Article 01Developer tools
How to Format and Validate JSON
Learn what JSON formatting does, how to validate JSON, and how to understand common syntax errors.
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Developer Knowledge Base
Technical Guides & Concepts
Master the core specifications, security nuances, and encoding algorithms behind everyday developer tools. Structured, practical, and clear.
Article 02Encoding
Base64 Encoding and Decoding Explained
Understand Base64, common use cases, Unicode text, and why encoding is not encryption.
Article 03Encoding
URL Encoding: A Practical Guide
Learn percent encoding, URL components, reserved characters, and safe decoding.
Article 04Text utilities
How to Compare Two Text Files
Compare text, understand line-based diffs, and find changes between versions.
Article 05Developer tools
Regular Expressions for Beginners
Learn regex patterns, character classes, quantifiers, flags, and practical examples.
Article 06Generators
What Is a UUID? Versions, Formats and Best Practices
Understand UUID structure, the difference between v1, v4 and v7, collision odds, and database tips.
Article 07Security
Hash Functions Explained: SHA-256, SHA-1 and Beyond
Learn what cryptographic hashes are, how SHA algorithms differ, and when not to use them.
Article 08Security
JSON Web Tokens (JWT) Explained
How JWTs are structured, signed and verified, common claims, and security pitfalls to avoid.
Article 09Converters
Unix Timestamps: A Complete Guide
What epoch time is, seconds vs milliseconds, time zones, the 2038 problem, and code examples.
Article 010Generators
How to Create Strong Passwords
Password entropy, length versus complexity, passphrases, and how password managers help.
Article 011Design
HEX, RGB and HSL Colors Explained
Understand web color formats, how to convert between them, and how to meet contrast guidelines.
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