Modern Formats
AVIF Tools
Convert AVIF images to JPG, PNG or WebP — or create AVIF from other formats. All conversion happens locally in your browser.
Every AVIF tool here runs in your browser — no upload, no queue. Decode .avif files into JPG, PNG or WebP that any app opens, or encode your images into AVIF for smaller web payloads. Encoding is the slow direction by design; decoding is quick, and HDR files come out as standard 8-bit SDR.
Honest limits
- Encoding to AVIF is slow by design — decoding back out is quick.
- HDR and 10-bit AVIF decode to standard 8-bit SDR across the family.
Need more than a browser can do? Desktop browsers go further than phones — and Media Moana converts at scale on hosted infrastructure.
How it works
Pick a tool
Decode AVIF to JPG/PNG/WebP, or encode images into AVIF.
Drop your images
Unlimited batch, processed sequentially with progress.
Download
Individually or as a ZIP. Nothing ever uploads.
Frequently asked questions
Is this safe? Do my photos get uploaded?
No upload happens — ever. AVIF conversion runs entirely inside your browser using WebAssembly. Your files never leave your device, nothing is stored on any server, and the tool even keeps working if you go offline after the page loads. That's also why there are no file size limits, no queues and no sign-up.
What is an AVIF file?
AVIF is a modern royalty-free image format based on the AV1 video codec, championed by Netflix, Google and Mozilla. It delivers noticeably smaller files than JPEG and WebP at the same visual quality and supports HDR and transparency. Browsers now display AVIF natively, but most desktop software, CMSs and upload forms still don't accept it — so files saved from the web often need converting back to JPG or PNG.
Which AVIF tool do I need?
Got an .avif file that won't open? AVIF to JPG for sharing and editing, AVIF to PNG for lossless work. Building for the web? The AVIF Converter also encodes JPG/PNG/WebP into AVIF to shrink your image payloads.
Can I convert multiple AVIF images at once?
Yes — drop in as many files as you like. Because conversion happens on your own computer instead of a server, there is no per-file fee, no daily cap and no waiting in line. Files are processed one after another, and you can download each result as it finishes or grab the whole batch as a single ZIP.
Is there a file size or quantity limit?
There is no hard limit. Server-based converters cap uploads because your files consume their bandwidth and CPU; here AVIF processing happens on your machine, so the only practical limit is your device's memory. Desktop browsers comfortably handle very large files and big batches.