All Tools
All tools organized by category.
Generators
QR Code Generator
Generate QR codes quickly and easily from any text or URL.
Use Tool →Color Picker
Pick a color and get values in multiple formats instantly.
Use Tool →Password Generator
Generate secure passwords with custom patterns, character sets, and exclusion rules. All processing happens in your browser.
Use Tool →Passphrase Generator
Generate strong, memorable passphrases from random words. Customize word count, separator, and capitalization. 100%% browser-based.
Use Tool →Token Generator
Generate cryptographically secure tokens in Hex, Base64, Base58, or URL-safe format. All processing happens in your browser.
Use Tool →Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512, SHA-3 hashes and HMAC from text or files. 100%% browser-based, nothing sent to servers.
Use Tool →Hash Compare
Compare two hash values side by side with character-level diff highlighting. Verify file integrity instantly.
Use Tool →UUID / ID Generator
Generate UUID v4, UUID v7, ULID, and NanoID. Batch generation, timestamp parsing, and configurable options. 100%% browser-based.
Use Tool →Image Tools
Background Remover
Remove backgrounds from images directly in your browser. No server upload, completely private.
Use Tool →Image Color Picker
Upload an image and click anywhere to pick colors.
Use Tool →Image Resizer / Compressor / Converter
Resize, compress, and convert images online. Pixel, percentage, and fit-within modes. Social media presets, batch processing, and format conversion. 100%% browser-based.
Use Tool →Image Annotation Editor
Draw rectangles and polygons on images, tag labels, and export to JSON, COCO, or YOLO format. Real-time JSON editor sync. 100%% browser-based.
Use Tool →Health & Fitness
BMI Calculator
Calculate your Body Mass Index and see where you stand on international health standards.
Use Tool →BMR / TDEE Calculator
Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure. Three formulas, five activity levels. 100%% browser-based.
Use Tool →Weight Loss Predictor
Predict your weight loss over time based on calorie intake. Adaptive BMR recalculation produces a realistic decay curve. 100%% browser-based.
Use Tool →Finance
Compound Interest Calculator
Calculate how your savings and investments grow over time with compound interest.
Use Tool →Investment Return Calculator
Calculate investment returns with inflation adjustment and after-tax analysis. See growth charts and yearly breakdown.
Use Tool →FIRE Calculator
Calculate when you can achieve financial independence and retire early. See your FIRE number, savings rate, and projected timeline.
Use Tool →Retirement Calculator
Plan your retirement with confidence. Calculate how much you need to save, see your pension gap, and visualize your path to a secure retirement.
Use Tool →Loan Calculator
Calculate monthly payments, total interest, and view a full amortization schedule for any loan.
Use Tool →Math
Percentage Calculator
Calculate percentages, increases, decreases, discounts, and reverse percentages in one place.
Use Tool →Percentage Increase Calculator
Calculate the percentage increase or decrease between two values with visual comparison.
Use Tool →Percent Off Calculator
Calculate the final price and savings after a percentage discount.
Use Tool →Reverse Percentage Calculator
Find the original price before a discount was applied.
Use Tool →Date & Time
World Timezone Map
Interactive world map with real-time day/night boundary and local times for major cities. Powered by your browser clock — no server needed.
Use Tool →World Timezone List
Compare time differences between cities worldwide with an interactive timezone list.
Use Tool →Age Calculator
Calculate exact age, days until next birthday, age difference, and more from any date of birth.
Use Tool →Age Difference Calculator
Compare two dates of birth and see the exact age gap in years, months, and days.
Use Tool →Birthday Countdown Calculator
Find out how many days until your next birthday with a visual countdown.
Use Tool →Date of Birth Calculator
Reverse-calculate your date of birth from your current age.
Use Tool →Converters
Unit Converter
Convert length, weight, temperature, area, volume, speed, data size and currency.
Use Tool →Length Converter
Convert between meters, feet, miles, kilometers and more.
Use Tool →Weight Converter
Convert between kilograms, pounds, ounces, grams and more.
Use Tool →Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin instantly.
Use Tool →Currency Converter
Convert currencies with live ECB exchange rates.
Use Tool →Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, and more. Custom rules for camelCase, snake_case, and advanced transformations. 100%% browser-based.
Use Tool →Analyzers
Network Tools
Developer Tools
JSON Formatter / Validator
Format, validate, and minify JSON in your browser. Syntax highlighting, line numbers, and error reporting. No data sent to server.
Use Tool →Base64 Encoder / Decoder
Encode, decode, and validate Base64 in your browser. Supports text, files, images, Data URLs, and URL-safe Base64. No data sent to server.
Use Tool →JWT Decoder / Inspector
Decode, inspect, and verify JWT tokens in your browser. View header, payload, claims, expiration, and verify HMAC signatures. No data sent to server.
Use Tool →Regex Tester / Editor
Test, visualize, replace, and explain regular expressions in your browser. Match highlighting, capture groups, replacement preview, pattern explainer, and cheat sheet. No data sent to server.
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