PyRank
facebookresearch

fvcore

Collection of common code that's shared among different research projects in FAIR computer vision team.
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

fvcore has 1.5M monthly downloads and 2K GitHub stars. Version 0.1.5.post20221221 supports Python 3.6+, first published in 2019.

It is stably maintained under a permissive license, last released in Dec 2022.

It is used by 58 tracked packages, including pipablepytorch3d, jj-pytorchvideo and onnx2kerastl.

Downloads
Day
30.7K
Week
243.7K
Month
1.5M
Stars
2.2K
Forks
237
Issues
40
Version
0.1.5.post20221221

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
70
Adoption
60
Community
70
Provenance
0
How the maintenance status was determined
Last commit
34 days ago
Monthly downloads
1,466,829
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
1,466,829
Stars
2,245
Stars per 1k downloads
1.53
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
34,818
Month daily avg
48,894
Momentum
-28.8%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.6
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
Apache 2.0
• 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
1293 days ago
Total releases
192
Releases/year
29.4
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
91
Monthly downloads
1,466,829
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
64
 
Issue Burden
17.8
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
38.4%
contrib / forks
Stale Release
1259d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 17.2K
Windows 4.3K
macOS 247

Python Versions

3.12
34.7% 7.3K
3.11
33.4% 7.1K
3.10
20.9% 4.4K
3.13
9.3% 2.0K
3.8
1.8% 383

Top Countries

1. US US
15.0K
2. JP JP
879
3. SG SG
864
4. KR KR
619
5. RU RU
420
6. DE DE
404
7. CN CN
298
8. CA CA
239
9. NL NL
237
10. FR FR
210

Package Information

License
Apache 2.0
First Release
December 30, 2019
Last Release
3 years ago
Last Commit
1 month ago
Latest Version
0.1.5.post20221221
Total Releases
192
Contributors
91
Open PRs
14
Archived
No
Author
FAIR
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links