Bulk Image Compressor
Compress a single image or a whole batch directly in your browser — adjust quality and output format, see before/after size for each image and the total savings, then download.
Add images
or drag and drop them here
Add one or more images to compress them.
Your files are processed locally in your browser. They are not uploaded to our servers.
How to use
- Add one or more images from your device.
- Adjust the quality slider and output format until the results look right.
- Download a single compressed image or all of them at once as a ZIP.
What is this tool?
Bulk Image Compressor re-encodes each image at a lower quality using your browser's built-in canvas engine, letting you keep the original format or convert to JPG, PNG or WebP. It shows the before/after size for every image plus the total savings across the whole batch. The whole process happens on your device — images are never uploaded to a server.
Common uses
- Shrinking a batch of product or listing photos before uploading them
- Speeding up a website or email by using smaller images
- Saving storage space on a device or in the cloud
- Preparing a set of images for social media or messaging apps
Related tools
FAQ
Is my image uploaded anywhere?
No. The compression happens entirely in your browser using canvas rendering — images never leave your device.
Can I compress more than one image at once?
Yes, add as many images as you like — each one is compressed individually and you can download them all as a ZIP.
Will compressing reduce the image dimensions?
No, only the file size changes based on the quality and format you choose — the width and height stay the same.