jpg / png / heic → webp / avif
Convert images to WebP or AVIF online
Drop a JPG, PNG or HEIC — download a lightweight WebP or AVIF. Pages with these images load faster and rank better.
Files are processed via the App-Kit API — the same engine is available to developersDrop your images here
or click to browse files
JPG · PNG · GIF · BMP · TIFF · HEIC · up to 100 MB · up to 5 files
Conversion settings
Output format
Files are converted via the App-Kit API.
how to
How to convert to WebP or AVIF
01
Drop your files
Drag images into the box above, or click to browse. Up to 5 files, 100 MB each.
02
Convert
Pick the format — WebP or AVIF — and press Convert. Processing runs through the App-Kit API.
03
Download the result
Save files one by one or grab them all as a zip archive.
why webp & avif
When WebP and AVIF are the right choice
JPG and PNG are everywhere, but they are heavy for the web. At the same visual quality WebP and AVIF are several times smaller — pages load faster, Core Web Vitals improve, rankings follow.
- Several times smaller at the same visual quality
- Transparency and animation support
- Native support in every modern browser
Just need compression?
The Image Compressor shrinks files without visible quality loss — free, no sign-up.
Open the Image Compressorfaq
Frequently asked questions
Not visibly: the engine tunes parameters so the difference is imperceptible while the file gets noticeably smaller. Illustrations and screenshots have dedicated profiles.
Yes. Both WebP and AVIF fully support alpha channels — transparent areas of your PNG stay transparent.
Yes — conversion runs through the App-Kit API (webp.api.app-kit.ru): the file is sent to the server, converted and returned right away. We do not keep your images longer than needed to serve the result.