can-i-use
Browser support for web features, live from caniuse.
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What it can do
What data it sees
Do you need an account
No: the server works without sign-in
Browser support for web features, live from caniuse. From which version, and is it safe to ship?
Server tool list (3)
Raw names from tools/list. Only developers need these.
| check_feature_support | Can I use this feature, and from which browser version? Accepts a loose name (":has()", "container queries", "css-grid") and resolves it to a caniuse feature, then returns the earliest continuously-supported version per major browser, global usage percentage, and a conservative safe_to_use flag. Use this first; it answers the whole question in one call. |
| get_feature_by_id | Support table for an exact caniuse feature id. Use when the id is already known, for example from a previous search. No fuzzy matching is applied. |
| search_features | Find the caniuse feature id for a loose query. Use when a query is ambiguous and you want to choose between candidates before checking support. |