Compress images without losing quality
A built-in quality gate checks every pixel, so the result looks identical to your original, just smaller. PNG, JPEG and WebP. Free, no sign-up.
Identical to the original, verified pixel by pixel
Spot the difference. There isn't one.
Drag the handle across the image. Left is the original, right is our compressed copy: visually identical, but 91% lighter.
Original · 2.2 MBCompressed · 193 KB
Processed in memory
Your files are handled in RAM and never written to disk.
Deleted instantly
Nothing is stored, logged or shared. The result goes straight back to you.
Free, no sign-up
No account, no watermark, no daily cap. Just drop and download.
How it works
Compresso finds the colors and details your eyes don't register and removes only those. A built-in quality gate compares every result with the original pixel by pixel. If a difference could be visible, we keep the safer version, so your image never gets worse.
Frequently asked questions
Is Compresso free?
Yes, completely free with no sign-up and no watermark. Compress as many images as you like within the per-batch limit.
Will compression reduce my image quality?
No. A built-in quality gate compares every result with the original pixel by pixel and keeps it only when the difference is invisible, so your image never looks worse.
Are my images safe?
Yes. Files are processed in memory, never written to disk, logged or shared, and the compressed copy goes straight back to your browser.
Which formats are supported?
PNG, JPEG and WebP. Each is compressed with the encoder best suited to it.
Is there a file size or count limit?
Up to 20 images per batch, 25 MB each. There is no daily cap.
How much smaller will my images get?
Typically 50 to 80 percent for PNG and around 70 percent for JPEG, with no visible difference.