Browser Compatibility Checker
Check which browser APIs are available for calls and web tools. Understand the difference between feature support, permission and storage access.
Check browser features
The test checks feature availability, not whether a particular website implements it correctly.
How to use this tool
- Run the feature check in the browser where an app is failing.
- Find the specific feature needed by that app.
- Check permission and site settings separately, then retry the actual app.
What the results mean
The score counts exposed APIs, not browser quality. An API being present does not prove it works in the current context. IndexedDB support does not confirm a successful storage write, available quota or persistence.
Common problems
Private browsing, enterprise rules and insecure pages can limit features. A newer API such as WebGPU is not required for ordinary browsing. For camera or microphone problems, use the dedicated permission-based tests.
Privacy and data use
Feature detection runs locally. This check does not read your browsing history, stored documents or passwords.
Frequently asked question
Does this measure free browser storage?
No. It detects storage API availability. It does not measure disk capacity, test writes or guarantee that a website can retain data.