Browser Feature Support
Check browser compatibility for CSS, HTML, JavaScript, and Web API features using real MDN data
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What is Browser Feature Support?
Free online browser feature support to look up browser compatibility for CSS properties, HTML elements, and JavaScript APIs.
Search for any web feature and see which browsers support it, including version numbers and known issues. Based on real-world compatibility data. Essential for deciding which features to use in production and what fallbacks to provide. No signup required.
How to Use Browser Feature Support
- 1Search for a web feature by name (e.g., 'CSS grid', 'dialog element')
- 2View the browser support table showing versions
- 3Check notes for known issues or partial support
- 4Decide whether to use the feature or provide a fallback
Frequently Asked Questions
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