Image Compressor and Resizer: reduce image size in your browser
Choose an output format and quality, optionally set a maximum width or height, then compare the original and compressed sizes before you download. Your images stay on your device.
Compress your images
Drag and drop images here, or
JPG, PNG, GIF, BMP or WebP. Up to 20 files, 25 MB each.
How to use the image compressor
- Choose your images, or drag them onto the box above.
- Pick an output format and quality. Add a maximum width or height if the image is larger than you need.
- Check each result: the list shows the original size, the new size and a preview.
- Download the files you want. If a result is not smaller, keep the original.
After you change a setting, press the button that appears to process the files again.
Choosing a format and quality
- JPG suits photographs. Lower quality gives a smaller file with more visible loss.
- WebP is often smaller than JPG at similar quality, but some older software cannot open it.
- PNG is lossless and suits screenshots, logos and graphics with sharp edges. Re-encoding a PNG can make it smaller or larger, so resizing is the usual way to reduce it.
Resizing never enlarges an image. Setting a maximum width and height scales the image down to fit inside them and keeps its proportions. Converting a transparent image to JPG fills the transparent areas with white, because JPG has no transparency.
Privacy and limits
- Images are processed in your browser. The tool does not send them to a server.
- Up to 20 files at a time, 25 MB per file, and about 40 megapixels per image.
- Re-encoding normally removes embedded metadata such as camera details, and may not keep colour profiles.
- Animated GIFs are processed as a single still frame.
Frequently asked questions
How much smaller will my image be?
It depends on the image, the format and your settings, so no figure can be promised in advance. The tool shows the real result for each file.
Are my images uploaded?
No. Compression runs in your browser using built-in image features.
Why does my result say it is not smaller?
Some files are already well compressed, and re-encoding them does not help. Try a lower quality, a different format or smaller dimensions, or keep the original.