Developer Cheat Sheets
Quick reference guides you'll actually use. Concise tables, syntax summaries, and examples for everyday development.
JWT (JSON Web Token) Cheat Sheet
Quick reference for JSON Web Tokens. Structure, standard claims, algorithms, code examples for decoding and verifying in JavaScript, Python, and Go. Common security pitfalls and best practices.
URL Encoding Cheat Sheet
Quick reference for URL percent-encoding. Reserved characters, unreserved characters, common encodings, encodeURI vs encodeURIComponent, and encoding functions in every major language.
Cron Expression Cheat Sheet
Quick reference for cron expression syntax. Fields, special characters, common schedules, platform differences, and ready-to-use examples for crontab, Kubernetes, GitHub Actions, and AWS.
Regex Cheat Sheet
Quick reference for regular expression syntax: character classes, quantifiers, anchors, groups, lookaround, flags, and common patterns with examples.