Batch Image Compression on Mac

Why batch compression matters

Optimizing images one at a time wastes hours when you have dozens or hundreds of files. Web projects, blog migrations, photography exports, and app assets all benefit from batch processing — compress everything in one step.

How to batch compress with TrimrPix

1. Open TrimrPix on your Mac
2. Select or drag hundreds of images at once — all formats mixed
3. Choose your quality level (60%–95%)
4. Click Optimize — all images are processed
5. Done. Every file is saved with a reduced size.

Watch Folder — automatic compression

TrimrPix includes a Watch Folder feature. Set any folder on your Mac as a watched folder, and every new image added to it is optimized automatically — no manual steps needed.

This is ideal for:

• Download folders — compress images as they arrive
• Screenshot folders — auto-optimize macOS screenshots
• Export directories — automatically compress exports from Figma, Sketch, or Photoshop

Supported formats

TrimrPix handles JPEG, PNG, GIF, WebP, AVIF, and HEIC in a single batch. You can mix formats freely — the app detects each file type and applies the right compression. For details on when to use each format, see the Image Formats Guide.

Use cases

• Web developers — compress site assets before deployment
• Bloggers — optimize post images before uploading to WordPress or Ghost
• Photographers — reduce file sizes for sharing or portfolio sites
• App developers — compress App Store screenshots and assets