How to use the Compress Image
- Add one or more images
- Set the quality or a target size in KB
- Download the compressed images or a ZIP
About this tool
Reduce JPG, PNG and WebP image size by up to 80% while keeping good quality. Compress many images at once or target an exact size in KB. Compress Image is part of ToolNest's collection of free image tools. All processing happens locally in your browser, so your files stay private and nothing is uploaded.
Frequently asked questions
Is the Compress Image free to use?
Yes. Compress Image on ToolNest is completely free, with no sign-up, no watermark and no daily limits.
Are my files uploaded to a server?
No. Compress Image processes your files directly in your web browser on your own device. Your files are never uploaded, stored or seen by anyone, which makes it safe for private and confidential documents.
Is there a file size limit?
There is no fixed limit, but very large files depend on your device's memory and speed. Files up to a few hundred MB usually work well on a modern computer.
Does Compress Image work on mobile phones?
Yes. ToolNest works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux. There is nothing to install.