Convert

Convert JPG to AVIF in bulk

Convert JPG to AVIF right in your browser. Drop one file or a whole folder; nothing is uploaded.

or drop files or a folder here, or paste

Nothing is uploaded. Free, no account.JPG
How it works

How to use it

  1. Choose your files, a whole folder, or drop them on the page.
  2. Check the settings: the defaults are already the best for most photos.
  3. Save each file, all of them as a ZIP, or straight into a folder.

Questions

How do I convert JPG to AVIF?

Choose or drop your JPG files, check the AVIF settings, and each file is converted on your device in a second or two. Then save them one by one, as a ZIP, or into a folder.

Will the picture lose quality?

AVIF is a compressed format. At the default quality the difference cannot be seen, and you can compare before and after with the slider. Raise the quality for prints, lower it for smaller files.

Can I do hundreds of files at once?

Yes. Drop a whole folder or select as many files as you like. They are processed a few at a time on all your processor cores, with progress for every file. You can pause, stop, retry, and save as a ZIP or straight into a folder.

Are my photos uploaded anywhere?

No. FotoJock runs entirely in your browser: the files are read, converted and saved on your own phone or computer. Nothing is sent to a server, and it keeps working offline once the page is open.

Is it really free?

Yes, with no account, no watermark and no limit on the number of files. FotoJock is made by Foto Jocković, a photo shop in Belgrade.

JPG (JPEG) is the most widely supported photo format: every phone, computer, website and printer opens it.

AVIF is the newest web format, based on AV1 video: often half the size of JPG, with transparency and HDR.

All tools

Mini-apps

Free photo toys by Foto Jocković, each on its own page.

All mini-apps
All mini-apps