No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
ncnn has 240K monthly downloads and 23K GitHub stars. Version 1.0.20260526 supports Python 3.5+, first published in 2020.
It is actively maintained under a permissive license, last released in May 2026.
It is built on top of numpy, opencv-python and portalocker. It is used by 2 tracked packages, including cropedgeai and jaimead7-vimi.
GitHub topics include inference, high-preformance and simd.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
91
Adoption
73
Community
80
Provenance
0
How the maintenance status was determined
Last commit
3 days ago
Monthly downloads
239,825
•
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
239,825
Stars
23,481
Stars per 1k downloads
97.91
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
8,556
Month daily avg
7,994
Momentum
+7.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.5
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
BSD-3
•
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
41 days ago
Total releases
37
Releases/year
6.3
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
369
Monthly downloads
239,825
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
91
Issue Burden
45.6
per 1k stars
Discussions
2.3
per 1k stars
Fork Ratio
8.3%
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
4.5K
macOS
891
Windows
634
Python Versions
3.12
56.3%
3.3K
3.13
20.2%
1.2K
3.11
15.2%
892
3.8
4.7%
275
3.10
3.7%
215
Top Countries
1.
US
5.7K
US
2.
CN
190
CN
3.
DE
90
DE
4.
JP
65
JP
5.
SG
29
SG
6.
IN
26
IN
7.
GB
24
GB
8.
VN
24
VN
9.
FR
21
FR
10.
KR
20
KR
Dependencies
5
Used By
2
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
BSD-3
First Release
September 4, 2020
Last Release
1 month ago
Last Commit
4 days ago
Latest Version
1.0.20260526
Total Releases
37
Contributors
369
Open PRs
89
Archived
No
Author
nihui
Python Versions
3
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
Wheels
cp310
cp311
cp312
cp313
cp314
cp35
cp36
cp37
cp38
cp39
pp310
pp311
pp36
pp37
pp38
pp39
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh