Image Compressor — Free Online Tool
Compress one or many images (up to 10 at once) with browser-image-compression, compare output size, and download files individually or as a ZIP. Codec and quality behaviour varies by input format and browser; no image is uploaded.
100% client-side. No uploads. Your data never leaves your browser.
How to use Image Compressor
- Drop up to 10 images into the upload area.
- Adjust the quality slider (higher = better quality, larger file; lower = smaller file, more compression).
- Per-image savings are shown in the file list.
- Click 'Download all' to save all compressed images.
Frequently Asked Questions
What is the maximum number of images I can compress at once?
Up to 10 images in a single batch.
Does compression affect image quality visibly?
It can. Inspect the output at its intended display size; visible changes depend on the source format, image content, browser codec, and chosen quality.
Which library handles the compression?
browser-image-compression performs the browser-side encoding and can use a Web Worker where supported.
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