Dev Tools
Dead-simple utilities that run entirely in your browser.
Base64 Encode / Decode
Unicode-safe Base64 with URL-safe alphabet and padding options.
/dev-tools/base64URL Encoder / Decoder
Percent-encode components or full URIs, and decode them back.
/dev-tools/url-encoderPassword Generator
CSPRNG passwords with charset control and entropy strength meter.
/dev-tools/password-generatorUUID Generator
RFC 9562 UUIDs — every version from v1 to v8, sortable time-based included.
/dev-tools/uuid-generatorHash Generator
SHA-1/256/384/512 digests with an expected-hash comparison.
/dev-tools/hashJSON Formatter
Pretty-print or minify JSON with key sorting and validation.
/dev-tools/json-formatterJWT Decoder
Inspect JWT headers, payloads and expiry claims instantly.
/dev-tools/jwt-decoderTimestamp Converter
Unix seconds/milliseconds ↔ ISO dates with live current time.
/dev-tools/timestamp-converter8 tools · everything is computed locally, nothing leaves your device.