Image Compressor
Shrink JPG, PNG and WebP photos with a quality slider — see exactly how much space you save before downloading.
Large photos slow down websites and eat phone storage. This free image compressor shrinks your JPG, PNG and WebP files right in your browser using an adjustable quality slider, so you control the trade-off between size and sharpness. It shows the original and compressed sizes side by side with the exact percentage saved.
Upload a JPG, PNG or WebP image to begin. Nothing is uploaded — everything runs on your device.
How to use the Image Compressor
- Upload a JPG, PNG or WebP image using the drop zone above.
- Drag the quality slider to choose your balance of size and sharpness, then press Compress to see the before and after sizes.
- Press Download compressed image to save the smaller file to your device.
Image Compressor — FAQs
Is this image compressor free?
Yes, completely free with no signup and no usage limits. You can compress as many JPG, PNG or WebP images as you like. Everything happens inside your own browser, so there are no queues, no watermarks and no hidden charges of any kind.
Will compression reduce my image quality?
Lowering the quality slider shrinks the file by discarding fine detail, so very low values can look blurry or blocky. Start around 80 percent, which usually cuts the size dramatically while keeping the photo sharp. Check the preview and adjust the slider until you are happy with the result.
Are my photos uploaded to a server?
No. The tool reads your file locally with the FileReader API and compresses it on a canvas inside your browser. Your images never leave your device, never touch our servers and are never stored anywhere. You can even use this page offline once it has loaded.
Why does the quality slider barely affect PNG files?
PNG is a lossless format, so its size hardly changes with a quality value. Photos without transparency are converted to JPEG here, which shrinks them far more. If your PNG needs transparency, keep it as PNG and accept the larger file, or use the format converter instead.