Bulk Image Compressor — Up to 20 Files

A bulk image compressor lets you compress multiple images at once and download them all as a ZIP file. This tool processes everything in your browser — your images never leave your device.

How many images can I compress at once?

You can compress up to 20 images in a single batch. Select multiple files when uploading or drag them all into the drop zone at once. Each image is compressed individually using the quality setting you choose, and all results are packaged into a single ZIP download.

Is my data safe?

Yes. All compression and ZIP file generation happens entirely in your browser. Your images are never uploaded to any server. The ZIP file is created locally and downloaded directly to your device.

How does this compare to TinyPNG's batch mode?

TinyPNG limits batch compression to 20 files with a 5MB per-file cap, and uploads everything to their servers for processing. This tool compresses files of any size directly in your browser — your images never leave your device. There's no file size cap and no daily usage limit. Plus you get a convenient ZIP download.

How do I download all compressed images?

After compression completes, click the “Download All as ZIP” button. Your browser will generate a ZIP file containing all compressed images and download it automatically. Each compressed image is prefixed with “compressed-” so you can easily identify them.

What formats are supported?

Bulk compression supports JPG, PNG, and WebP formats. You can mix different formats in the same batch — each file is compressed according to its original format. The quality slider applies to all files equally.