Free Online Tools, Processed Locally.
No signups, no uploads. Everything runs directly in your browser for maximum privacy and speed.
Developer Tools
JSON Formatter & Validator
Free online JSON formatter, validator, and beautifier. Format your JSON string instantly in your browser.
Regex Tester & Debugger
Test, debug, and evaluate Regular Expressions (RegEx) instantly in your browser.
Base64 Encoder/Decoder
Free online Base64 encoder and decoder. Convert text to Base64 format and vice versa instantly in your browser.
URL Encoder/Decoder
Encode and decode URLs and URI components online for free. Safely process URL parameters.
UUID / GUID Generator
Generate bulk random UUIDs (Universally Unique Identifiers) instantly online.
Color Converter
Convert colors between HEX, RGB, HSL, and CMYK formats. Free online color picker and conversion tool.
JWT Decoder
Decode JSON Web Tokens (JWT) locally to view header and payload claims securely.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates, and vice versa.
HTML Entity Encoder/Decoder
Encode and decode HTML entities safely to prevent XSS and format code snippets.
SQL Formatter
Beautify and format messy SQL queries instantly online.
XML Formatter
Format, beautify, and indent XML data locally in your browser.
CSS Box Shadow Generator
Visually create and copy CSS box-shadow code with an interactive preview.
CSS Formatter / Minifier
Beautify messy CSS code or minify it to save bandwidth.
MDB Viewer
Free online MDB Viewer. Open and read Microsoft Access Database (.mdb) files directly in your browser. No uploads, 100% private and secure.
Cron Parser & Generator
Parse, explain, validate and visually build standard crontab configurations.
JSON to YAML Converter
Convert JSON strings to YAML configurations and vice versa with custom indentation settings.
User Agent Parser
Parse User Agent strings online. Instantly detect browser, operating system, device, CPU, and rendering engine details.
JSON to Code Converter
Compile JSON strings into clean Go Structs or TypeScript Interfaces instantly.
JSON to CSV Converter
Convert JSON structures to tabular CSV files and vice versa with custom delimiters.
Hex to ASCII/Text Converter
Convert plain text to hexadecimal bytes and vice versa with custom delimiters.
JWT Generator
Generate JSON Web Tokens (JWT) locally with custom headers, payloads, and signatures.
QR Code Generator & Reader
Generate QR codes with customizable sizes, colors, and error correction levels, or upload/paste QR code images to decode them instantly.
SVG Optimizer
Optimize SVG markup client-side. Clean metadata, empty tags, namespaces, and round coordinates precision.
HTML Formatter & Beautifier
Format, beautify, and minify HTML code instantly in your browser. 100% local processing for complete privacy.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal (bases 2-36) instantly in your browser.
IP Subnet Calculator
Calculate IPv4 subnets from CIDR notation. Network address, broadcast, host count, and mask conversion.
JSONPath Tester
Test and evaluate JSONPath expressions against your JSON data with live match highlighting.
PWA Manifest Generator
Generate PWA manifest.json files visually with live preview and one-click download.
Meta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Card tags with one-click copy.
CSS Gradient Generator
Visually create linear and radial CSS gradients with multiple color stops and copy the CSS code.
CSS Flexbox Generator
Generate CSS Flexbox layouts visually. Adjust justify-content, align-items, and flex-wrap with live preview.
CSS Grid Generator
Generate CSS Grid layouts visually. Define columns, rows, and gaps with a real-time preview and copy CSS.
Color Palette Generator
Generate beautiful color palettes online. Create random palettes or pick from a base color with HEX, RGB, and HSL codes.
robots.txt Generator
Generate a robots.txt file for your website. Control crawler access with rules for User-agent, Allow, and Disallow.
JavaScript Formatter & Minifier
Free online JavaScript formatter and minifier. Beautify or minify JS with Prettier, configurable indent and quote style.
URL Parser
Free online URL parser. Break a URL into protocol, host, port, path, query and hash, edit query params and rebuild.
CSS Unit Converter
Free online CSS unit converter. Convert between px, rem, em, pt, vw, vh and % with configurable root and viewport sizes.
HTTP Status Codes
Free online HTTP status code reference. Look up the meaning of any HTTP status code with examples and usage tips.
MIME Types
Free online MIME type reference. Look up file extensions and their MIME types, with common and official types.
JSON Diff
Free online JSON diff tool. Compare two JSON objects side by side and highlight added, removed and changed values.
Image Tools
Image Compressor
Compress JPEG, PNG, and WebP images online for free without losing quality. 100% local browser processing.
Image Format Converter
Convert images locally between PNG, JPG, and WEBP formats.
Image to Base64 Converter
Convert images to Base64 data URIs or decode Base64 strings back to images.
Image Resizer
Resize images locally to any dimensions with JPG, PNG, or WebP output. Zero uploads, complete privacy.
EXIF Data Viewer
Extract and view EXIF metadata from JPEG and TIFF images locally. Camera info, GPS, timestamps.
Image Watermark Tool
Add text or image watermarks to your photos online for free. Protect your images with custom watermarks directly in your browser.
Color Picker from Image
Pick exact colors from any image online. Upload an image and click to get HEX, RGB, and HSL color codes instantly.
Favicon Generator
Generate favicons online for free. Convert your image to ICO, PNG, and SVG favicons in multiple sizes for your website.
Image Cropper
Free online image cropper. Crop images with draggable selection and aspect ratio presets directly in your browser.
Image Filter & Photo Editor
Free online image filter and photo editor. Adjust brightness, contrast, saturation and more directly in your browser.
