How to Batch Compress Images

Updated June 2026 · 3 min read

Compressing one image is easy. Compressing 50 is a different problem. Here are the fastest ways, ranked by how much time they'll save you.

Fastest method: Use our batch compressor — drag up to 50 files at once, select your format and quality, hit Compress, download all as ZIP. No install, no upload, free.

Browser Tool (Zero Setup, Works Everywhere)

  1. Go to compress2png.com
  2. Drag 50 images at once — no file size limits
  3. Pick format — JPG for smallest, WebP for best ratio, PNG for lossless
  4. Click Compress
  5. Download ZIP with all files

Desktop: XnConvert (Free, Cross-Platform)

XnConvert handles bulk image compression with a visual workflow. Add a folder of images, set output format to JPG at 85% quality, and run. It'll process hundreds of files unattended while you do something else. Free for personal and commercial use.

Command Line: ImageMagick (For Developers)

mogrify -quality 85 -format jpg *.png — one line, converts every PNG in the folder to compressed JPG. Install with brew install imagemagick (Mac) or apt install imagemagick (Linux).