Reduce the File Size of Your Images
Upload one or more JPG, PNG or WebP images and choose how much to compress them: set the quality with a slider, or enter a maximum size in kilobytes and the tool finds the best quality that fits. Each result shows the old and new size and how much you saved, and you can download the images one by one or all together as a ZIP.
PNG images are compressed by reducing them to an optimised colour palette, keeping transparency, while JPG and WebP are re-encoded at the chosen quality. Everything happens in your browser, so your photos are never uploaded.
Why Use This Image Compressor?
- Compress JPG, PNG and WebP — many images at once
- Quality slider or an exact target size in KB
- See the saving for every image before you download
- Works in your browser — no upload, no sign-up
How to Compress an Image
- Select or drag your images into the upload area
- Choose the quality or a maximum size, and the output format if you want to change it
- Click "Compress" and download the smaller images
Frequently Asked Questions
Is this image compressor free?
Yes, it is completely free, with no limits on the number of images and no watermark.
How much smaller will my images get?
It depends on the image. Photos taken with a phone often shrink by 60–80% at quality 75 with no visible difference. If an image is already well optimised and cannot be made smaller, the original is kept.
How are PNG images compressed?
PNG is a lossless format, so the tool reduces the number of colours to an optimised palette of up to 256 colours with gentle dithering. This usually makes PNG files 50–70% smaller and keeps transparency. For photos, converting to JPG or WebP gives even smaller files.
Are my images uploaded to a server?
No. Compression runs entirely in your browser; your images never leave your device.