AVIF Viewer
Open AVIF images instantly in your browser, free.
About
AVIF (AV1 Image File Format) is a next-generation image format based on the AV1 video codec. It delivers dramatically smaller files than JPEG and WebP at the same quality, with support for HDR, wide color gamut, transparency and animation. It is quickly becoming the format of choice for high-efficiency web images.
Native support
| Environment | Support |
|---|---|
| Chrome / Edge | Supported |
| Firefox | Supported |
| Safari | Supported |
| Windows Explorer | Not native |
How to Open AVIF Files on Windows with VoidImageViewer
Install a native AVIF viewer
Windows Photos only decodes AVIF after you purchase the AV1 Video Extension from the Microsoft Store. VoidImageViewer is free and decodes AVIF natively — download the installer and run it.
Double-click or use “Open with”
Once installed, double-click the .avif file in File Explorer. If another app grabbed the association first, right-click the file → Open with → Choose another app → Void Image Viewer.
Make it the default for .avif
In the same “Open with” dialog, tick “Always use this app to open .avif files”. You can also change it later under Settings → Apps → Default apps in Windows 10/11.
Or preview it right here
Drop the .avif into the preview tool on this page — modern browsers decode AVIF natively, and the file never leaves your machine.
Why Open .avif Files with VoidImageViewer
VoidImageViewer costs nothing and is released as open source under the MIT license. It contains no ads, no sign-up walls and no telemetry — the app works entirely offline. AVIF decoding is built in, so unlike the Microsoft Store route you never pay for a codec extension, and a published SHA256 checksum lets you verify the installer before running it.
Open AVIF files
The online preview lets you view the file. To edit, batch-convert, or set it as your default Windows viewer, use the free desktop app.
Frequently asked
Generally yes — AVIF often produces 20–50% smaller files than WebP at similar quality, especially for photographic content.
Most phones save photos as HEIC or JPEG. AVIF is more common for images delivered by websites and apps.
Yes, the Void desktop app exports AVIF to JPG or PNG. This online tool only previews the file locally.
Windows Photos only decodes AVIF after you buy the “AV1 Video Extension” from the Microsoft Store. The free route is VoidImageViewer — it decodes AVIF natively with no extension: install it, then double-click the .avif file or right-click it → Open with → Void Image Viewer.
VoidImageViewer is MIT-licensed open source: the code is public on GitHub, the app makes no network requests, and every installer is published with a SHA256 checksum you can verify before running it.
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Instant Format Preview
No install required — works right here in your browser.
Drop an image here, or click to browse
AVIF · .avif