Insights, guides, and updates about web utilities, privacy, and productivity.
Showing 1–7 of 7 articles · Developer
Understand cryptographic hashing from the ground up — what hash functions do, how MD5, SHA-1, and SHA-256 differ, practical use cases from file verification to password storage, and which algorithm to choose.
Learn what Unix timestamps are, why developers use epoch time, how to convert between timestamps and dates, handle timezones correctly, and avoid common pitfalls like the Year 2038 problem.
Demystify Base64 encoding with this practical guide. Learn how to encode and decode Base64 strings, understand the algorithm step by step, and explore common use cases from embedding images to API authentication.
Understand universally unique identifiers — what UUIDs and GUIDs are, UUID v4 vs v7 differences, when to use them in databases and APIs, and potential pitfalls to avoid.
JSON vs XML — which is better for APIs? Compare strengths, weaknesses, and performance of each data format to discover which one best suits your project.
A regex tutorial for beginners with examples. Learn pattern matching fundamentals, common regex patterns for email and phone validation, and practical examples you can use immediately.
Struggling with encoding errors and mojibake? Learn the difference between UTF-8 and ASCII, why UTF-8 became the dominant standard, and how to diagnose and fix common character encoding problems.