Project Summary
An X11 server and client libraries for macOS
In a Nutshell, XQuartz...
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has a well established, mature codebase
maintained by a small development team
with increasing Y-O-Y commits -
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took an estimated 204 years of effort (COCOMO model)
starting with its first commit in November, 1999
ending with its most recent commit about 1 month ago
Apple Public Source License 2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Forbidden
Hold Liable
Use Trademarks
Required
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
MIT License
Permitted
Commercial Use
Modify
Distribute
Sub-License
Private Use
Forbidden
Hold Liable
Required
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
MIT Open Group variant
Permitted
Forbidden
Required
These details are provided for information only. No information here is legal advice and should not be used as such.
SGI Free Software License B v1.1
Permitted
Forbidden
Required
These details are provided for information only. No information here is legal advice and should not be used as such.
X11 License
Permitted
Forbidden
Required
These details are provided for information only. No information here is legal advice and should not be used as such.
XFree86 License 1.0
Permitted
Forbidden
Required
These details are provided for information only. No information here is legal advice and should not be used as such.
This Project has No vulnerabilities Reported Against it
Did You Know...
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learn about Open Hub updates and features on the Open Hub blog
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nearly 1 in 3 companies have no process for identifying, tracking, or remediating known open source vulnerabilities
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30 Day SummaryAug 18 2026 — Sep 17 2026
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12 Month SummarySep 17 2025 — Sep 17 2026
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