PyRank
indygreg

zstandard

Python bindings to the Zstandard (zstd) compression library
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

zstandard has 171.3M monthly downloads and 636 GitHub stars. Version 0.25.0 supports Python 3.9+, first published in 2016.

It is actively maintained under a permissive license, last released in Sep 2025.

It is used by 1,048 tracked packages, including langsmith, pyiceberg and clickhouse-connect.

GitHub topics include zstd and zstandard.

Downloads
Day
5.5M
Week
39.7M
Month
171.3M
Stars
636
Forks
117
Issues
60
Version
0.25.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
59
Adoption
70
Community
60
Provenance
0
How the maintenance status was determined
Last commit
3 days ago
Monthly downloads
171,300,132
• 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
171,300,132
Stars
636
Stars per 1k downloads
0.00
• 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
5,667,470
Month daily avg
5,710,004
Momentum
-0.7%
((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
BSD-3-Clause
• 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
296 days ago
Total releases
42
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
44
Monthly downloads
171,300,132
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
75
 
Issue Burden
94.3
per 1k stars
Discussions
9.4
per 1k stars
Fork Ratio
37.6%
contrib / forks
Stale Release
292d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 3.6M
Windows 54.1K
macOS 34.7K

Python Versions

3.12
38.5% 1.3M
3.13
27.4% 951.6K
3.11
18.3% 636.2K
3.10
8.7% 301.3K
3.9
7.1% 247.1K

Top Countries

1. US US
2.7M
2. NL NL
208.9K
3. GB GB
158.9K
4. DE DE
151.1K
5. IE IE
74.5K
6. IN IN
64.8K
7. JP JP
42.8K
8. SG SG
39.8K
9. FR FR
37.5K
10. KR KR
22.1K
GitHub Topics
Tags from the package's GitHub repository describing what it does.

Package Information

License
BSD-3-Clause
First Release
September 3, 2016
Last Release
9 months ago
Last Commit
4 days ago
Latest Version
0.25.0
Total Releases
42
Contributors
44
Open PRs
14
Archived
No
Python Versions
3.9 3.10 3.11 3.12 3.13 3.14
Wheels
cp26 cp27 cp310 cp311 cp312 cp313 cp314 cp33 cp34 cp35 cp36 cp37 cp38 cp39
Keywords
zstandard zstd compression
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links