How much smaller is AVIF than .jpeg?

Roughly 40-50% smaller at equivalent visual quality, since .jpeg is the same format as JPG and AVIF is the more efficient modern codec. On an image-heavy site that is a large bandwidth and load-time saving.

Is AVIF supported everywhere yet?

All major modern browsers support it, but some older software and email clients still do not. Keep that in mind if the image needs to display outside a browser, and provide a fallback for a public website.

Does re-encoding a .jpeg to AVIF lose quality?

A JPEG is already lossy, so converting to AVIF adds one small generation step. At standard quality it is not visible, but avoid repeated round-trips between lossy formats, and keep the original if you may need it later.

Can AVIF add transparency or HDR the .jpeg lacked?

No. AVIF supports 10-bit colour and an alpha channel, but a JPEG is 8-bit and opaque, so those capabilities cannot recover detail or transparency that was never captured in the source.

Should I use AVIF or WebP for a .jpeg?

AVIF usually produces the smaller file, while WebP has wider and longer-established support. Pick AVIF when size matters most and your audience uses modern browsers, and WebP when maximum compatibility is the priority.

Why does the file use the .jpeg extension instead of .jpg?

It is only a naming convention. Some tools write the full .jpeg and others use .jpg, but the image data inside is exactly the same format, so the AVIF result is identical either way.

Can I convert several .jpeg files to AVIF at once?

Yes. Add a whole folder of .jpeg files and each becomes its own AVIF in a single pass, with nothing merged and no limit on the number of files.

Convert JPEG to AVIF Online

Convert .jpeg to AVIF for the smallest possible file size with near-identical visual quality.

or drag & drop them here · images, video, audio and documents · up to 2 GB

How to convert JPEG to AVIF

Click "Choose Files" and select your JPEG file, or drag & drop it onto the page.
Make sure AVIF is selected as the target format.
Click "Convert" and wait a few seconds.
Download your new AVIF file.

Why Converters.live?

Free and unlimited — convert as many JPEG images to AVIF as you need, one by one or in bulk.
Files up to 2 GB, with resolution and color quality preserved when converting JPEG to AVIF.
Your photos are deleted from the server immediately after conversion — nothing is stored.

Frequently asked questions

How much smaller is AVIF than .jpeg?: Roughly 40-50% smaller at equivalent visual quality, since .jpeg is the same format as JPG and AVIF is the more efficient modern codec. On an image-heavy site that is a large bandwidth and load-time saving.
Is AVIF supported everywhere yet?: All major modern browsers support it, but some older software and email clients still do not. Keep that in mind if the image needs to display outside a browser, and provide a fallback for a public website.
Does re-encoding a .jpeg to AVIF lose quality?: A JPEG is already lossy, so converting to AVIF adds one small generation step. At standard quality it is not visible, but avoid repeated round-trips between lossy formats, and keep the original if you may need it later.
Can AVIF add transparency or HDR the .jpeg lacked?: No. AVIF supports 10-bit colour and an alpha channel, but a JPEG is 8-bit and opaque, so those capabilities cannot recover detail or transparency that was never captured in the source.
Should I use AVIF or WebP for a .jpeg?: AVIF usually produces the smaller file, while WebP has wider and longer-established support. Pick AVIF when size matters most and your audience uses modern browsers, and WebP when maximum compatibility is the priority.
Why does the file use the .jpeg extension instead of .jpg?: It is only a naming convention. Some tools write the full .jpeg and others use .jpg, but the image data inside is exactly the same format, so the AVIF result is identical either way.
Can I convert several .jpeg files to AVIF at once?: Yes. Add a whole folder of .jpeg files and each becomes its own AVIF in a single pass, with nothing merged and no limit on the number of files.

About JPEG and AVIF

Key things to know before you convert JPEG to AVIF:

JPEG

JPEG (also called JPG) is the universal photo format: every device and app opens it, and lossy compression keeps file sizes small. The .jpeg and .jpg extensions are identical — only the name differs.

AVIF

AVIF is the most efficient mainstream image format, built on the AV1 codec: about half the size of JPG. Supports HDR, transparency and animation. Encoding is slower and tool support is still maturing.

Related conversions

JPG→AVIF PNG→AVIF JPEG→PNG JPEG→WEBP JPEG→HEIC JPEG→PDF WEBP→AVIF HEIC→AVIF