Batch Compress Multiple Images Online Free
Overview
Compressing a product catalog of 200 images one by one takes hours. The batch compressor processes all of them in parallel, applying your quality and dimension settings uniformly. Download the compressed images as a single ZIP, ready to upload to your site or CMS.
How to Use This Tool
Drag all your images into the uploader. Set the target quality (default 80%) and optionally a max width. Click Compress All. Download the ZIP archive containing all compressed images with original filenames.
Ready to get started? It's free, no registration required, and your files never leave your device.
PDF Tool →Frequently Asked Questions
How many images can I batch compress at once?
Up to 50 images per batch. For larger sets, compress in batches of 50 and download each ZIP separately.
Does batch compression keep the original file format?
Yes. JPG files stay JPG, PNG files stay PNG. The compressor does not change format, only file size and dimensions.
What compression ratio should I use for a website?
For web use, 75-80% JPG quality typically reduces file size by 60-70% with no visible quality loss on screen. Target under 150KB per image for homepage hero images and under 80KB for product thumbnails.