Blog
Developer tool guides, tutorials, and technical articles.
crypto
SHA-256 Hash Algorithm: How It Works, Applications, and Online Tools
Understand SHA-256 internals, comparison with MD5/SHA-1, and real-world applications in password storage, blockchain, and file integrity.
encode
JWT Explained: Structure, Signature Verification, and Security Best Practices
Deep dive into JWT three-part structure, HS256 signature verification, common security pitfalls, and best practices.
encode
Base64 Encoding Explained: Unicode, URL-Safe Variants, and Best Practices
Understand Base64 encoding internals, Unicode-safe Chinese/Emoji handling, and URL-safe Base64 variants for web development.