GeezerVison

Latest features

1. Lazy loading via attribute for video & audio
2. CSS Grid Lanes
3. CSS if() function
4. View Transitions (cross-document)
5. WebAssembly Import/Export of Mutable Globals

Most searched features

1. AVIF
2. WebP
3. CSS Grid
4. dvh (Small, Large, and Dynamic viewport units)
5. Flexbox

Test a feature

Our partnership with BrowserStack now lets you test your website for compatibility across 2,000+ real browsers and devices.

Test on:

Did you know?

• If a feature you're looking for is not available on the site, you can vote to have it included. Better yet, if you've done the research you can even submit it yourself!

• You can import usage data from your Google Analytics account and see exactly how well a feature is supported among your own site's visitors. Look under the Settings panel to get started!

• Usage data for all countries and continents can be imported via the Settings panel.

• By default, older browser versions are only shown if they have >= 0.5% usage share. You can increase or decrease this value from the Settings panel.

• Each feature support table includes a "Usage relative" button. This will resize each browser version cell to be relative to the amount of support it has for the selected usage source.

Third party tools

1. The CanIUse Embed — Add support tables to your site
2. Caniuse Component — Add support tables to your presentations
3. Caniuse command line tool
4. Doiuse...? — Lint your CSS to check what features work
5. I want to use — Select multiple features and see what % of users can use them

See full list

Browser scores

1. Chrome 157: 444
2. Safari 27.2: 419
3. Firefox 160: 423

Other support sites

1. Can I email... — Support tables for HTML & CSS in emails
2. Accessibility Support — Support information for web accessibility features in assistive technologies
3. Can I Webview — Documentation for WebView capabilities, limitations & features