jpg → webp
JPG to WebP
Turn JPG photos into WebP at a quality level you choose, with the size saving shown before you download.
on-device
Open
AVIF to WebP
Convert AVIF images to WebP, which older software and editors will actually open.
Convert AVIF to WebP (for wider compatibility) AVIF → WEBP
Drop AVIF images to convert them to WebP for wider browser and app support.
Drop AVIF files here
or browse — multiple files welcome
Quality
Lower quality means a smaller file. WebP keeps transparency, so any transparent areas in the AVIF are preserved.
Files are converted in your browser and never uploaded. Metadata is removed automatically.
processed in your browser · never uploaded
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How to use it
AVIF to WebP
AVIF to WebP
in three moves.
01
Add your AVIF files
Drop one or many onto the panel. They are read straight off your disk.
02
Set the quality
80 is the safe default for photographs. Lower it for smaller files, raise it for images that will be zoomed.
03
Download
Take one file, or the whole batch as a ZIP.
Formats & limits
What goes in, what comes out.
| Input | Output | Typical saving | Best for |
|---|---|---|---|
| avif | webp | −10 to +20% | Getting a file that older software will open |
| avif | webp | varies | Editors and CMSes that reject AVIF uploads |
Why this one
Built against the ways these tools disappoint.
We ran the same files through the popular alternatives first. These are the gaps we found, and what this tool does instead.
01
Converters upload your images to a server to do the work.
Everything runs in your browser using its own AVIF support — no upload, no queue, no file-size cap.
test: turn your wifi off after the page loads and convert anyway
02
Most tools do not tell you the file may get bigger.
AVIF is already very efficient, so WebP is sometimes larger. Each file shows both sizes so you can see exactly what happened.
test: convert one photo and compare the two numbers
03
Batch converters cap the free tier at ten or twenty files.
No file-count limit — your machine does the work, so there is nothing to meter.
test: drop forty files at once
The detail
How this actually works.
AVIF comes out of the AV1 video codec and compresses better than almost anything else, which is why so many sites now export it. The catch is reach: plenty of desktop editors, older phones, and content systems still won’t open a .avif file — so a format built to save bandwidth becomes the one you can’t upload.
Converting to WebP fixes that. WebP is a Google format with near-universal support across browsers, editors, and CMSes, and it keeps transparency, so a converted file drops straight into the places that reject AVIF.
One honest caveat most converters won’t tell you: WebP is usually larger than the AVIF you started with, because AVIF compresses harder. That’s a fair trade when you’re converting for compatibility, not size — and this tool shows both file sizes for every image so you see the exact difference. If shrinking the file is the goal, run the result through Compress Image afterwards.
Everything runs on your device in a modern browser — images are read off your disk, converted, and never uploaded; turn your wifi off after the page loads and it still works. Need a different target? JPG to WebP and PNG to WebP use the same engine, and the format field guide helps you pick which format to keep.
FAQ
The questions people actually type in.
Are my images uploaded to a server?
No. The conversion runs entirely inside your browser. You can turn your wifi off once the page has loaded and convert anyway.
Why won't my AVIF file open?
AVIF is a newer format. Current browsers display it, but plenty of desktop editors, older phones and content systems still reject it, which is why converting to WebP or JPG is often the quickest fix.
Is WebP smaller than AVIF?
Usually not. AVIF generally compresses better, so converting to WebP is about compatibility rather than size. The tool shows both file sizes so you can judge the trade.
Does converting AVIF to WebP lose quality?
Both are lossy, so re-encoding discards a little data. At the default 80 the difference is normally invisible at ordinary viewing size.
Can I convert several AVIF files at once?
Yes, with no file-count limit. Download them individually or as a single ZIP.
Does converting AVIF to WebP make the file bigger?
Often, yes. AVIF compresses more aggressively than WebP, so the WebP can be larger. You're converting for compatibility, not size — and the tool shows both file sizes so you see the exact difference.
How do I open an AVIF file?
Modern browsers display AVIF, but many desktop editors and older apps still can't. Converting to WebP or JPG is the quickest way to get a file that opens everywhere.
Can I convert animated AVIF?
This tool converts the first frame of an animated AVIF to a still WebP. For animation, keep the original AVIF or use a dedicated animated converter.
Next
All 47 tools
Tools people use with this one.
png → webp
PNG to WebP
Turn PNGs into much smaller WebP files with transparency intact, at a quality level you choose.
on-device
Open
image → smaller
Compress Image
Shrink images by quality level or to a target file size, and compare before and after at full zoom before you download.
on-device
Open