How to Batch Convert Photos on Mac (Many at Once)

By NUR Technologies · October 28, 2026 · 4 min read

Converting photos one by one is slow. Whether you have 20 pictures or 2,000, a Mac can change their format in a batch, without uploading them anywhere.

Option 1: Finder Quick Action (free)

1. Select the photosIn Finder, select all the images you want to convert.
2. Convert themRight-click and choose Quick Actions > Convert Image, then pick the format and size.

Option 2: Preview (free)

1. Open them togetherSelect the photos in Finder and open them in Preview.
2. Select all thumbnailsShow the sidebar and press Command-A.
3. Export themChoose File > Export Selected Images, then pick the format and a destination folder.

Option 3: Simple Archive Converter (for big jobs)

Simple Archive Converter converts images in bulk: PNG, JPG, HEIC, WebP, AVIF and more. Drop in the files or the whole folder, choose the output format and convert. Everything runs on your Mac and nothing is uploaded.

1. Drop your filesDrag the photos or the folder into the window.
2. Choose the formatPick the output format.
3. ConvertStart the conversion and get the whole batch at once.