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Can I Use
Browser support tables — check before you code and save yourself rework
Content updated · 2026-09-07
What is it · 它是什么
What is Can I Use?
Can I Use is the de facto standard for browser compatibility lookup: type in any HTML/CSS/JS feature and get a support table across browsers and versions, weighted with global usage shares. Check it before adopting a new CSS feature and you avoid the rework of shipping something that breaks for some users.
How to use · 怎么用
How to use Can I Use
- Search by feature keyword (aspect-ratio, backdrop-filter).
- Read the green/yellow/red table to decide whether you can ship it.
- Watch the global support percentage above the table and the footnotes — partially supported features list their conditions in the notes.
- Pair it with MDN's compatibility tables: Can I Use wins on lookup speed and its visual timeline.
Key features · 核心特点
Key features of Can I Use
- Covers nearly every HTML/CSS/JS/SVG feature
- Support tables precise to browser versions, with global usage shares
- A timeline view shows how support rolled out historically
- Free with no login — its data is cited across dev tools and documentation
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