Developer guides
Encoding, tokens, URLs and the fundamentals behind developer tooling.
4 guides
Base64 Explained: What It Is and When to Use It
How Base64 turns binary into text, why output is about 33% larger, where padding comes from, URL-safe variants, and why Base64 is encoding rather than encryption.
Decode a JWT Online (and When HS256 Verify Is Enough)
Decode a JWT in your browser, optionally verify HS256/HS384/HS512 with a shared secret via Web Crypto, and know when that check is enough — and when RS256/ES256 means it is not.
JWT Explained: Structure, Claims and Safe Use
What a JSON Web Token contains, how the three segments work, which claims matter, how signatures are verified and the mistakes that turn JWTs into a security hole.
URL Encoding Explained (Percent-Encoding)
Why URLs need encoding, which characters are reserved, the difference between encodeURI and encodeURIComponent, plus and space confusion, and how to avoid double encoding.
All Developer guides
4 published
Base64 Explained: What It Is and When to Use It
How Base64 turns binary into text, why output is about 33% larger, where padding comes from, URL-safe variants, and why Base64 is encoding rather than encryption.
Decode a JWT Online (and When HS256 Verify Is Enough)
Decode a JWT in your browser, optionally verify HS256/HS384/HS512 with a shared secret via Web Crypto, and know when that check is enough — and when RS256/ES256 means it is not.
JWT Explained: Structure, Claims and Safe Use
What a JSON Web Token contains, how the three segments work, which claims matter, how signatures are verified and the mistakes that turn JWTs into a security hole.
URL Encoding Explained (Percent-Encoding)
Why URLs need encoding, which characters are reserved, the difference between encodeURI and encodeURIComponent, plus and space confusion, and how to avoid double encoding.