myriadfile

AVIF to JPG converter

AVIF is efficient but still unsupported by plenty of software. Convert AVIF images to universally compatible JPG, right in your browser.

Runs on your device. Nothing is uploaded.
RunsIn your browser
UploadsNone
CollectionImage tools
Drop AVIF images hereor choose files. Your browser must be able to display AVIF.or paste with Ctrl V / ⌘ V

Good to know
  • AVIF output appears only in browsers that can encode AVIF. WebP output is unavailable in a few older Safari versions.
  • Converted files contain no EXIF metadata, so location and camera details are removed. Rotation is applied to the pixels.
  • GIF input uses the first frame only. Multi-image HEIC files (bursts) use the first image.
  • Very large batches are converted one file at a time to keep memory use low.

About AVIF

AVIF stores still images using the AV1 video codec, developed by the Alliance for Open Media. It often produces smaller files than JPG or WebP at the same visual quality, supports transparency and high dynamic range, and is increasingly used by websites and image CDNs.

Support outside browsers is patchier. Some image viewers, office suites, older phones and upload forms cannot open .avif files at all, which is when converting to JPG helps.

How to convert AVIF to JPG

  1. Add AVIF files. Drop or choose them. You can add several at once.
  2. Keep JPG and set quality. 90% is a safe default for photos.
  3. Convert. Your browser decodes each AVIF and Myriadfile encodes a JPG.
  4. Download. Save files one by one or as a ZIP.

Settings explained

Quality
Higher means larger files and fewer compression artefacts.
Fill for transparent areas
AVIF images with transparency get this background colour in the JPG.
Max size per image (KB)
Finds the best quality under your size limit.

Many sites and image CDNs choose the format per visitor: browsers that announce AVIF support receive AVIF, others receive JPG or WebP, even when the address ends in .jpg. That is why a saved image can turn out to be AVIF. Myriadfile reads the file’s real type from its first bytes, so a mislabelled file still converts correctly.

Browser support for reading AVIF

Decoding relies on your browser. Current versions of Chrome, Edge, Firefox and Safari can display AVIF. If a file fails to load, update your browser or try another one. MDN’s image format guide lists AVIF support details.

HDR AVIF images

Some AVIF images contain high dynamic range data. JPG is a standard dynamic range format, so bright highlights are mapped into the normal range during conversion and may look less intense.

Troubleshooting

“Your browser cannot decode AVIF”
Update your browser. On older iPhones, AVIF needs a recent iOS version.
The JPG is several times larger than the AVIF
That is normal: AVIF compresses much more efficiently. Lower the quality or set a KB limit if you need a smaller JPG.

Frequently asked questions

Is AVIF better than JPG?

For file size at a given quality, usually yes. For compatibility, JPG wins.

Can I convert animated AVIF?

The first frame is converted to a still JPG.

Are my images uploaded?

No. The conversion runs in your browser.

Can I convert JPG to AVIF here?

Only in browsers that can encode AVIF; if AVIF appears in the Convert to list on the image converter, yours can.

What about AVIF to PNG?

Use AVIF to PNG to keep transparency or to avoid any further lossy compression.

Sources