The tools you need,
without the clutter.
Instant calculators and converters. Clean, fast, and mobile‑friendly. No popups. No signup walls. Just results.
All Tools
Browse all →Percentage Calculator
Find X% of Y, what percent X is of Y, or percentage change.
Age Calculator
Calculate your exact age in years, months, and days.
Celsius ↔ Fahrenheit
Convert between Celsius and Fahrenheit instantly.
MM ↔ Inches
Convert millimeters to inches and back.
KG ↔ LBS
Convert kilograms to pounds and back.
Military Time Converter
Convert between military time and standard 12-hour time.
JSON Formatter
Format, beautify, and validate JSON instantly.
UUID Generator
Generate random UUID v4 values, single or bulk.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 to plain text.
Color Picker
Pick a color and convert between HEX, RGB, and HSL.
TDEE Calculator
Calculate your daily calorie needs with the Mifflin-St Jeor formula.
JWT Decoder
Decode and inspect JSON Web Tokens. View header, payload, and expiration.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly.
URL Encoder / Decoder
Encode or decode URLs and query string parameters instantly.
SQL Formatter
Format, beautify, and minify SQL queries instantly.
Cron Expression Builder
Build, parse, and test cron expressions with a visual editor.
Unix Timestamp Converter
Convert Unix timestamps to dates and dates to timestamps.
Chmod Calculator
Calculate Linux file permissions in numeric and symbolic notation.
YAML to JSON Converter
Convert between YAML and JSON formats instantly.
QR Code Generator
Generate QR codes for URLs, text, and more. Customize colors and download.
Case Converter
Convert text between camelCase, snake_case, PascalCase, kebab-case, and more.
JSON to CSV Converter
Convert JSON to CSV and CSV to JSON with custom delimiters.
YAML Formatter
Format, beautify, validate, and minify YAML instantly.
HTML Formatter
Format, beautify, and minify HTML with proper indentation.