All tools
Every tool runs entirely in your browser — fast, private and free.
Developer Tools
JSON Formatter
Format, validate and beautify JSON online. Free JSON formatter with indentation options and key sorting — runs entirely in your browser.
Base64 Encode/Decode
Encode text to Base64 or decode Base64 to text instantly. Free online Base64 converter — no upload, everything stays in your browser.
URL Encode/Decode
Encode or decode URLs and query strings online. Free URL encoder/decoder for percent-encoding special characters.
Password Generator
Generate strong, random passwords with custom length, uppercase, numbers and symbols. Secure client-side generation — nothing leaves your device.
Hash Generator
Generate SHA-256, SHA-384, SHA-512 and SHA-1 hashes from text using the Web Crypto API. Fast, free and fully client-side.
Regex Tester
Test regular expressions against sample text with live match highlighting, flags and capture groups. Free online regex tester.
JWT Decoder
Decode JWT tokens online — view the header, payload and expiry instantly. Fully client-side, your token never leaves the browser.
CSS Minifier & Beautifier
Minify CSS to shrink file size or beautify it into readable, indented code. Free online CSS formatter — instant and client-side.
HTML Entity Encoder
Encode special characters as HTML entities or decode entities back to text. Handles named, decimal and hex entities.
SQL Formatter
Format SQL queries with uppercase keywords and clean clause indentation. Free online SQL beautifier — runs in your browser.
YAML Formatter
Format and validate YAML, or convert between YAML and JSON. Free online YAML formatter for configs, pipelines and Kubernetes files.
Binary/Hex/Decimal Converter
Convert numbers between binary, octal, decimal and hexadecimal instantly — with support for huge integers and 0x/0b prefixes.
Cron Expression Generator
Build and understand cron expressions with instant plain-English descriptions and common presets. Free cron schedule generator.
Regex Generator
Get battle-tested regular expressions for emails, URLs, IPs, dates, passwords and more — with flags and anchoring options, ready to copy.
UUID Generator
Generate cryptographically random version 4 UUIDs — one or a thousand at a time, with uppercase and no-dash options. Free and instant.
Timestamp Converter
Convert Unix timestamps to human-readable dates and back — auto-detects seconds vs milliseconds and shows local, UTC, ISO and relative time.
JavaScript Beautifier / Minifier
Beautify minified JavaScript into readable code, or minify it to shrink file size. Free online JS formatter — runs entirely in your browser.
HTML Formatter / Minifier
Beautify HTML into readable, indented markup or minify it to shrink file size. Free online HTML formatter, no upload required.
XML Formatter / Validator
Format XML into readable, indented markup or validate it for structural errors. Free online XML formatter and validator.
JSON Schema Validator
Validate JSON data against a JSON Schema and see exactly which fields fail, and why. Free online JSON Schema validator, runs client-side.
JSON to XML Converter
Convert JSON to XML or XML back to JSON, with attributes preserved. Free online JSON ↔ XML converter, no signup required.
Mock Data Generator
Generate realistic fake names, emails, addresses and more as JSON or CSV — perfect for testing and demos. Free online mock data generator.
URL Parser / Query String Splitter
Break a URL into its protocol, host, path, hash and individual query parameters. Free online URL parser, runs entirely client-side.
User-Agent Parser
Parse a User-Agent string into browser, engine, OS and device details instantly. Free online User-Agent parser and analyzer.
HTTP Status Code Lookup
Search every HTTP status code by number, name or keyword and see what it means. Free, searchable HTTP status code reference.
String Escape / Unescape
Escape or unescape strings for JavaScript, JSON, HTML, SQL or CSV contexts. Free online string escaping tool, runs in your browser.
Bcrypt Hash Generator / Verifier
Hash a password with bcrypt or verify a password against an existing bcrypt hash. Free online bcrypt tool, computed entirely client-side.
Chmod Calculator
Convert Unix file permissions between checkboxes, symbolic notation (rwxr-xr-x) and octal (755). Free online chmod calculator.
Text & String Tools
Word Counter
Count words, characters, sentences and paragraphs in real time. Free online word counter for essays, tweets and SEO content.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case and more. Instant, free case conversion.
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text by words, sentences or paragraphs for mockups and designs. Free and instant.
Text Diff
Compare two texts and highlight the differences line by line. Free online diff checker — runs entirely in your browser.
CSV to JSON
Convert CSV data to JSON online with header detection, custom delimiters and quoted-field support. Fast, free and private.
