JPG to AVIF Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
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Drop multiple images to combine them into one PDF, Word document, or PowerPoint presentation — or convert each image separately.
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Convert JPG to AVIF online
Convert JPG to AVIF to get the smallest modern web image. AVIF uses the AV1 video codec to compress a still frame, which reaches file sizes well below JPEG at the same perceived quality — and degrades far more gracefully when pushed hard.
When should you convert JPG to AVIF?
- Serve the smallest possible images on a modern website
- Cut bandwidth on a page full of photographs
- Improve Core Web Vitals on an image-heavy layout
- Use a royalty-free format end to end
Before you convert
Always provide a fallback
AVIF works in current browsers and largely does not outside them. Serve it from a <picture> element with a WebP or JPG fallback rather than as your only asset.
Encoding from a JPG caps the result
The detail your JPG already discarded is gone. AVIF encodes what is left very efficiently, which is a size win rather than a quality one.
What happens to your file
AVIF uses a modern video codec to compress a still image, which is why it reaches much smaller files than JPG at the same visual quality.
Settings this conversion runs with
| Engine | Pillow (Python Imaging Library) |
|---|---|
| Codec family | AV1 (AVIF) |
What changes
- Nothing in the picture is resampled unless you ask for it — resize, crop-to-aspect, and background removal are opt-in, so a plain JPG to AVIF keeps the original pixel dimensions.
About JPG and AVIF files
JPG image
Strengths
- small file size
- works almost everywhere
- great for photos
Limitations
- no transparency
- lossy compression
- not ideal for sharp graphics
AVIF image
Strengths
- excellent compression
- supports transparency
- high quality at small sizes
Limitations
- not supported by older software
- slower to encode
JPG vs AVIF
| Format | JPG | AVIF |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | No | Yes |
| Best for | photographs, web and email images | high-efficiency web images, modern photo delivery |
Guides for this conversion
- WebP vs AVIF vs JPEG: which to ship in 2026
Three image formats, three different trade-offs between file size, compatibility, and encoding time. A practical comparison with a straight recommendation.
Related tools
Frequently asked questions
- What happens to the image when you convert JPG to AVIF?
- AVIF uses a modern video codec to compress a still image, which is why it reaches much smaller files than JPG at the same visual quality.
- What should you know before converting JPG to AVIF?
- Nothing in the picture is resampled unless you ask for it — resize, crop-to-aspect, and background removal are opt-in, so a plain JPG to AVIF keeps the original pixel dimensions.
- Is this JPG to AVIF converter free?
- Yes. You can convert JPG to AVIF online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. Use the converter from your browser without installing software or creating an account. Files are uploaded to our servers for processing.
- Will converting JPG to AVIF reduce quality?
- AVIF uses lossy compression, so the file can get smaller while some visual quality may change.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.