This test shows the system and user fonts available to your browser. The browser will ask for permission to display the list. Font names and data are processed locally and are not sent to a server.
Click “Show fonts” and grant access in the browser prompt. The test will display the fonts available to your operating system. You can search the list, group fonts by family and open an individual style for preview.
Installed fonts can be viewed in compatible Chromium-based desktop browsers, including Chrome and Edge on Windows, macOS and Linux. Firefox, Safari and mobile browsers do not support the Local Font Access API. Before requesting the list, CheckDevice checks whether the API is available. See the official Chrome documentation and MDN for details.
| Browser or device | Support |
|---|---|
| Chrome and Edge on Windows, macOS or Linux | Supported in compatible versions |
| Other Chromium-based desktop browsers | Depends on the browser implementation |
| Firefox and Safari | Not supported |
| Android, iOS and iPadOS | Local font listing is not supported |
The page first checks whether window.queryLocalFonts is available. After permission is granted, the browser returns the font’s full name, PostScript name, family and style. CheckDevice sorts these values, groups related faces and uses the local font in CSS to build the preview.
Limitations: the test does not verify a font’s licence, file integrity or complete Unicode character coverage. The result can also differ between operating systems and browser versions.