www.ccleaner.com
Windows, Mac
The free edition of CCleaner cleans internet cache, cookies, and history. CCleaner also fixes registry errors and uninstalls software.
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celestiaproject.space
Windows, Mac, Linux
Celestia is a space simulation that lets users explore outer-space in 3D.
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www.google.com/chrome
Windows, Mac, Linux
Chrome is a web browser from Google.
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