Developer tools
A toolbox for developers: format and validate JSON, encode and decode Base64 and URLs, generate UUIDs and hashes, convert timestamps and decode JWTs. Fast, private and free.
JSON Formatter
Format, beautify and minify JSON instantly.
JSON Validator
Validate JSON and pinpoint syntax errors.
Base64 Encoder
Encode text to Base64 (UTF-8 safe).
Base64 Decoder
Decode Base64 back to readable text.
URL Encoder
Percent-encode text for safe use in URLs.
URL Decoder
Decode percent-encoded URLs back to text.
UUID Generator
Generate random v4 UUIDs in bulk.
Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes.
Timestamp Converter
Convert Unix timestamps to dates and back.
JWT Decoder
Decode and inspect JWT header and payload claims.