How to use Browser Feature Support Lookup
- Search a feature in the selected table.
- Choose a browser family or compare all listed families.
- Review alternatives, notes and the snapshot date before relying on support.
Example: Browser Feature Support Lookup
Search grid and choose a listed browser family.
Options
- Feature query
- Search the selected feature names or keys. An empty query lists the bundled selection rather than every browser feature.
- Browser family
- Choose a family to narrow the snapshot. Alternative support records can include flags, prefixes, partial support and removals that need separate review.
Supported inputs and limits
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
A support version is a starting point for testing
The pinned subset can help choose where to test, but it is not a live capability check of the visitor’s browser. Review notes and alternative records instead of reading only the earliest version. Browser settings, device capabilities and the exact feature usage may still change the outcome. Keep the snapshot date with a compatibility decision.
Questions about Browser Feature Support Lookup
Does this test the browser I am using?
No. It searches stored compatibility records.
What does a support flag mean?
The recorded feature may require a setting or experimental flag; read its note.
Are all web features included?
No. This tool exposes a stated selection of 49 API and CSS features.