Blog — Developer Tools Tips & Tutorials
Tutorials, tips, and in-depth guides to help you get the most out of our free online developer tools.
Learn how to format, validate, and minify JSON efficiently. Covers comment handling, trailing comma fixes, common JSON errors, and why browser-based tools are safer than server-based alternatives. Perfect for API developers and frontend engineers working with JSON daily.
Understand the anatomy of a JSON Web Token — header, payload, and signature. Step-by-step guide to decoding JWTs online safely, reading claims like exp/iat/sub, and best practices for token security in production applications.
A curated roundup of the essential free browser-based developer tools — JSON formatter, JWT decoder, regex tester, Base64 encoder, hash generator, and more. All 100% client-side, no signup required. Boost your workflow without installing anything.
Everything you need to know about Base64 — how the encoding works, common use cases (data URIs, email, JWTs), Unicode handling gotchas, and why Base64 is encoding, not encryption.
Master regular expressions step by step — basic syntax, practical patterns (email, URL, phone validation), regex flags explained, common mistakes, and how to avoid catastrophic backtracking.
Learn what makes a password truly strong: entropy explained, password manager strategy, common mistakes to avoid, and how to use a cryptographically secure password generator.
Everything about Unix timestamps: seconds vs milliseconds gotcha, timezone handling, common use cases in APIs, databases, and JWTs, plus a free online converter with auto-format detection.
Complete Markdown syntax reference, README template for open-source projects, editor features to look for, and professional writing tips to level up your documentation.