Browser GPU capability
WebGL Test
Check WebGL 1 and WebGL 2 support, GPU renderer details, texture limits, antialiasing, and live canvas rendering.
WebGL Test
Live WebGL canvas
WebGL 2 is checked first, followed by WebGL 1 as a fallback.
What this tool measures
WebGL lets browser pages use the GPU for 2D and 3D graphics. The test checks context creation and reads standardized capability limits.
How to use it
- Run the automatic check.
- Confirm whether WebGL 2 or WebGL 1 is active.
- Use the live rendered canvas to verify that drawing continues without errors.
When to run a WebGL test
- A web game, map, or 3D viewer will not open
- Check whether browser hardware acceleration is working
- Verify GPU rendering after a graphics-driver update
How to interpret the WebGL result
Creating a WebGL 2 context and drawing continuously usually confirms modern browser 3D support; WebGL 1 can still support older content.
Repeat the test
Use several runs under the same conditions before drawing a conclusion from a single value.
Compare like with like
Keep the browser, window size, device connection, and power mode consistent when comparing results.
Renderer information
It can indicate discrete GPU, integrated GPU, or software rendering, although browsers may hide the exact name for privacy.
Maximum texture size
This is the maximum side length of one texture, not the amount of video memory or an overall performance score.
Measurement limits
Renderer names may be masked for privacy. Disabled hardware acceleration or graphics-driver blocklists can prevent WebGL.
Privacy
Measurements are calculated locally in your browser and are not uploaded by the tool.
What to do when WebGL is unavailable
Keep the page active
Background-tab throttling, browser extensions, and other busy applications can affect browser measurements.
Retest under controlled conditions
Reload the page, keep the same settings, and repeat the measurement before treating an outlier as a fault.
Check hardware acceleration
Enable hardware acceleration in browser settings, restart the browser, and test again.
Update the graphics driver
An old or blocklisted driver can prevent the browser from creating a WebGL context.
WebGL questions
Is this a hardware certification test?
No. It is a browser-side diagnostic intended for comparison and troubleshooting, not laboratory certification.
Why is the exact GPU name hidden?
The browser may suppress debug renderer information to reduce device fingerprinting.
Are WebGL and WebGPU the same?
No. WebGPU is a newer graphics and compute API; this page tests the more widely compatible WebGL 1 and 2 APIs.