AV1 Video Extension

vAuto-updating (Microsoft Store)Free

Free codec for AV1 video and AVIF images in Windows apps. By Microsoft Corporation

Windows

Official sourceNo bundles

By the ToolsBharat teamLink checked 30 Oct 2026How we check

Quick answer

AV1 Video Extension is free software for Windows from Microsoft Corporation. Free codec for AV1 video and AVIF images in Windows apps. Download it only from apps.microsoft.com. The latest version we track is Auto-updating (Microsoft Store). ToolsBharat links straight to the publisher's own download page, with no bundled offers.

Latest version:: Auto-updating (Microsoft Store)
Publisher:: Microsoft Corporation
Official site:: apps.microsoft.com
Licence:: Free — Free Microsoft Store app
Requirements:: Windows 10 / 11

Our verdict

AV1 is the royalty-free video codec from the Alliance for Open Media. This free extension lets Windows apps play AV1 files and, with HEIF Image Extension, open .avif images. You only need it if a video or image refuses to open in Media Player or Photos; modern browsers have their own AV1 support.

Key features

AV1 playback in Windows video apps
Enables .avif images alongside HEIF Image Extension
Free, updated through the Store

Pros

Pro: Free and official
Pro: Small download

Cons

Con: Store-only
Con: Software decoding can be heavy on older PCs

What's new in Auto-updating (Microsoft Store)

See what changed in Auto-updating (Microsoft Store) in the official release notes

Version history

Version Auto-updating (Microsoft Store)Latest
date not stated
SHA-256
The developer does not publish one
Source
Release notes

Requirements

OS: Windows 10 / 11
Architecture: 64-bit, 32-bit, ARM64

Licence

Type: Free
Licence: Free Microsoft Store app
Publisher: apps.microsoft.com

Where these facts come from

Microsoft Store listing

Checked 30 Oct 2026

FAQ

Do I need the AV1 Video Extension?

Only if an AV1 video or an .avif image won't open in a Windows app. If everything already plays, you can skip it. It's free from the Microsoft Store.

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