JSON to CSV
Convert a JSON array to CSV with automatic column detection and proper quoting. Free online JSON to CSV converter.
Markdown Preview
Write Markdown and see the rendered result live — headings, lists, links, code blocks and more. Free online Markdown previewer.
HTML to Markdown
Convert HTML to clean Markdown — headings, lists, links, images and code blocks. Free client-side HTML to Markdown converter.
Text to Slug
Turn any title into a clean, SEO-friendly URL slug — lowercase, hyphenated and free of accents or special characters.
Remove Line Breaks
Strip line breaks from text and join it into a single paragraph or line. Free online tool to remove line breaks — replace with a space, comma or nothing.
Whitespace / Extra Space Remover
Remove extra spaces, trim lines and delete blank lines from text in one click. Free online whitespace remover for messy pasted text.
Duplicate Line Remover
Delete repeated lines from a list while keeping the first or last occurrence. Free online duplicate line remover with case-insensitive matching.
Line Sorter
Sort lines A-Z, Z-A, by length, numerically or shuffle them randomly. Free online line sorter with duplicate and blank-line removal.
Find & Replace
Find and replace text instantly, with optional regex mode, case sensitivity and replace-all. Free online find and replace tool, runs in your browser.
Reverse Text / Words / Lines
Reverse text by character, word or line order instantly. Free online text reverser — flip a sentence, word order or a whole list of lines.
Upside Down Text Generator
Flip your text upside down using Unicode characters — paste it anywhere, from social bios to group chats. Free upside down text generator.
Fancy Text Generator
Turn plain text into bold, italic, script, double-struck and other Unicode font styles for bios and captions. Free fancy text generator, copy-paste ready.
Word Frequency Counter
Count how many times each word appears in your text, ranked by frequency with stop-word filtering. Free online word frequency counter.
Text Repeater
Repeat any text or phrase a set number of times with a custom separator. Free online text repeater — great for spam text, testing and social posts.
Morse Code Translator
Translate text to Morse code or decode Morse back to text, with audio playback of the dots and dashes. Free online Morse code translator.
Binary to Text Converter
Convert text to binary code or decode binary back to readable text, byte by byte. Free online binary to text converter and text to binary translator.
Plagiarism Checker (Text Compare)
Compare two texts for duplicate content — get an overall similarity score and a list of near-identical sentences. Private, client-side checking.
Math & Calculators
Basic Calculator
Free online calculator for quick everyday arithmetic — addition, subtraction, multiplication, division and percentages.
Percentage Calculator
Calculate percentages, percentage change and percentage of a number instantly. Free online percentage calculator.
BMI Calculator
Calculate your Body Mass Index from height and weight in metric or imperial units, with healthy range guidance.
Age Calculator
Calculate exact age in years, months and days from a date of birth — plus total days lived and days until the next birthday.
Date Difference Calculator
Calculate the exact time between two dates in years, months, weeks and days. Free date duration calculator for deadlines, anniversaries and planning.
Calorie Calculator
Estimate your daily calorie needs (TDEE) from age, height, weight and activity level — with targets for weight loss, maintenance and gain.
Scientific Calculator
A scientific calculator with trig, logarithm, exponent, factorial and root functions. Free online scientific calculator, works entirely in your browser.
GST Calculator
Add or remove GST from an amount at any Indian GST slab, with the CGST/SGST split shown. Free online GST calculator.
Tip Calculator
Calculate the tip on a bill and split the total between any number of people. Free online tip calculator and bill splitter.
Discount Calculator
Calculate the final price after one or more stacked percentage discounts, plus tax. Free online discount and sale price calculator.
Average / Statistics Calculator
Calculate mean, median, mode, range and standard deviation from a list of numbers. Free online statistics calculator.
Fraction Calculator
Add, subtract, multiply or divide fractions and mixed numbers, with results automatically simplified. Free online fraction calculator.
Ideal Weight Calculator
Estimate your ideal body weight using the Devine, Robinson, Miller and Hamwi formulas from your height and gender. Free ideal weight calculator.
Pregnancy Due Date Calculator
Estimate your due date and current gestational age from your last period, conception date or IVF transfer date. Free pregnancy due date calculator.
Converters
Length Converter
Convert length units instantly — meters, feet, inches, kilometers, miles and more. Free online length unit converter.
Weight Converter
Convert weight and mass units — kilograms, pounds, ounces, grams, stones and tons. Free online weight converter.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit and Kelvin instantly. Free online temperature converter.
Speed Converter
Convert speed units — km/h, mph, m/s, ft/s and knots. Free online speed converter for driving, running and sailing.
