Tools / Security
Encoding & Hash
Base64/URL, gzip, SHA, HMAC, HTML entities, data URI. Free, runs entirely in your browser—nothing is uploaded.
What you can do
- Base64/URL
- Gzip
- SHA
- HMAC
- HTML entities
- Data URI
Private by design
Encoding & Hash runs entirely in your browser. Your input is never uploaded, there is no sign-up, and the tool keeps working offline after the first visit.
Related tools
- Base Converters — Text, hex, Base64/32/58, binary, data URI, hex dump, number bases.
- JWT Lab — Decode, sign HS/RS/ES/PS, verify JWK/JWKS, inspect claims.
- URL Inspector — Parse/build URLs, edit query, encode components.