Image Compressor
Compress images client-side without quality loss
About Image Compressor
How Image Compressor Works
Upload an image and it is compressed by adjusting quality in your browser, showing before and after sizes. Processing is client-side, so your photos never leave the device.
The Image Compressor shrinks JPEG, PNG, and WebP files directly in your browser by adjusting quality, showing the before-and-after file sizes so you can judge the trade-off. A typical use case is reducing photos before uploading them to a site or attaching them to email, where every kilobyte counts. Because compression runs locally, your images are never uploaded, preserving privacy and working offline. The tool lets you preview results and pick the smallest acceptable quality, which speeds up page loads and saves bandwidth. It is ideal for bloggers, developers, and anyone preparing images for the web without installing desktop software.
Frequently asked questions
Which formats are supported?+
JPEG, PNG, and WebP, with adjustable quality for lossy formats.
Are my images uploaded?+
No. Compression happens entirely in your browser.
Will quality drop a lot?+
You control quality, so you can balance file size against visible sharpness.
Limitations
Heavy compression can introduce artifacts. Already-optimized images may see little further savings.