What is Image to AVIF Converter?

Convert JPEG, PNG, WebP, and HEIC images to AVIF for much smaller file sizes without losing visible quality. AVIF can compress up to 50% better than JPEG, which means faster-loading pages.

AVIF combines AV1 video compression with image-specific tooling, giving roughly 50% smaller files than JPEG at the same visual quality and beating WebP by 20-30% on most photos. The quality slider (0-100) controls compression strength; the tool reads JPEG, PNG, WebP, GIF, HEIC, and HEIF inputs (iPhone photos included), encodes each one privately on this page, and shows the size savings before you download. Tweak the slider after converting and hit Reconvert all to re-encode every card at the new quality, or copy a finished image straight to the clipboard for pasting into design tools.

How to use

1. Step 1 — Upload one or more images by dragging them into the drop zone. Supports JPEG, PNG, WebP, GIF, plus HEIC and HEIF photos straight from iPhone or modern Android cameras.
2. Step 2 — Adjust the quality slider to balance file size vs. image quality. The preview shows compression results in real time.
3. Step 3 — Download individual AVIF files or all converted images at once. File size savings are displayed for each image.

When to use

• Cutting page weight on a photography portfolio or e-commerce product gallery.
• Preparing hero images for a website where Largest Contentful Paint matters.
• Archiving JPEG photo collections at a fraction of the disk space without visible loss.

Result

A web developer uploads a 2.4 MB product photo (JPEG). At quality 75 the AVIF output is just 380 KB, an 84% reduction, with no visible quality difference. The page loads noticeably faster.

FAQ

Will AVIF files actually display in every browser visitors use?

Chrome 85+, Firefox 93+, Edge 121+, and Safari 16.4+ all decode AVIF. That covers about 95% of global traffic. For older browsers, use the picture element with a JPEG fallback so they get the legacy file automatically.

What quality setting should I pick for web photos?

Quality 70-80 is the sweet spot for photographs: roughly 75% smaller than JPEG quality 90 with no perceptual difference. Drop to 60 for thumbnails. Push to 90 if you need near-lossless for prints. The savings indicator updates live.

Why does the first conversion feel slow?

The first conversion downloads a one-time ~1.5 MB WebAssembly encoder, so expect a brief pause. After that it stays cached for the rest of the session and subsequent images encode immediately. AVIF is also genuinely CPU-heavy compared to JPEG, so a 4K photo can take a few seconds even on a fast machine.

Does AVIF support transparency like PNG?

Yes. AVIF preserves the alpha channel, so PNG inputs with transparent backgrounds keep their transparency in the output. The compression on transparent regions is highly efficient — often 90% smaller than the equivalent PNG.

Are AVIF and HEIC the same format?

They share the same container (HEIF) but use different codecs. HEIC uses HEVC, which has patent fees; AVIF uses AV1, which is royalty-free, so it won out on the open web. AVIF also has slightly better compression on photos.

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