AVIF Converter

Convert images to and from AVIF format. Smaller files, better quality. 100% client-side, no upload required.

Free to use. Runs in your browser.

AVIF offers 50% smaller files than JPG with better quality. Drop your images to convert to AVIF, or convert AVIF files to JPG/PNG/WebP. Everything runs in your browser.

Browser support

Converting to AVIF requires Chrome 121+, Edge 121+, or Firefox 131+. Safari does not yet support AVIF encoding. Converting from AVIF to JPG/PNG/WebP works in all modern browsers.

Drop images or click to upload

AVIF, JPG, PNG, WebP, batch supported

AVIF vs WebP vs JPG vs PNG: The Real Numbers

Everyone says AVIF is "smaller." But how much smaller? Here's a real comparison using the same source image at visually equivalent quality:

Format	File Size (photo)	File Size (graphic)	Transparency	Browser Support
JPG	500 KB (baseline)	Not ideal	No	100%
PNG	1.5-3 MB	300 KB	Yes	100%
WebP	350 KB (-30%)	200 KB (-33%)	Yes	97%
AVIF	250 KB (-50%)	150 KB (-50%)	Yes	93%

What this means for you: AVIF saves roughly half the bandwidth compared to JPG. For a website with 20 images per page, that's the difference between a 10 MB page load and a 5 MB page load, noticeable on mobile connections.

Browser and Device Support (2026)

Browser / Platform	AVIF Support	Since
Chrome	Full support	Chrome 85 (Aug 2020)
Firefox	Full support	Firefox 93 (Oct 2021)
Safari	Full support	Safari 16.4 (Mar 2023)
Edge	Full support	Edge 85 (Aug 2020)
Android	Full support	Chrome for Android 85+
iOS	Full support	iOS 16.4+
IE 11	No support	N/A (IE is dead)

As of 2026, AVIF is supported by 93%+ of global browsers. The holdouts are older iOS devices (pre-16.4) and legacy systems. For websites, serve AVIF with a JPG fallback using the <picture> element.

The Encoding Speed Trade-Off

AVIF's one real weakness: it's slow to encode. Compressing a single image can take 2-10× longer than JPG or WebP. This matters for:

Real-time uploads: If users upload photos and expect instant results, AVIF encoding adds noticeable lag. WebP or JPG is faster for user-facing tools.
Batch processing: Converting 1,000 images to AVIF might take minutes instead of seconds. Plan for this in build pipelines.
Static sites and CDNs: Encoding happens once at build time. The speed cost is paid once, and every visitor benefits from smaller files forever. This is where AVIF shines brightest.

When to Convert (And When Not To)

Convert to AVIF when...

Building a website and page speed matters
Storing lots of photos and storage costs money
Serving images to modern browsers with a JPG fallback
You have time for slower encoding (build step, not real-time)

Keep JPG/PNG when...

Sharing via email (not all clients render AVIF)
Printing (print shops expect JPG, TIFF, or PDF)
Editing workflow (AVIF isn't well-supported in Photoshop/GIMP)
Maximum compatibility matters more than file size

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How to use this tool

Drop or select images (AVIF, JPG, PNG, or WebP)

The tool auto-detects: AVIF inputs convert to your chosen format, other inputs convert to AVIF

Adjust quality if needed

Common uses

Compressing website images for faster page loads
Converting JPG photos to AVIF for 50% smaller file sizes
Converting AVIF files back to JPG or PNG for compatibility
Batch converting product images for e-commerce sites
Optimising blog images without visible quality loss

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Frequently Asked Questions

What is AVIF?

AVIF (AV1 Image File Format) is a next-generation image format based on the AV1 video codec. It delivers 50% smaller files than JPG and 20% smaller than WebP at the same visual quality.

Which browsers support AVIF?

Chrome 85+, Firefox 93+, Safari 16.4+, and Edge 121+ all support viewing AVIF images. AVIF encoding in the browser requires Chrome 121+ or Firefox 131+.

Why convert to AVIF?

AVIF dramatically reduces file sizes without visible quality loss. A 500KB JPG might compress to 250KB as AVIF, making pages load faster and saving bandwidth costs.

Are my images uploaded anywhere?

No. All conversion happens in your browser using the Canvas API. Your images never leave your device, important for private or sensitive photos.

Can I convert AVIF to JPG or PNG?

Yes. Drop AVIF files and choose JPG, PNG, or WebP as the output format. The tool auto-detects the direction of conversion based on input file types.

Is AVIF better than WebP?

For most photos, yes. AVIF offers 20-30% better compression than WebP at similar quality. However, WebP has broader browser support and faster encoding speed.

Does AVIF support transparency?

Yes. AVIF supports alpha channels for transparency, similar to PNG and WebP. It also supports HDR, wide colour gamuts, and animated sequences.

Why is AVIF encoding slow?

AVIF uses complex AV1 compression algorithms that require more processing power. This means encoding takes longer than JPG or WebP, but the smaller file sizes are worth the wait for web use.

Can I batch convert multiple images?

Yes. Drop or select multiple files and they'll all be converted. You can download them individually or as a single ZIP file.

What quality setting should I use?

For web images, 75-85% gives excellent quality with great compression. For high-quality archival, use 90-95%. Below 60%, compression artifacts become noticeable on detailed images.

Does Safari support AVIF encoding?

Safari can display AVIF images (16.4+) but doesn't support AVIF encoding via the Canvas API yet. For encoding, use Chrome 121+ or Firefox 131+.

Is AVIF royalty-free?

Yes. AVIF is developed by the Alliance for Open Media (Google, Apple, Mozilla, Netflix, and others) and is completely royalty-free, unlike some older formats.

Results are for general informational purposes only and should be checked before use. They are not professional advice. See our Disclaimer and Terms of Service.