Privacy-first utilities. All computations run 100% in your browser. No data is ever sent to the server.
Generate UUIDv4 identifiers individually or in bulk.
Create strong passwords with custom length and character sets.
Compare two text inputs side-by-side with highlighting.
Compute MD5, SHA-1, SHA-256, SHA-512 hashes via Web Crypto.
Beautify, minify, and validate JSON strings instantly.
Decode JWT header and payload in your browser.
Encode/decode Base64 entirely in the browser.
Test regular expressions with live match highlighting and flags.
Convert Unix timestamps to human-readable dates and vice versa.
Encode and decode URLs, query parameters, and components.
Convert between HEX, RGB, and HSL color formats with live preview.
Convert images to Base64/Data URIs and render Base64 as images.
Build and explain Cron schedule expressions in human-readable terms.
Visually design CSS box-shadows and grab Tailwind v4 classes.
Prettify, format, or compress SQL queries with clean tokenization.
Generate TypeScript types or Zod schemas from JSON.
Convert YAML to JSON and JSON to YAML bidirectionally.
Inspect JavaScript keyboard events and keycodes in real-time.