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How to Clean JPEG Compression Artifacts on Mac

JPEG Cleanup is designed for compression damage without changing output scale. It is the correct first test when blocks, ringing, and mosquito noise matter more than size.

Sourcecompressed JPEG

Start withJPEG Cleanup

ControlCompare the full result with the source

Steps

Settings to try in order.

Import the JPEG

Select JPEG Cleanup

Process before adding extra sharpness

Use Wipe view around text and high-contrast edges

Add restrained finishing only if needed

Save after checking the full image

Checks

Three things to check before exporting.

Cleanup and upscaling solve different problems

Inspect flat color areas as well as edges

Avoid repeated JPEG exports

Apply the steps to your source.

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