Compression desk

Compress images without uploading them

Re-encode images at a practical quality level and compare the result before downloading. PNG files remain lossless; JPG and WebP respond to the quality control.

Browser-only conversionNo account requiredClear limits, no surprise uploads
FromAuto
ToWEBP
Local
Drop images on the worktableor choose files from your device
Choose imagesPNG, JPG and WebP · up to 20 filesNothing is uploaded. Processing happens in this browser.
Nothing is uploaded. Processing happens in this browser.

01 / PROCESS

How it works

  1. Add up to 20 PNG, JPG or WebP files.
  2. Keep the format or select another output format.
  3. Adjust quality, convert and compare file sizes.

02 / FORMAT NOTES

Why use this format?

Know what changed

Each result shows its old and new byte size.

Resize at the same time

Lowering dimensions often saves more than aggressive compression.

Keep private images local

Files are processed inside the browser.

03 / FAQ

Questions people ask

Does lower quality always mean a smaller file?

Usually for JPG and WebP, but the exact result depends on image content and the browser encoder.

Can PNG quality be adjusted?

Canvas exports PNG losslessly, so the quality slider does not change PNG output in most browsers.

Can output become larger?

Yes. Re-encoding a well-optimized source can produce a larger file; ImageRivet shows the comparison.