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Cheat Sheets
Quick-reference guides for developer syntax, formats, and protocols. Bookmark, share, and use them alongside the tools.
3 cheat sheets
Cron Expressions
Quick reference for cron expression syntax: fields, special characters, common schedules, and platform differences (Linux, GitHub Actions, AWS, Quartz).
CSS Selectors
Complete CSS selectors reference: basic selectors, combinators, attribute selectors, pseudo-classes, pseudo-elements, modern selectors (:is, :where, :has), and specificity.
Git Commands
Quick-reference guide to the most common Git commands — configuration, branching, merging, remote operations, undoing changes, stashing, and inspection.