Geekjoy Tools — free tools for developers and QA
Format JSON, generate UUIDs, secrets and keys, decode JWTs, test regular expressions and compare texts — right in your browser, with no sign-up and nothing to install.
Tools
- Data
JSON Toolkit
Validate, format and minify JSON, explore it as a tree and check it against a JSON Schema.Open - Data
UUID Generator
Generate UUID v4 and v7 in bulk and validate any UUID, including its version.Open - Security
JWT Decoder
Decode a JWT: header, payload, exp/iat/nbf claims and local signature checks for HS256, RS256, ES256.Open - Security
Secret & Key Generator
Generate secrets, API keys, passwords and RSA/ECDSA key pairs with the Web Crypto API.Open - Text
Regex Tester
Test JavaScript regular expressions: matches, groups, replacement and protection from runaway patterns.Open - Text
Diff Checker
Compare texts and JSON: by line, word or character, side by side or inline, with unified diff export.Open
Why Geekjoy Tools
Free
No limits, subscriptions or hidden plans.
No sign-up
Open a page and get to work. A Geekjoy account is only needed for TMS.
Nothing to install
Everything runs in the browser: no downloads required.
Your data stays with you
Processing is local. JSON, tokens and texts are never sent to a server.
Test management without chaos — Geekjoy
Test cases, checklists, test plans, runs and reports in one workspace. Geekjoy Tools is part of the Geekjoy ecosystem.