Upload an image, adjust the compression level, and watch the file size shrink in real time before you download.
Upload your image, then drag the compression slider or pick a preset (Low, Balanced, High). Watch the before/after size bars update live. Optionally set a max width to shrink dimensions too — this often saves the most space. Then download.
All compression happens locally using your browser's Canvas API — your image is never uploaded anywhere.
Some quality is traded for smaller file size — that's how compression works. The "Balanced" preset keeps quality loss barely noticeable while cutting size significantly.
PNG is a lossless format, so the quality slider has little effect on it. For the biggest size reduction, switch the output format to JPG or WEBP.
Combine a lower quality setting with the "Limit max width" option — reducing pixel dimensions usually saves more space than quality alone.