Can I Use — free plan, limits and what it is good for
The reference for browser support. Faster than reading MDN compatibility tables when you just need a yes/no.
| Pricing | Free |
|---|---|
| Free tier | Fully free |
| Account required | No account needed |
| Watermark on free output | No |
| Limits | None |
| Platforms | Web |
| Best for | CSS and JS feature support, browser market share |
| Last checked | October 2026 |
What the free plan actually gives you
Type a feature, get a table of browsers with version numbers and partial-support flags. The data is community-maintained and updated against real browser releases, so it stays current in a way blog posts never do.
Two things to watch: "partial support" often means a prefix or a different behaviour, and the global usage percentage is an average that hides your actual audience. Check the per-region data before deciding to drop a fallback.
Where it breaks
- Partial support flags need reading, not skimming
- Global usage average can mislead for niche audiences
- Data lags very fresh releases by days
What we would use instead
If the limits above are a problem, the closest free substitutes are DevDocs. They are not identical — each one trades something different — but all of them let you finish a job without paying.
Free alternatives
Questions people actually ask
Is Can I Use data open?
Yes, the underlying browser support data is published openly and reused by many other tools.
How is usage percentage calculated?
From StatCounter browser share, filtered by the region and version range you select.
Does it cover JavaScript APIs?
Yes, including many experimental ones, though MDN is more detailed on behaviour.