Compress JPG
Reduce JPEG file size in bulk
Runs in your browser. Files never leave your device.
How to use Compress JPG
- Choose or drop your images. You can add several at once.
- Adjust the settings and check the preview.
- Download the result, or every file at once as a ZIP.
About this tool
Shrink JPEG photos with MozJPEG, the encoder that produces noticeably smaller files than standard JPEG at the same visual quality. Progressive encoding and optimized Huffman tables are applied automatically.
- Works on your device. Nothing is uploaded.
- Free, with no sign-up and no watermark.
- No limits on file count or size beyond what your device can handle.
Questions and answers
What quality setting should I use?
Between 70% and 85% is the sweet spot for photos on the web. Go lower for thumbnails, higher for images you plan to print.
Can I compress many JPGs at once?
Yes. Add as many files as you want and download them all together as a ZIP.
Is Compress JPG free?
Yes. Every tool on ImgImage is free to use, with no sign-up, no watermark and no limit on how many files you process.
Are my files uploaded anywhere?
No. Your files are processed by your own browser and never leave your device. Nothing you open here is sent to a server.
Does it work on my phone?
Yes. It works in any modern browser on phones, tablets and computers. Large files are processed faster on a computer.