PDFConvertersOnline.comHow to use the AVIF converter
- Add images in any common format, including .avif files you want to convert back.
- Pick the output: AVIF is preselected, with JPG, PNG and WebP one tap away.
- Convert and download the results singly or in a ZIP archive.
What is AVIF?
AVIF (AV1 Image File Format) is a still-image format based on the AV1 video codec from the Alliance for Open Media, a group whose members include major browser and streaming companies. It is royalty-free and was designed to replace JPG, PNG and WebP on the web with one modern format. In practice AVIF often produces the smallest files of any widely supported format at a given visual quality, especially for photos, and it supports transparency as well.
Converting to AVIF
Choose AVIF when file size matters most: images on a website, a portfolio with many large photos, or pictures for an app. The quality slider starts at 60%. That may sound low, but AVIF's scale isn't the same as JPG's; around 50–65% typically still looks clean while being far smaller than a JPG at 90%. Raise it for photos with fine texture or text.
Encoding AVIF takes real computing work. This page creates AVIF with an encoder that runs as WebAssembly inside your browser, so it works even in browsers that can only display AVIF. Expect a few seconds for a typical phone photo and longer for very large images; the progress screen shows which file is being processed and the page stays responsive.
Converting from AVIF
Browser support for viewing AVIF is good in current Chrome, Edge, Firefox and Safari, but plenty of desktop software, older phones and upload forms still reject .avif files. Drop them here and pick:
- JPG for photos you want to email, print or upload anywhere (see AVIF to JPG).
- PNG for graphics or images with transparent areas (see AVIF to PNG).
- WebP as a middle ground that is widely supported on the web yet still compact.
If your browser can't open AVIF by itself, the page decodes it with its own built-in decoder instead.
Tips for a smooth conversion
- Scale oversized photos down before encoding to AVIF. It makes encoding faster and files smaller.
- Keep the originals. AVIF is great for publishing but less useful as an archive format for sharing with others.
- For SVG files, choose the width you need; the drawing is rendered at that size before encoding.
Format comparison
| JPG | PNG | WebP | AVIF | |
|---|---|---|---|---|
| Typical photo size | Medium | Large | Small | Smallest |
| Transparency | No | Yes | Yes | Yes |
| Opens in older software | Everywhere | Everywhere | Mostly | Often not |
| Encoding speed | Fast | Fast | Fast | Slow |
Everything runs on your own device. The page never sends your pictures to a server.
More ways to use this tool
Frequently asked questions
Which images can I convert to AVIF?
JPG, PNG, WebP, GIF, BMP, HEIC from iPhones and SVG graphics. Animated GIF or WebP files become a still AVIF of the first frame.
Why does AVIF conversion take longer than JPG?
AVIF squeezes images much harder, which needs more computation. The encoder also runs as code inside the page rather than as a built-in browser feature.
Is 60% quality too low?
Not for AVIF. Its quality numbers don't match JPG's, and 60% usually looks good. Compare the result and adjust if you see smearing in fine details.
Do all browsers show AVIF images?
Current versions of the major browsers do. Very old browsers and some email clients don't, so keep a JPG version where compatibility matters.
Are my files uploaded for conversion?
No. Both the AVIF encoder and decoder run inside your browser tab.
Can I set a different quality for each file?
The quality applies to the whole batch. To use different settings, convert the files in separate rounds.