Currency Converter
Convert between 35+ world currencies with daily-updated exchange rates. Free currency converter — USD, EUR, GBP, INR, JPY and more.
Time Zone Converter
Convert any date and time between world time zones — perfect for scheduling meetings across New York, London, India and Tokyo.
File Size Converter
Convert file sizes between bits, bytes, KB, MB, GB, TB and their binary KiB/MiB/GiB equivalents. Understand why your 1 TB drive shows 931 GiB.
Image & Color Tools
QR Code Generator
Create QR codes for URLs, text and Wi-Fi instantly, then download as PNG. Free client-side QR code generator — no watermark.
Gradient Generator
Create beautiful CSS gradients — linear, radial or conic — with a live preview and copy-ready CSS code. Free online gradient generator.
Color Palette Generator
Generate harmonious 5-color palettes from any base color — analogous, complementary, triadic and more. Click any swatch to copy its hex code.
Image Resizer
Resize images to exact pixel dimensions and download as PNG, JPEG or WebP. Free image resizer that runs entirely in your browser — no upload.
Image to Base64
Convert any image to a Base64 string or data URL for embedding in HTML, CSS or JSON. Fully client-side — your image never leaves your device.
Favicon Generator
Create a favicon from text or an emoji and download every standard size — 16px to 512px, including Apple touch and Android icons.
Barcode Generator
Generate Code 128 barcodes from text or numbers and download as crisp SVG. Free client-side barcode maker — no watermark, no upload.
Image Compressor
Compress images to WebP or JPEG with adjustable quality and see the size savings instantly. 100% local — photos never leave your device.
Base64 to Image
Paste a Base64 string or data URL and instantly preview and download the image. Auto-detects PNG, JPEG, GIF, WebP, SVG and BMP.
Color Converter
Convert colors between HEX and RGB with a live picker and instant preview. Free online color converter for designers and developers.
Image Format Converter
Convert images between PNG, JPEG, WebP and AVIF right in your browser. Free image converter with adjustable quality — no upload, no watermark.
Image Cropper
Crop any image with drag-to-resize precision and ready-made aspect ratios for square, widescreen and passport photos. Runs locally in your browser.
Image Color Picker
Click anywhere on an image to pick its exact color, or extract the dominant color palette automatically. Free color picker from image, no upload.
EXIF Viewer & Remover
View every EXIF, GPS and camera detail hidden in a photo, then strip it all out before you share the file. Free EXIF viewer and metadata remover.
Image Rotator & Flipper
Rotate an image 90°, 180° or any custom angle, and flip it horizontally or vertically. Free image rotator with a live preview, no upload.
Meme Generator
Add classic top and bottom captions to any image and download your meme instantly. Free meme maker with the Impact-style outline text, no watermark.
SVG to PNG Converter
Convert an SVG file to a crisp PNG at 1x–8x scale with a transparent or solid background. Free SVG to PNG converter, runs entirely in your browser.
Image Watermark
Stamp a text or logo watermark onto any image with control over opacity, size and position, including a tiled repeat mode. No upload required.
Photo Filters
Apply grayscale, sepia, brightness, contrast, saturation and blur filters to any photo with live preview presets. Free photo editor, no upload.
Blur / Pixelate Tool
Select a region of an image and pixelate or blur it to redact faces, license plates or sensitive text before sharing a screenshot.
Drawing Board / Whiteboard
A free online whiteboard for quick sketches and diagrams — pick a color and brush size, then download your drawing as a PNG.
Signature Maker
Create a signature by drawing it with your mouse or finger, or by typing your name in a script font — download as a transparent PNG.
Time & Productivity
Stopwatch
Free online stopwatch with lap times and millisecond precision. Start, pause and reset — no install, works in any browser.
Countdown Timer
Free online countdown timer — set hours, minutes and seconds and get an alert when time is up. Great for cooking, study and workouts.
World Clock
See the current time in cities around the world at a glance. Free online world clock with live seconds and UTC offsets.
Invoice Generator
Create a professional invoice in your browser — line items, tax, discount and totals — then print or save as PDF. Free, no signup, no watermark.
Online Notepad
A distraction-free notepad that auto-saves in your browser as you type, with a live word count and one-click .txt download.
To-Do List
A simple, private to-do list that saves your tasks in your browser — no account, no sync, no clutter. Free online to-do list.
Pomodoro Timer
A free online Pomodoro timer with focus and break cycles, a session counter, notifications and sound when time's up.
