PyRank
yurymalkov

hnswlib

Header-only C++/python library for fast approximate nearest neighbors
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

hnswlib has 620K monthly downloads and 5K GitHub stars. Version 0.8.0, first published in 2019.

It is stably maintained, last released in Dec 2023.

It is built on top of numpy. It is used by 111 tracked packages, including graphrag-sdk, epochdb and django-vectordb.

Shared Repository
This package shares its GitHub repository (yurymalkov/hnsw) with 3 other packages. Stars, forks, and other GitHub metrics reflect the entire repository.
Downloads
Day
15.0K
Week
132.9K
Month
619.6K
Stars
5.3K
Forks
830
Issues
233
Version
0.8.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
55
Popularity
81
Adoption
67
Community
70
Provenance
0
How the maintenance status was determined
Last commit
100 days ago
Monthly downloads
619,598
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
619,598
Stars
5,267
Stars per 1k downloads
8.50
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
18,981
Month daily avg
20,653
Momentum
-8.1%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
Not specified
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
Package does not declare a minimum Python version.
License categories
License
Not specified
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
Package does not declare a license.
How the release cadence was determined
Last release
946 days ago
Total releases
11
Releases/year
1.6
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
54
Monthly downloads
619,598
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
66
 
Issue Burden
44.2
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
6.5%
contrib / forks
Stale Release
846d
 
PR Velocity
Active
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 9.7K
Windows 233
macOS 166

Python Versions

3.9
25.6% 2.4K
3.12
24.6% 2.3K
3.11
19.7% 1.8K
3.7
18.1% 1.7K
3.10
12.0% 1.1K

Top Countries

1. US US
8.6K
2. DE DE
393
3. IN IN
367
4. SG SG
137
5. BE BE
122
6. IL IL
91
7. CN CN
39
8. JP JP
38
9. RU RU
36
10. GB GB
31

Package Information

License
Unknown
First Release
August 23, 2019
Last Release
2 years ago
Last Commit
3 months ago
Latest Version
0.8.0
Total Releases
11
Contributors
54
Open PRs
50
Archived
No
Author
Yury Malkov and others
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links