- javascript.info
- freecodecamp
- codecademy
- Eloquent javascript
- You don't know js (GitHub)
- 30 days of javascript (GitHub)
- javascript for loop alternatives 1
- javascript for loop alternatives 2
- Node School
- HackerNoon
- Mozilla developer, balises HTML
- WHATWG: HTML Standard
- W3C Validator (HTML)
- Balises HTML, W3C
- Html5Please
- Markdown Cheatsheet
- Liste des codes ISO 639 pour les langues
- Schema.org
- Microdata Testing Tool
- Pug
- Markdown Live Preview
- Mozilla developer, références CSS
- Can I use...
- W3C validation CSS
- Codepen
- Clean CSS
- CSS3 Generator
- CSS3 pour text-shadows
- Normalize css
- Clippy
- CSS Triangle Generator
- html5up
- Stylus
- Stylus cheatsheet
- GitHub Copilot
- Wave
- PageSpeed Insights
- Dareboost
- Gtmetrix
- WebPageTest
- Woorank
- CloudConvert
- Chrome Experiments
- Chrome Platform Status