Developer tools, instant.
Free, fast, 100% client-side. Your data never leaves your browser. No signups, no tracking.
JSON Formatter
Format, validate and minify JSON instantly.
Base64 Encoder & Decoder
Encode text to Base64 or decode it back. URL-safe variant supported.
UUID Generator
Generate UUID v4 values, single or up to 1000 in bulk.
URL Encoder & Decoder
Percent-encode URL components or decode encoded URLs.
JWT Decoder
Decode JSON Web Tokens and inspect header, payload and signature.
Hash Generator
Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes instantly.
Timestamp Converter
Convert Unix epoch (s or ms) to ISO, UTC and local dates.