Upload an image and adjust the quality slider to shrink its file size before downloading.
Large image files slow down websites, blow past email attachment limits, and eat up storage space — often without any visible difference in quality once compressed sensibly. A photo straight off a modern phone camera can easily be 4-8 MB, when the same image compressed to 80-85% quality often looks identical to the eye at a fraction of the size.
This tool uses your browser's built-in canvas image encoder to re-compress your image at a quality level you control with a single slider, showing you a live before/after file size comparison so you can find the right balance for your specific use — a smaller size for a quick email attachment, or a higher quality setting for something meant to be printed or viewed at full resolution.
It's used constantly by anyone uploading images to a website with a size limit, photographers preparing images for web use rather than print, and people trying to fit more photos into a limited email or messaging attachment. Because compression happens directly in your browser via the canvas API, your original image is never uploaded anywhere in the process.