Compare
AVIF vs JPEG
AVIF is a newer option for optimizing web images and can support transparency. JPEG is a widely compatible lossy format for photo delivery. Choose based on measured results and audience support.
Which format should you choose?
Test AVIF for web images when reducing transfer size matters, and check browser and CMS support. Choose JPEG when broad compatibility is the priority; serving both may be useful. Keep the original image.
Good fit for AVIF
Web image delivery · Optimized photographs · Transparent web images
- Balancing quality and transfer size
- Delivery environments confirmed to support AVIF
Good fit for JPEG
Photographs · Web images
- Photographs intended for compact sharing
- Images with many colors
Basic information
| Field | AVIF | JPEG |
|---|---|---|
| Extension | .avif | .jpg, .jpeg |
| MIME type | image/avif | image/jpeg |
| Common uses | Web image delivery · Optimized photographs · Transparent web images | Photographs · Web images |
| How to open | Compatible web browsers can display AVIF on a page. For local files, confirm that your operating-system viewer or image editor supports AVIF. | Most operating-system viewers, web browsers, and image editors can open JPEG files. |
| Export or convert | When converting JPEG or PNG to AVIF, retain the source image and check quality settings and transparency. When converting AVIF to another format, features or metadata unsupported by the output format may not be retained. | Exporting JPEG to PNG or WebP cannot restore data already removed by JPEG compression. Keep an original editing file, and use a proper export command rather than changing only the filename extension. |
Choose by use case
Balancing quality and transfer size
Web image delivery · Optimized photographs · Transparent web images
AVIFDelivery environments confirmed to support AVIF
Web image delivery · Optimized photographs · Transparent web images
AVIFPhotographs intended for compact sharing
Photographs · Web images
JPEGImages with many colors
Photographs · Web images
JPEGKey point 1
AVIF can offer lossy or lossless encoding and supports features such as transparency, but the workflow needs support checks.
More on the differencesKey point 2
JPEG is widely handled as a lossy photo format across software and services.
More on the differencesMore on the differences
Compare the same source images at the intended display size and quality. Check encoding effort, output size, visual artifacts, and delivery support instead of assuming one format always wins.
- AVIF can suit optimized web delivery when the target environment supports it.
- JPEG remains practical for general photo exchange and compatibility with a broad range of tools.
- Both formats' results depend on encoder, settings, and image content.
- Compare representative images at acceptable visual quality using the actual delivery settings. Test target browsers, keep the original, and provide a fallback where needed.
Frequently asked questions
Should I replace all JPEG images with AVIF?
Not automatically. Test representative images and the full delivery path, and retain a fallback if some clients or tools need it.
Is AVIF always smaller and better-looking than JPEG?
No. Compare the actual images and settings; results depend on content and encoding.