PyRank
CoolProp

coolprop

Thermophysical properties for the masses
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

coolprop has 5.4M monthly downloads and 1K GitHub stars. Version 8.0.0 supports Python 3.9+, first published in 2012.

It is actively maintained under a permissive license, last released in Jun 2026.

It is built on top of numpy. It is used by 79 tracked packages, including pyfluids, ccp-performance and tespy.

GitHub topics include fluid-properties and thermodynamics.

Downloads
Day
319.4K
Week
2.3M
Month
5.4M
Stars
1.0K
Forks
373
Issues
53
Version
8.0.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
67
Adoption
100
Community
90
Provenance
0
How the maintenance status was determined
Last commit
4 days ago
Monthly downloads
5,372,115
• Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
5,372,115
Stars
1,029
Stars per 1k downloads
0.19
Industry Standard
> 10,000,000 monthly downloads
• Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
325,936
Month daily avg
179,070
Momentum
+82.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.9
Cutting Edge
Minimum supported version is 3.12 or newer
• Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
MIT
• Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
9 days ago
Total releases
60
Releases/year
4.3
Rapid
Last release within 365 days and > 12 releases/year
• Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
98
Monthly downloads
5,372,115
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
• Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
99
 
Issue Burden
51.5
per 1k stars
Discussions
121.5
per 1k stars
Fork Ratio
26.3%
contrib / forks
Stale Release
No
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 304.0K
Windows 464
macOS 84

Python Versions

3.12
98.6% 300.2K
3.11
0.7% 2.1K
3.13
0.3% 1.0K
3.10
0.2% 669
3.14
0.1% 318

Top Countries

1. US US
303.6K
2. AU AU
1.0K
3. CN CN
297
4. NL NL
252
5. BE BE
213
6. NO NO
152
7. SG SG
137
8. DE DE
97
9. CA CA
80
10. IE IE
59
GitHub Topics
Tags from the package's GitHub repository describing what it does.

Package Information

License
MIT
First Release
July 24, 2012
Last Release
1 week ago
Last Commit
5 days ago
Latest Version
8.0.0
Total Releases
60
Contributors
98
Open PRs
21
Archived
No
Python Versions
3 3.9 3.10 3.11 3.12 3.13 3.14
Wheels
cp27 cp310 cp311 cp312 cp313 cp314 cp33 cp34 cp35 cp36 cp37 cp38 cp39
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links