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Compression reduces file size without changing dimensions. At 80% JPEG quality, the difference from the original is often imperceptible on screen. Below 40%, artifacts become visible, especially in gradients and skies.
Free, no account required, browser processing and no server upload.
Drop a file — Compress image
Drag and drop your file here · Choose a file from your device
Max 100 Mo
Compression reduces file size without changing dimensions. At 80% JPEG quality, the difference from the original is often imperceptible on screen. Below 40%, artifacts become visible, especially in gradients and skies.
Quality guide
90-100%
Archiving, printing
5-15%
70-85%
Web, email, sharing
50-70%
40-60%
Avatars, thumbnails
80-90%
PNG images compressed to JPEG may lose their transparency. If a transparent background is essential, prefer conversion to PNG with lossless compression.
Compress image helps you complete this task directly in your browser. You keep control of your data and get the result locally.
Yes. Compress image is free to use and runs in your browser without sending files or content to Lmaotools servers for processing or storage.
No. Files and content added to the tools are processed in your browser. They are not sent to Lmaotools servers for conversion or storage.
No. Open the tool, add your file or content, then get the result. Processing happens locally in your browser.