Compress images online for free and shrink JPG, PNG, and WebP files in seconds. Adjust the quality, cap the width, and pick your output format — no sign-up, no watermark, and your images never leave your computer.
Your images never leave your computer — compression runs 100% in your browser.
How to use the Image Compressor
- Drop an image into the upload zone or click to browse your files.
- Set the quality (80% is a great default), optionally cap the max width, and choose JPEG, PNG, or WebP output.
- Click Compress image to see the before and after sizes, then Download compressed image.
Frequently asked questions
How much can I compress an image?
It depends on the format and content. Photos saved as JPEG at 70 to 80 percent quality are often 50 to 80 percent smaller with barely any visible difference. PNG graphics with flat colors compress less because they are already efficient.
Will compression reduce image quality?
Lower quality settings discard more detail. For photos, 80 percent is a sweet spot between size and looks. The side-by-side preview lets you compare before you download.
Are my images uploaded anywhere?
No. Compression runs entirely in your browser using the canvas API. Your images never leave your computer.