Tips

Practical tips on string tools, encoding, regex and more.

Security February 2026

SHA-256 Hashing Explained: Web Crypto API Examples

What is a hash? Where SHA-256 is used, and how to implement it in-browser using the Web Crypto API.

Tips February 2026

What is Base64? Encoding Explained with Examples

Why do email and web use Base64? From the rationale for handling binary as text to real implementation examples.

Regex January 2026

30 Practical Regex Patterns: Email, URL, Zip Code, Phone

A ready-to-copy regex pattern collection for real-world use, with edge case notes.