SEO-First Blog & Guides

Developer Guides & Tool Tutorials

Practical guides on formatting JSON, decoding JWTs, choosing hash algorithms, generating UUIDs, and other everyday developer tasks — all runnable free, right in your browser.

Security & Encoding

How to Decode a JWT Safely (Without Pasting It Into a Random Website)

JWTs carry session data, claims, and sometimes more than they should. Here is how to inspect the header, payload, and expiry without leaking a live token.

Alex Developer

July 22, 2026 • 2 min read

Security & Encoding

MD5 vs SHA-1 vs SHA-256 vs SHA-512: Which Hash Should You Actually Use?

Not all hash algorithms are equal. Here is when MD5 is still fine, when SHA-1 is a liability, and why SHA-256 is the default for almost everything now.

Alex Developer

July 22, 2026 • 2 min read