● Capability detection, not browser guessing

Browser Image Format and API Support Test

Test WebP and AVIF encoding, image decoding, workers, offline support and local file APIs in the current browser. Export the results as JSON.

Test this browser

The test runs small local capability checks rather than relying only on the browser name or user-agent string.

No test has been run yet.

Capability	Status	Why it matters

Run the format benchmark
Compare PNG, JPEG and WebP output size and speed.Convert a real PNG batch
Validate transparency and quality on your own source images.

Built and maintained by Salih Can Kurnaz · Updated 2026-08-01. Measurements are produced locally by the current browser.