Everyday tools that run on your device, not our server.
Twenty small utilities for writing, converting, generating and calculating — every one of them works entirely in this page. Nothing you type or upload ever leaves your browser.
Word & Character Counter
Live counts as you type.
Password Generator
Set length and character types.
QR Code Generator
Text or URL, up to 42 characters.
Age Calculator
Exact age from a birth date.
BMI Calculator
Body mass index from height and weight.
Unit Converter
Length, weight and temperature.
JSON Formatter & Validator
Pretty-print or validate JSON.
Case Converter
Upper, lower, title and sentence case.
Lorem Ipsum Generator
Placeholder text for mockups.
Base64 Encode / Decode
Convert text to and from Base64.
URL Encoder / Decoder
Percent-encode query strings and paths.
Percentage Calculator
What is X% of Y — and percent change.
Color Palette Generator
Five-color palette from one base color.
CSS Gradient Generator
Two-color linear gradient with live CSS.
Hash Generator
SHA-1 / SHA-256 / SHA-512, via the browser's built-in crypto.
Timestamp Converter
Unix epoch to readable date, and back.
Random Number Generator
Pick a random whole number in a range.
Slug Generator
Turn a title into a URL-friendly slug.
Image to Base64
Convert an image to a data URI. Stays on your device.
Markdown to HTML
Basic Markdown — headers, bold, links, lists.