JPG to AVIF converter
Convert JPEG images to AVIF in seconds, one at a time or in bulk. Your files are converted on your own device and never uploaded.
Private: your images are processed on your device and never uploaded.
How to convert JPG to AVIF
- Add your JPG files. Drag them in, click to choose or paste. Add as many as you like.
- Adjust if needed. The default quality suits most uses. Optionally resize large images.
- Download. Save each AVIF on its own or click “Download all” for a ZIP.
Why convert JPG to AVIF?
AVIF is the most efficient image format browsers support today. Converting JPG photos to AVIF can halve their size, ideal for image-heavy websites.
JPG is the universal photo format. Every device, browser, email client and printer can open it. AVIF is the newest web image format, based on the AV1 video codec. It often produces files around half the size of JPG.
Frequently asked questions
Why does AVIF take longer to create?
AVIF uses a far more advanced compression method than JPG, so encoding takes a little longer. Viewing the result is just as fast.
Are my images uploaded to a server?
No. Every image is processed inside your browser using WebAssembly. Nothing is sent over the internet, which also makes it fast and safe for private photos.
Is it really free? Are there limits?
Yes. It’s free with no sign-up, no watermark and no daily limit. Your own device does the work, so there is no server cost per image.
Is image quality affected?
The default quality setting produces results that look the same as the original. Move the slider to 95–100 for maximum quality.
Does it work on my phone?
Yes. It works in any modern browser on iPhone, Android, Mac, Windows and Chromebook. You can also add it to your home screen and use it offline.