UD5 Toolkit
JWT Viewer & Verifier - Online Decode & Check Signature
Paste a JSON Web Token and decode its header and payload. Verify signature if you provide the secret. Fully local.
Tag: Token Generator - Random API Keys
5+ toolsText Chunk Splitter - Online Divide by Character Count
Split a long text into blocks of N characters or words. Perfect for token limits or social media threading.
Random Crypto Key Generator - Online Create API Tokens & Secrets
Generate strong random strings for API tokens, session secrets, or encryption keys. Uses crypto.getRandomValues().
JWT Debugger - Online JSON Web Token Decoder & Verifier
Decode the header and payload of a JSON Web Token (JWT) without verifying the signature. Inspect claims securely on the client side. Great for developers.
Random String Generator - Online Alphanumeric Randomizer
Create random strings of any length using custom character sets. Perfect for generating API tokens, salts, and unique codes. Fully client-side secure.