PNG Compressor
PNG Compressor is a lightweight utility for reducing the file size of PNG images on macOS. Users drag PNG files from Finder into the app, and it applies lossless compression techniques to reduce file size while preserving image quality. It is aimed at designers, web developers, and anyone who needs to optimise PNG assets for web delivery or storage without manual batch processing or complex tools.
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1 suggestionPNG Compressor has not been actively maintained — the latest recorded version is 1.1, and there is no evidence of native Apple Silicon support or recent updates. The app continues to run under Rosetta 2 today, but when Apple removes Rosetta 2 in macOS 28 (late 2027), this Intel-only app will stop launching entirely. If you rely on PNG compression, consider switching to a maintained alternative: ImageOptim is a free, actively developed tool that runs natively on Apple Silicon and handles PNG, JPEG, and other formats with excellent batch-processing support. Squash is another native option. Both are simpler to use than manual image editors for this task, and both will continue to work when Rosetta 2 is retired.
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