Browser Codec Support Test

Free browser-side codec compatibility checker. Tests H.264 (Baseline / Main / High), H.265, AV1, VP9, VP8, Opus, AAC, MP3, FLAC, Vorbis, ALAC, AC-3 and E-AC-3 against MediaSource and HTMLMediaElement. Auto-detects Steam Deck, PS5, Xbox and Switch and highlights the matching column in the matrix so you can compare your browser against the console you actually own.

How to use

1
Open the page

No setup required. The matrix populates instantly from the browser's built-in codec API.

2
Read the platform card

A platform name appears at the top. If you are on a console, that column is highlighted in the matrix below.

3
Compare your row to console hints

A green pill in your browser column plus a green pill in the console column means you should be able to play that codec on that console.

4
Copy and share the report

Use Copy report to drop a plain-text summary into your clipboard.

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See which audio and video codecs your browser actually plays

🌐
Detecting platform…
Reading user agent for console-aware highlighting.

Summary

—
Supported
—
Partial
—
Unsupported

Codec matrix

Each codec is tested via MediaSource.isTypeSupported and HTMLMediaElement.canPlayType. Console columns are curated hints — your browser results override them when you are on that console.

Codec matrix
Codec MIME canPlayType MSE Summary Deck PS5 Xbox Switch
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Features

Full audio + video codec matrix Two-engine probe Console-aware columns One-click report copy

FAQ

Why does AV1 say "unsupported" on my Mac Safari?

Apple added AV1 hardware decoding to M3 chips and later. On older Macs, Safari falls back to software AV1 decoding, which the codec API still reports as supported but with poor performance. The pill above is the API's answer, not a quality verdict.

What's the difference between MSE and canPlayType?

canPlayType reports whether a plain

How accurate are the console columns?

The console columns are curated from public Sony/Microsoft/Nintendo/Valve documentation and well-known community knowledge. They are hints, not real-time probes — your browser's own result is authoritative for the device you're actually on.

Why does my browser report H.265 as supported but YouTube uses VP9?

Browser support and what a streaming service decides to ship are different things. YouTube prefers VP9 / AV1 royalty-free codecs to reduce licensing costs. The page tells you what your browser CAN decode, not what services CHOOSE to use.

💡 Want us to improve this tool just for you?

We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

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Who is this tool for?
💻 Developers & IT Pros
Published Updated