Free · in your browser

Free JPG to AVIF converter.

Convert JPG to AVIF in your browser. Drop one file or a whole folder, get AVIF files back. No upload, no signup, no size limit, no watermark.

Need other formats? Universal converter →Compress the result →
  • 100% browser
  • Files never leave your device
  • No signup, no caps
  • GDPR & CCPA friendly
JPEG to AVIF Converter

Drop JPEG photos to convert

JPEG files only. We re-encode them as AVIF in your browser. No upload, no signup, no size limit.

What's in this converter

JPG in, AVIF out. That's it.

A single-purpose JPG to AVIF converter with the things people actually need: quality control, batch mode, and a privacy guarantee that files never leave your device.

JPG in, AVIF out

Single-purpose: decode JPG, re-encode AVIF. Nothing else to configure unless you want to.

Quality slider

Adjustable from 50% to 100%. AVIF squeezes the file smaller than JPEG at the same visual quality.

Batch in one shot

Drop a whole folder. Every AVIF is bundled into a ZIP for one click to your downloads.

Batch supported

Multi-select or drop a folder. Each file converts in turn; the results download as a single ZIP.

No upload, no signup

Files never leave your device. No account, no daily quota, no per-file size limit, no watermark.

Works offline

Once the page is loaded, the converter runs without an internet connection. Useful for sensitive material.

FAQ

Common questions about JPG to AVIF.

How do I convert JPG to AVIF?
Drop your JPG file (or a whole folder) onto the converter. The browser decodes the JPG and re-encodes it as AVIF, then gives the file back to download. No upload, no signup, no install. For multiple files, they bundle into a single ZIP.
Is the JPG to AVIF converter really free?
Yes. No accounts, no daily caps, no per-file size limit, no watermark. The whole conversion runs in your browser, so there is nothing to ration.
Do my JPG files upload anywhere?
No. The JPG decoding and AVIF encoding both happen on your device. Nothing uploads, nothing is logged. Close the tab and the files are gone.
What's the difference between JPG and AVIF?
JPG (also called JPEG) is the universal photo format. Every browser, OS, email client, and CMS reads it. It is lossy and does not support transparency. AVIF is the newest format, roughly 50% smaller than JPEG at the same quality, with transparency and HDR support. Browser support is strong in 2026, but some older tools and email clients still cannot open it. Converting JPG to AVIF makes sense when you need AVIF's compatibility or features for your target platform.
Can I batch convert many JPG files at once?
Yes. Drop a whole folder or multi-select files. Each one converts in turn and the AVIF files bundle into a single ZIP for one-click download.
Related reading

Photo guides on image formats.

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Taking the photo yourself? Skip the format dance.

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