Cheat sheets
Quick references for HTML, CSS, JavaScript, Git, regex, SQL, Markdown and more.
- CSS Selector Cheat Sheet Every CSS selector, combinator, pseudo-class and pseudo-element, with an example for each.
- JavaScript Cheat Sheet The JavaScript syntax, built-in methods and browser calls you reach for daily, in one reference.
- JSON Cheat Sheet The whole JSON grammar on one page, plus the parser errors it produces and how to fix them.
- Vim Cheat Sheet Motions, operators, text objects, registers, macros and window commands for Vim and Neovim.
- YAML Cheat Sheet Indentation rules, quoting, block scalars, anchors and the type traps that break YAML files.
Other categories
- JSON tools
- XML tools
- YAML tools
- CSV and TSV tools
- HTML tools
- CSS tools
- JavaScript tools
- SQL tools
- Code formatters
- Minifiers
- Validators
- Data converters
- Encoders and decoders
- Escape and unescape
- Hash and cryptography
- String and text tools
- Number tools
- Color tools
- Unit converters
- Date and time tools
- Generators
- Random data generators
- Image tools
- Compress and decompress
- Network and DNS tools
- Web and developer tools
- Chart makers
- Fun text tools
- Calculators