PyRank
google-deepmind

chex

Chex: Testing made fun, in JAX!
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

chex has 2.1M monthly downloads and 944 GitHub stars. Version 0.1.92 supports Python 3.11+, first published in 2020.

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

It is built on top of absl-py, jax and jaxlib. It is used by 153 tracked packages, including distrax, alphafold-colabfold and dm-pix.

Downloads
Day
63.5K
Week
441.6K
Month
2.1M
Stars
944
Forks
69
Issues
26
Version
0.1.92

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
60
Adoption
60
Community
60
Provenance
100
How the maintenance status was determined
Last commit
8 days ago
Monthly downloads
2,140,718
• 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
2,140,718
Stars
944
Stars per 1k downloads
0.44
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
63,089
Month daily avg
71,357
Momentum
-11.6%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.11
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 Software License
• 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
24 days ago
Total releases
30
Releases/year
5.1
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
58
Monthly downloads
2,140,718
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
58
 
Issue Burden
27.5
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
84.1%
contrib / forks
Stale Release
No
 
PR Velocity
Active
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 31.4K
macOS 708
Windows 702

Python Versions

3.12
44.9% 14.4K
3.11
34.8% 11.2K
3.10
10.2% 3.3K
3.13
5.3% 1.7K
3.9
4.8% 1.5K

Top Countries

1. US US
25.8K
2. SG SG
1.8K
3. SE SE
1.1K
4. NL NL
842
5. JP JP
511
6. IE IE
501
7. GB GB
379
8. CA CA
277
9. CN CN
268
10. HK HK
265

Package Information

License
Apache Software License
First Release
August 7, 2020
Last Release
3 weeks ago
Last Commit
1 week ago
Latest Version
0.1.92
Total Releases
30
Contributors
58
Open PRs
45
Archived
No
Python Versions
3
Wheels
py3
Keywords
jax testing debugging python machine learning
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links