, skip noindex, redirected and robots.txt-blocked pages, add lastmod and images, ready for Google.

SEO & Marketing ToolsOpen
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Robots.txt Generator

Create a robots.txt file free: block admin pages, AI training bots like GPTBot or SEO crawlers, add your sitemap, then test any URL against Google’s rules.

SEO & Marketing ToolsOpen
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Markdown to HTML Converter

Convert Markdown to clean HTML online: GitHub tables, task lists and highlighted code, as a snippet or full page, minified or not. Batch files, no upload.

Developer ToolsOpen
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Resume Builder

Free resume builder with 4 ATS-friendly templates: fill in your details, see a live preview, and download a PDF or Word file. No sign-up and no watermark.

Career ToolsOpen
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Tic Tac Toe

Play Tic Tac Toe online free against the computer — Easy, Medium or unbeatable Hard — or with a friend on one device. 3×3 to 6×6 boards. No sign-up.

GamesOpen
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Image Color Picker

Pick colours from any image: get HEX, RGB, HSL and CMYK codes with a zoom loupe, plus the image’s colour palette. Free, private — nothing is uploaded.

Image ToolsOpen
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Image to Grayscale Converter

Convert images to grayscale or black and white online: pick the method, adjust contrast, add sepia, and download in bulk as JPG, PNG or WebP. Free, no upload.

Image ToolsOpen
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Crop Image

Crop images online to any size or ratio: 1:1, 16:9, Instagram and YouTube sizes, circle crop, rotate, flip and straighten. Free, private and full quality.

Image ToolsOpen
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Favicon Generator

Create a favicon from an image, text or emoji: get favicon.ico, SVG, Apple touch and Android icons, the web manifest and HTML code. Free, nothing uploaded.

Image ToolsOpen
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Unit Converter

Convert length, weight, area, volume, temperature, speed, data and 8 more quantities — including guntha, bigha, tola and lakh. Type “5 ft 10 in to cm”.

ConvertersOpen
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Unix Timestamp Converter

Convert Unix epoch time to a date in any time zone and back. Detects seconds, ms, µs and ns; also Excel, LDAP and WebKit times, and timestamps in logs.

ConvertersOpen
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Emoji & Kaomoji Picker

Search and copy every emoji, 200 kaomoji like ¯\_(ツ)_/¯ and 270+ text symbols with one click. Skin tones, recents and Unicode codes for developers.

Text ToolsOpen
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GST Invoice Generator

Make GST tax invoices in your browser: CGST, SGST or IGST worked out, GSTIN check, HSN summary and a UPI QR code. Download a PDF — free, no sign-up.

Business ToolsOpen
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Salary Slip Generator

Make monthly salary slips as PDF: earnings, PF, ESI, professional tax and TDS worked out, loss of pay and net pay in words. Free, private, no sign-up.

Business ToolsOpen
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Bingo Card Generator

Make printable bingo cards, Tambola (Housie) tickets or word bingo — unique and numbered — then call the game on screen with voice and check winners.

GamesOpen
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Coin Flip

Flip a coin online: a fair 50/50 heads or tails toss with a 3D coin. Flip up to 10 coins, play best of 3, use custom sides and see your stats. Free.

GamesOpen
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ATS Resume Checker

Free ATS resume checker: see what applicant tracking systems read from your PDF or Word resume, get a score with clear fixes, and match it to any job.

Career ToolsOpen
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URL Shortener

Free URL shortener: make short links with a custom ending, QR code, password, expiry and click stats — or check where any short link really goes.

SEO & Marketing ToolsOpen
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Typing Speed Test

Free typing speed test in English and Hindi: check your WPM and accuracy, practise with passages, and take an exam-style test with full and half mistakes.

Education ToolsOpen
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SVG Optimizer

Optimise SVG files online with SVGO: smaller icons and logos with a side-by-side preview, batch ZIP download, data URI, CSS and React output. No upload.

Image ToolsOpen
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Sudoku

Play free Sudoku online: easy to expert puzzles with one solution, notes, hints that explain the logic, a daily puzzle, printable PDFs and a solver.

GamesOpen
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Pixel-Perfect Screen Ruler

Free online screen ruler: a real-size cm and inch ruler calibrated with a bank card, plus pixel-perfect measuring of screenshots with zoom and smart edges.

Developer ToolsOpen
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Regex Tester

Free online regex tester: live match highlighting, groups, replace, a plain-English explanation, unit tests and code for Python, PHP, Java, C# and Go.

Developer ToolsOpen
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Hex to ASCII Converter

Convert hex to ASCII or UTF-8 text and text to hex as you type. Reads 0x, \x and spaced hex, flags bad bytes and shows a hex dump. Free, private, no upload.

Developer ToolsOpen
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Binary to Text Converter

Translate binary code to text and text to binary, live. Handles spaced or joined 8-bit bytes, UTF-8 Hindi and emoji, and flags bad digits. Free and private.

Developer ToolsOpen
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HMAC Generator

Generate HMAC-SHA256, SHA-512, SHA-1 or MD5 in hex or Base64, and verify GitHub, Stripe, Slack, Shopify and Razorpay webhook signatures. Private, no upload.

Developer ToolsOpen
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Bcrypt Generator & Checker

Generate bcrypt hashes with cost 4–16 and $2a/$2b/$2y prefixes, or check a password against a bcrypt hash. Explains each part. Runs in your browser only.

Security ToolsOpen
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Marriage Biodata Maker

Make a marriage biodata with photo in English, Hindi or Marathi — rashi, nakshatra, gotra, family details — and download a PDF or JPG for WhatsApp. Free.

Career ToolsOpen
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Minesweeper

Play Minesweeper free online: Beginner, Intermediate, Expert or custom boards, a safe first click, no-guess boards that never need luck, hints and best times.

GamesOpen
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2048 Game

Play 2048 free online: swipe or use the arrow keys to join tiles. Undo, AI hints, an auto-play AI, 3×3 to 6×6 boards and your best score saved. No sign-up.

GamesOpen