Alarm Clock & Countdown to Date
Set a browser alarm for a specific time, or count down to any future date — both with a sound and notification when it's time.
PDF Tools
Merge PDF
Combine multiple PDF files into one, in any order you choose. Free PDF merger that runs entirely in your browser — your files are never uploaded.
Split PDF
Extract specific pages or page ranges from a PDF into a new file. Free online PDF splitter — 100% client-side, no upload.
Compress PDF
Shrink PDF file size by re-encoding pages at an adjustable quality level. Free PDF compressor that works fully offline in your browser.
Rotate PDF
Rotate every page or individual pages of a PDF by 90°, 180° or 270° with a live thumbnail preview. Free and fully client-side.
Delete & Reorder PDF Pages
Drag to reorder pages or delete the ones you don't need, with a thumbnail preview of every page. Free PDF page organizer, runs locally.
Images to PDF
Turn JPG or PNG images into a single PDF, in the order you choose, with page size and margin options. Free image to PDF converter.
PDF to Images
Convert every page of a PDF into a PNG or JPG image and download them individually or as a ZIP. Free, fully client-side conversion.
PDF to Text
Extract all readable text from a PDF instantly — copy it or download as a .txt file. Free text extractor that never uploads your document.
PDF Watermark & Page Numbers
Stamp a text watermark and/or page numbers across every page of a PDF, with control over position, size, rotation and opacity.
Protect & Unlock PDF
Add a password to a PDF to restrict opening or editing, or remove a password when you already know it. Free, client-side PDF security.
SEO & Marketing Tools
Meta Tag Generator
Generate title, description, Open Graph and Twitter Card meta tags with a live preview and length warnings. Free online meta tag generator.
SERP Snippet Preview
See how your page title and meta description will look in Google search results, on desktop and mobile, before you publish.
Open Graph Preview
Preview how your link will appear when shared on Facebook, Twitter/X and LinkedIn, and generate the Open Graph tags to match.
UTM Link Builder
Build campaign tracking URLs with UTM source, medium, campaign, term and content parameters. Free UTM builder with link history.
Robots.txt Generator
Generate a robots.txt file with allow/disallow rules, sitemap reference and crawl-delay, plus a basic syntax validator.
Keyword Density Checker
Check how often a focus keyword appears in your content and see the top 1, 2 and 3-word phrases by density. Free SEO keyword density tool.
Social Media Character Counter
Count characters against X, Instagram, LinkedIn, YouTube and meta description limits at once, with remaining-character indicators.
Email Signature Generator
Create a professional, table-based HTML email signature with your name, title, contact details and social links — ready to paste into Gmail or Outlook.
Hashtag Generator
Get a ready-to-paste block of relevant hashtags for Instagram, TikTok and X by niche — business, fitness, travel, food and more.
YouTube Thumbnail Downloader
Download any YouTube video's thumbnail in every available resolution, from 120x90 up to full 1280x720 HD.
Media & Device Tools
Typing Speed Test (WPM)
Test your typing speed and accuracy against a random passage — see your words per minute update live. Free online typing test, no signup.
Click Speed Test (CPS)
Measure how many clicks per second you can make in 5, 10, 15 or 60 seconds. Free online CPS test with a saved best score per duration.
Reaction Time Test
Test your visual reaction time in milliseconds — click as soon as the box turns green. Free online reaction time test with a running average.
Screen Recorder
Record your screen and download it as a WebM video — no install, no account, no upload. Free online screen recorder that runs entirely in your browser.
Voice Recorder
Record audio from your microphone and download it instantly, with multiple takes kept in one session. Free online voice recorder, nothing is uploaded.
Webcam Test
Check that your webcam works and see its live resolution, frame rate and aspect ratio. Free online webcam test with snapshot download.
Microphone Test
Check that your microphone works with a live waveform and volume level meter. Free online mic test, works with any input device.
Keyboard Tester
Test every key on your keyboard and check for ghosting or rollover issues with a live visual layout. Free online keyboard tester.
Fun & Random Tools
Random Number Generator
Generate random numbers in any range, with optional no-repeat and cryptographically secure modes. Free online random number generator.
Coin Flip
Flip a virtual coin online with an animated heads-or-tails result and a running tally. Free online coin flipper, no signup.
Dice Roller
Roll one or many dice online — d4, d6, d8, d10, d12 and d20 — with the total shown automatically. Free online dice roller for tabletop games.
Wheel Spinner / Random Name Picker
Spin a wheel to randomly pick a name, option or winner from your own editable list. Free online wheel spinner and random name picker.