base64.date
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base64.date documentation

Developer guides and reference

Practical references for encoding formats, protocol compatibility, security, and implementation.

01

Choose the right Base64 standard.

RFC 4648 Base64 and Base64URL, JWT padding, MIME line breaks, PEM envelopes, and strict decoding explained with practical presets.

Standards in practice · 4 min read02

Base64 is not encryption.

What Base64 protects, what it does not, and how to handle sensitive data.

The essentials · 3 min read03

Which Base64 do you need?

Standard vs. URL-safe, padding, and the characters that trip you up.

Common gotchas · 3 min read04

A cheat sheet for your terminal.

Useful Base64 snippets for JavaScript, Python, and your command line.

Keep it handy · 4 min read