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Getting Started Articles & Guides

Quick-start guides for developers new to JWTs. Generate your first secret, sign a token, and verify it — with copy-paste code for Node.js, Python, and Go.

·9 min read

Base64 and Base64URL Encoding in JWTs Explained

Understand why JWTs use Base64URL encoding, how it differs from standard Base64, and how to encode and decode JWT parts correctly in any language.

·9 min read

UUID v4 Generator Guide — Random IDs for APIs and Databases

Learn how UUID v4 works, when to use random identifiers in APIs and databases, and how to generate RFC 4122 compliant UUIDs in your browser and backend code.

·4 min read

How to Decode a JWT Without the Secret (And Why Verification Still Matters)

JWT headers and payloads are Base64URL-encoded, not encrypted. Learn how to decode tokens without a secret, what you can and cannot trust, and why signature verification is mandatory.

·6 min read

JWT for Beginners: A Complete Guide to JSON Web Tokens

Everything a developer needs to understand JWTs — structure, signing, validation, security pitfalls, and free tools to get started.

·8 min read

What is JWT? From Concept to Structure Explained

A complete introduction to JSON Web Tokens — structure, claims, and how they work in authentication.

Related Tools

JWT Secret Generator
Generate your first JWT secret.
JWT Encoder
Sign your first JWT token.
JWT Validator
Verify your signed JWT.

Related Glossary Terms

JSON Web Token (JWT)JWT Secret KeyAccess TokenBase64URL EncodingJWT PayloadJWT Header