Image Compressor
Shrink image file size right in your browser, nothing uploaded.
Compress images online for free. Reduce the file size of PNG, JPEG and WebP photos directly in your browser — nothing is uploaded to any server. Use the compression slider to shrink large images for email, websites or social media while keeping them sharp, then save the optimized file with one click.
Frequently asked questions
Is the image compressor really free and private?
Yes. It runs entirely in your browser: your photos are never uploaded, so there is no server, no signup and nothing to pay.
How much can I reduce the size of a PNG file?
Move the slider to target a percentage of the original size, up to a 90% reduction. PNG files use lossless posterization while JPEG and WebP use smart quality tuning.
Will compression damage the quality of my photos?
At low settings the change is invisible. Stronger reductions trade a little detail for a much smaller file, and your original is never modified.
What image formats are supported?
PNG, JPEG and WebP. The output keeps the original format, so a PNG stays a PNG and a JPEG stays a JPEG.