Free Image Compressor
Reduce the file size of your images in seconds — no uploads, no sign-up. Upload an image, drag the quality slider, and download the smaller file. Everything happens locally in your browser, so your photos never leave your device.
Frequently Asked Questions
How does the image compressor work?
Your image is re-encoded right in your browser using the HTML canvas API. You pick an output format (JPEG or WebP) and a quality level, and the tool produces a new, smaller file you can download — no server involved.
Should I choose JPEG or WebP?
WebP usually produces a noticeably smaller file than JPEG at the same visual quality, and it works in all modern browsers. Choose JPEG when you need maximum compatibility, for example with older software or email attachments.
Will compressing reduce image quality?
A lower quality setting means a smaller file but slightly less detail. You can see the compressed preview side by side with the original before downloading, so you can pick the sweet spot. Quality 80 is a good balance for most photos.
Are my images uploaded to a server?
No. Your images are processed entirely on your own device and never uploaded anywhere. You can even use this tool offline once the page has loaded.