Image to AVIF
Convert to AVIF, the smallest modern format.
How to use Image to AVIF
- Drop your JPG, PNG or WebP files onto the upload area.
- Set the AVIF quality with the slider.
- Click Convert.
- Download each AVIF file, or click Download all for a zip.
AVIF currently produces the smallest files of the common web image formats — commonly 40 to 50% smaller than an equivalent JPG at matched quality, sometimes more on photographic content. All major browsers can display an AVIF image.
Encoding it is a different story from displaying it, though, and it's worth knowing before you convert a whole batch: browser support for creating AVIF files (as opposed to just opening them) is still uneven. This tool checks your browser's actual encoding support before you start, rather than letting you find out file by file.
When it's supported, conversion runs entirely in your browser using the browser's own AVIF encoder — nothing is uploaded to a server. Drop in one file or a batch, and download them together as a ZIP if you convert more than one.
Questions
Why does it say my browser can't encode AVIF?
Encoding AVIF from a canvas is currently only reliably supported in recent Chrome and Edge — Firefox and Safari haven't added it as of 2026. All of them can display AVIF images just fine; it's specifically creating new ones that's limited. Switch to a current version of Chrome or Edge to convert.
How much smaller will my files get?
Commonly 40 to 50% smaller than an equivalent JPG at the same visual quality, though it varies by image — this tool works well on photos, less dramatically on flat graphics.
Should I use AVIF instead of WebP for everything?
Only if you control the whole pipeline and file size is the priority. WebP remains the safer default for general use because its encoding support is universal, while AVIF's currently isn't.
Can I convert many files at once?
Yes — drop in as many files as you like in one go, as long as your browser supports AVIF encoding. There's no per-file or batch limit set by the site.
Are my images uploaded anywhere?
No. Decoding and re-encoding both happen in your browser tab — the files never leave your device.
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