Free Image Compressor
Make your images smaller so they load faster and are easier to share. Everything happens in your browser — your images are never uploaded.
Drag and drop images here, or click to choose files
JPG, PNG, or WebP — up to 50 MB each, batch supported
Lower quality = smaller file. 75–85% is the sweet spot for most photos. Note: converting a transparent image to JPG removes transparency (the background becomes white).
How to compress an image
- Add one or more images using the box above (drag and drop works too).
- Pick a quality level and output format.
- Press Compress images, compare the before/after sizes and previews, then download each result.
Will compression make my image look worse?
At moderate settings (75–85%), most people can't see a difference, while the file often shrinks 60–90%. Very low quality settings will visibly soften details — the preview lets you check before downloading.
Can a compressed file end up larger than the original?
Yes, occasionally — for example, saving an already-optimized JPG as PNG. When that happens, this tool tells you honestly and shows the real sizes so you can pick a different format.
Are my images uploaded anywhere?
No. Compression runs locally in your browser with the Canvas API. Nothing is sent to a server.
Which format gives the smallest file?
For photos, WebP usually wins, followed by JPG. PNG is lossless, so it stays larger — it's best for logos, icons, and screenshots that need transparency.