JSON Formatter
Format, validate and syntax-highlight JSON instantly. Also minifies. Runs in your browser.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 to plain text. Runs entirely in your browser.
Colour Picker & Converter
Pick any colour and convert between HEX, RGB and HSL. Generates shades and complementary palettes.
Number Base Converter
Convert numbers between Decimal, Binary, Hexadecimal and Octal instantly.
CSS Minifier
Minify CSS by removing whitespace and comments. See exact file size savings instantly.
Unix Timestamp Converter
Convert Unix timestamps to readable dates or dates to timestamps. Includes a live Unix clock.
Regex Tester
Test regular expressions with live match highlighting, group capture, and a built-in cheat sheet.
HTML Entity Encoder
Encode and decode HTML entities. Full entity reference table included.
QR Code Generator
Generate QR codes from any text or URL. Customise size, colours and error correction. Download as PNG or SVG instantly.
World Clock
See the current time in cities around the world. Add any city, see business hours, time differences and live updating clocks.
UUID Generator
Generate UUIDs instantly. Version 4 (random), Version 1 (timestamp) and Nil. Bulk generate up to 100 at once. Multiple formats including no hyphens, uppercase and URN.
Countdown Timer
Set a countdown timer for any duration or count down to a specific date and time. Progress ring, sound alert, browser tab countdown and loop option included.
White Noise Studio
Free white noise generator with 12 sounds including white, pink and brown noise, rain, ocean, fire, forest, fan and more. Mix sounds, set a sleep timer and fade out gradually.