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Pngyu

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Free

Free

Free Software released under the BSD License

Every plan, in full

On the record

API access
Nonukesaq88.github.io · read 24 Sep 2026
Batch processing
Yesnukesaq88.github.io · read 24 Sep 2026
Batch workflow
Users can drag and drop multiple PNG files into the app and start compression with the Compress Start button.nukesaq88.github.io · read 11 Oct 2026
Compression engine
Pngyu uses pngquant as its compression engine.nukesaq88.github.io · read 11 Oct 2026
Compression modes
lossynukesaq88.github.io · read 24 Sep 2026
Compression settings
The Compress Option can be changed to Custom for detailed compression settings.nukesaq88.github.io · read 11 Oct 2026
Default output
By default, compressed files overwrite the input files.nukesaq88.github.io · read 11 Oct 2026
Downloads
The homepage offers macOS and Windows versions, both listed as version 1.0.5.nukesaq88.github.io · read 11 Oct 2026
How compression works
pngquant converts 24-bit or 32-bit full-color PNG files to 8-bit indexed color.nukesaq88.github.io · read 11 Oct 2026
Integrations
The repository describes Pngyu as a front-end GUI application for pngquant.github.com · read 11 Oct 2026
Irreversible processing
Compression includes color reduction, so the original image cannot be restored from the compressed image; the maker advises backing up important files first.nukesaq88.github.io · read 11 Oct 2026
License
The project repository says Pngyu is distributed under the BSD license and that pre-built binaries include pngquant, licensed under GPL v3 or later.github.com · read 11 Oct 2026
macOS launch note
The maker says that because the app is independently distributed, macOS may require users to choose Open Anyway in Privacy & Security on first launch.nukesaq88.github.io · read 11 Oct 2026
Output settings
The Output Option can be changed to Custom to change the output destination or file name.nukesaq88.github.io · read 11 Oct 2026
Preview
Selecting a file and clicking Preview opens a window to check the result using the current settings.nukesaq88.github.io · read 11 Oct 2026
Purpose
Pngyu is a PNG image compression tool for batch compressing multiple PNG files.nukesaq88.github.io · read 11 Oct 2026
Support
Bug reports, feedback, and feature requests are accepted through GitHub Issues, Twitter, and email.nukesaq88.github.io · read 11 Oct 2026
Supported formats
PNGnukesaq88.github.io · read 24 Sep 2026

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