JXL Browser Support Checker
Instant live test: does the browser you are using right now actually render .jxl and .jp2 images?
Testing your browser…
Testing your browser with a real JXL image…
Testing your browser with a real JP2 image…
The established web format.
The AV1-based photo format.
Powers the fallback decoders on Cubbbix tools — even without native support, you can view and convert JXL and JP2 files here.
Tests complete — these results are for the browser you are using right now.
Live-Test Your Browser for JXL and JP2 Support
Support tables are one thing; your browser is another. This checker feeds your browser real JPEG XL and JPEG 2000 test images and reports what it can actually decode — plus WebP, AVIF and WebAssembly for context. No uploads, no installs: the test runs on this page, in the browser you are using now.
A Real Test, Not a Guess
The checker decodes actual tiny JXL and JP2 images (2 KB test payloads) — user-agent sniffing alone cannot tell you the truth.
The Full Support Picture
Below the live results: the current version-by-version status for Chrome, Firefox, Safari and Edge, including the WASM fallback that keeps Cubbbix tools working everywhere.
Why the Fallback Matters
Even where a browser lacks native JXL or JP2 support, WebAssembly decoders (used across this tool family) still open the files — "not supported" for display does not mean "unusable".
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