Security
Security-related tools such as hashing, inspecting JWT contents and generating passwords. All input is processed in your browser and never sent to a server.
5 tools・Ordered by measured page views over the last 90 days.
Password Generator
Generate strong random passwords with a secure RNG; choose length and character types, then copy.
JWT Decoder
Decode a JWT's header and payload and pretty-print claims like exp.
Hash Generator (SHA)
Compute SHA-1/256/384/512 hashes from text in the browser via Web Crypto.
Find the Source of a Hash
Find the value behind a hash by candidate-list matching or a constrained pattern search. SHA family, CRC32 and FNV-1a. Runs in your browser.
Basic Auth Header Generator
Build an Authorization: Basic header from a user name and password, with curl and fetch snippets, and decode Basic strings back.