Developer Tools
Format, validate, and encode data — no data ever leaves your device.
8 tools
JSON Formatter / ValidatorFormat, minify, and validate JSON with precise error locations.
JSON DiffCompare two JSON documents and see exactly what changed — keys, values, structure.
Regex TesterTest regular expressions live with match highlighting, flags, and capture groups.
Base64 Encode / DecodeEncode and decode Base64 with correct UTF-8 handling.
URL Encoder / DecoderEncode and decode URLs and query strings with percent-encoding.
JWT DecoderDecode a JSON Web Token's header and payload and check its expiry.
Hash GeneratorCompute SHA-1, SHA-256, SHA-384 & SHA-512 hashes of any text.
Timestamp ConverterConvert Unix timestamps to dates and back, in seconds or milliseconds.