Can I use... Support tables for HTML5, CSS3, etc
"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.
Categories:
Can I Use provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers, targeted at web developers.
๐ Overview
Can I Use (caniuse.com) is a comprehensive database that offers detailed browser compatibility information for HTML5, CSS3, JavaScript APIs, and other web platform features. It allows developers to quickly assess whether a particular technology can be used in production by showing support across major browsers like Chrome, Firefox, Safari, Edge, and mobile variants.
The project solves the problem of fragmented and outdated browser support documentation, enabling developers to make informed decisions about feature adoption, polyfills, or fallbacks without extensive testing. It was created by Alexis Deveria (@fyrd) over 10 years ago to centralize this critical data.
It's built for front-end developers, web teams, and anyone building cross-browser compatible websites and apps. The motivation is to empower the web development community with reliable, community-updated data to accelerate modern web development.
โจ Key Features
- Feature Search and Tables: Search thousands of web features and view color-coded support status (green: supported, yellow: partial/prefixed, red: not supported) across browser versions with specific version numbers.
- Usage Statistics: Global and regional browser usage percentages to understand real-world adoption; option to import personal site stats via Google Analytics.
- Additional Context: Notes on known issues, required flags, polyfill links, specification references, and sub-features.
- Upcoming: Integrations with MDN browser compat data for even more detailed tables.
๐ Tech Stack
- Frontend: Custom JavaScript web application
- Backend: N/A (primarily client-side with data fetches)
- Database: JSON data files from GitHub repository
- Auth: None
- Hosting: Custom hosting
๐ฅ Who Is This For?
This project is useful for:
- Developers who want to check browser support before implementing new web features
- Teams looking for cross-browser compatibility insights
- Indie makers building progressive web apps and ensuring wide reach
๐ธ Screenshots / Demo
- Live demo: https://caniuse.com
- GitHub: https://github.com/fyrd/caniuse
๐ฅ Project Status
- ๐ข Actively building
Last updated: 2026-03-24
โ FAQ
Is this project free?
Yes (Explain briefly.) Completely free to use for everyone.
Is the source code available?
Yes โ https://github.com/fyrd/caniuse (raw support data JSON files) No โ website source code is not publicly available
Can I contribute?
Yes, contribute by submitting pull requests to update or add support data in the GitHub repository. Follow the CONTRIBUTING.md guidelines for data format and validation. Report issues or suggest features there too.
๐ฌ Contact & Links
- Website: https://caniuse.com
- GitHub: https://github.com/fyrd/caniuse
- Twitter/X: https://twitter.com/fyrd
- Email: https://a.deveria.com/contact
Built with โค๏ธ and kept warm on WarmIndex.
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