Convert JPG to AVIF

Convert JPEG images to AVIF — the next-generation format that produces files 50% smaller than JPG at the same quality.

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AVIF support varies by browser — Chrome and Firefox supported

Convert JPG to AVIF | MiniPx — Free, Fast & Private

AVIF is the most efficient image format available today. Based on the AV1 video codec, AVIF produces files roughly 50% smaller than JPEG and 20% smaller than WebP at equivalent visual quality. Converting your JPG images to AVIF can dramatically reduce page load times.

Browser support for AVIF has expanded rapidly. Chrome, Firefox, Opera, and Samsung Internet all support AVIF. Safari added support in version 16.4. For maximum compatibility, serve AVIF with a JPG or WebP fallback using the HTML picture element.

MiniPx converts JPG to AVIF using your browser Canvas API. The conversion happens entirely on your device — no server upload needed. Quality settings let you balance file size against visual fidelity.

AVIF particularly excels at compressing photographs with smooth gradients and subtle color transitions. Where JPEG shows visible banding or blocking artifacts, AVIF maintains smooth transitions at much smaller file sizes.

Note that AVIF encoding can be slower than JPG or WebP encoding. Processing time depends on your device hardware. The file size savings are worth the extra encoding time for web delivery.

How it works

Upload JPG images: Add one or more JPEG images you want to convert to AVIF.
Select AVIF format: Choose AVIF as the output format from the format dropdown.
Adjust quality: Smart preset for balanced quality. Lower quality for maximum compression.
Download AVIF files: Compare file sizes and download your AVIF images.

Frequently asked questions

How much smaller are AVIF files compared to JPG?

AVIF files are typically 50% smaller than JPG at the same visual quality. A 200KB JPG may compress to 80-100KB as AVIF with no visible difference.

Which browsers support AVIF?

Chrome 85+, Firefox 93+, Opera 76+, Samsung Internet 14.0+, and Safari 16.4+ all support AVIF. Internet Explorer and older browsers do not. Use AVIF with a fallback format for maximum compatibility.

Should I use AVIF or WebP?

AVIF produces smaller files than WebP (about 20% smaller at equal quality), but WebP has broader browser support and faster encoding. For new projects, AVIF is the better choice. For maximum compatibility, WebP is safer.

Why is AVIF encoding slow?

AVIF uses the AV1 codec which is computationally intensive. Browser-based encoding is slower than server-side encoding. The trade-off is worth it for the significant file size reduction.

Can all devices open AVIF files?

Most modern devices support AVIF. Older operating systems and applications may not. For sharing via email or messaging, JPG remains the safest universal format.

Is the conversion private?

Yes. MiniPx converts images entirely in your browser. No files are uploaded to any server during the conversion process.