Token Builder

Build JWT tokens from header and payload

Build JWT tokens by editing the header and payload. Optionally sign with an HS256 secret. Signing stays in your browser — use for testing only.

Header

Claims helpers

Subject (sub)

Expires in (seconds)

Secret never leaves this page. Leave empty for an unsigned token.

Building token…

Related tools

JWT Decoder

Decode JWT tokens, view claims, and verify HS256 signatures

JSON Formatter

Format, minify, validate JSON — convert between formats

JSON Cleaner

Clean over-escaped and broken JSON from logs and observation tools