Image to ASCII Art
Convert any image to ASCII art online for free. Custom character sets, adjustable width and color mode.
Image Rotator
Free online image rotator. Rotate JPG, PNG, WebP images by any angle quickly and privately in your browser.
Metadata Remover
Free online EXIF and metadata remover. Strip location, camera info and other metadata from your photos for privacy.
Color Extractor
Free online color extractor. Pull dominant colors and a color palette from any image, with HEX, RGB and HSL values.
Calculators
Mortgage Calculator
Calculate your monthly mortgage payments quickly and easily. See how much you will pay in principal and interest.
Unit Converter
Free online unit converter for Length, Weight, Temperature, Area, and Volume.
Percentage Calculator
Calculate percentages easily. Find the percentage of a number, percentage increase/decrease.
Date Difference Calculator
Calculate the difference between two dates in days, weeks, months, or years, plus business days.
BMI Calculator
Calculate your Body Mass Index (BMI) in metric or imperial units with health category feedback.
Time Zone Converter
Convert times between any IANA time zones with real-time results and quick-pick common zones.
Scientific Calculator
Free online scientific calculator with trigonometry, logarithms, exponents, and memory functions.
Random Number Generator
Generate random numbers online for free. Pick unique numbers in a range with one click.
Age Calculator
Free online age calculator. Compute exact age in years, months and days, plus totals and days until your next birthday.
Statistics Calculator
Free online statistics calculator. Mean, median, mode, variance, standard deviation, quartiles and more for any dataset.
GCD & LCM Calculator
Free online GCD and LCM calculator. Greatest common divisor and least common multiple of multiple numbers with steps.
Compound Interest Calculator
Free online compound interest calculator. Project savings growth with regular contributions and flexible compounding.
Tip Calculator
Free online tip calculator. Calculate tips, split bills among friends and round up totals quickly and easily.
Permutation & Combination Calculator
Free online permutation and combination calculator. Compute nPr and nCr for any n and r with steps and BigInt support.
Prime Number Tool
Free online prime number tool. Check if a number is prime, find the nth prime, and list primes in any range.
Fraction Calculator
Free online fraction calculator. Add, subtract, multiply and divide fractions with step-by-step simplification.
Security Tools
Password Generator
Generate strong, secure, and random passwords locally in your browser. Complete privacy guaranteed.
Hash Generator
Calculate MD5, SHA-1, SHA-256, and SHA-512 hashes from text locally in your browser.
Bcrypt Generator & Verifier
Securely hash plaintext passwords using bcrypt with adjustable cost rounds, or verify hashes in real-time.
TOTP Authenticator Code Generator
Generate 6-digit TOTP authenticator codes locally with a 30-second countdown. Supports otpauth URIs and Base32 secrets.
HMAC Generator
Compute HMAC-SHA256/384/512 hashes from a message and secret key locally in your browser.
Password Strength Checker
Check password strength online instantly. Estimate crack time and get improvement tips for stronger passwords.
AES Encrypt & Decrypt
Encrypt and decrypt text with AES-256 online. Use a password to secure your data with industry-standard encryption.
File Hash Checker
Free online file hash checker. Compute SHA-1, SHA-256, SHA-384 and SHA-512 locally with drag-and-drop and progress.
Image Steganography Tool
Free online image steganography tool. Hide text in PNG images with LSB encoding and optional AES-GCM password protection.
RSA Key Generator
Free online RSA key pair generator. Create 1024 to 4096 bit RSA public and private keys securely in your browser.
Hash Identifier
Free online hash identifier. Detect the type of a hash string (MD5, SHA-1, SHA-256, bcrypt and more) instantly.
Text Tools
Word & Character Counter
Free online word counter, character counter, and text statistics tool.
Lorem Ipsum Generator
Generate standard Lorem Ipsum placeholder text for your web designs, mockups, and layouts.
Case Converter
Convert text to lowercase, UPPERCASE, Title Case, camelCase, and more.
Text Diff Checker
Compare two text documents and highlight the differences (added and removed lines).
Markdown Editor & Previewer
Write, preview, and format Markdown text in real-time. Export Markdown to clean HTML or print to PDF.
HTML to Text Converter
Extract text from HTML code and format it as readable Markdown automatically.
Slug Generator
Convert text to URL-safe slugs with Unicode normalization and customizable separators.
Remove Duplicate Lines
Remove duplicate lines from text, sort lines, and strip blank lines instantly in your browser.
Find & Replace Text
Find and replace text using regular expressions with capture group references and live preview.
Text to Speech
Convert text to natural-sounding speech online for free. Adjust voice, speed, and pitch with browser-built TTS.
Morse Code Translator
Translate text to Morse code and vice versa. Play Morse code audio and copy the result instantly.
Text Reverser
Reverse text online instantly. Flip text character by character, by words, or by lines with one click.
Text Repeater
Repeat any text up to 10,000 times online for free. Add separators and a counter variable, then copy instantly.
Tab to Spaces Converter
Convert tabs to spaces and spaces to tabs online for free. Configurable width and leading-whitespace-only mode.
Speech to Text
Free online speech to text transcriber. Real-time transcription in your browser with editable transcript and download.
Binary Translator
Free online binary translator. Convert text to binary and binary to text instantly, supporting ASCII and Unicode.
Fancy Text Generator
Free online fancy text generator. Create stylish text with unicode fonts for social media, profiles and messages.
Text Sorter
Free online text line sorter. Sort lines alphabetically, numerically, by length or randomly, with deduplication.