Free image converter
Convert images to WebP or AVIF, free.
Turn PNG, JPEG, and GIF files into smaller WebP or AVIF images. The conversion runs in your browser, so your images never leave your device.
Why convert to WebP or AVIF?
Both formats compress far better than PNG and JPEG, so pages load faster, especially on phones.
Smaller files
Typically 25-35% smaller than JPEG and 30-50% smaller than PNG at the same visual quality.
Faster pages
Smaller images load sooner, which helps Core Web Vitals and the visitor waiting on them.
Easier on phones
Less data to download on slower mobile connections.
Private
Everything happens in your browser. We never receive, store, or see your images.
How to use it
Add your images
Drag images onto the converter or click to choose them. Up to 10 MB each.
Pick a format
WebP for the widest browser support, AVIF for the smallest files.
Download
Compare the before and after sizes, then save the converted files.
WebP or AVIF?
WebP
Use for most sitesSupport: Every modern browser, including Safari 14 and later.
Size: Typically 25-35% smaller than JPEG.
Best for: General web use and WordPress sites.
AVIF
Smallest filesSupport: Current Chrome, Edge, Firefox, and Safari.
Size: Up to 50% smaller than JPEG.
Catch: Encoding is slower, and some browsers encode it poorly. Fall back to WebP if the result is not smaller.
Questions
Is the image converter really free?
Yes. There is no sign-up, no account, and no limit on how many images you convert.
Do my images get uploaded?
No. The conversion runs in your browser, so the files never reach our servers.
Which format should I use for my website?
WebP, unless you have a reason not to. It works in every modern browser and is much smaller than JPEG or PNG. Use AVIF when the smallest possible file matters.
Want a site that is fast without the busywork?
We build and host websites with optimized images from the start.