PyRank
wbolster

jsonlines

python library to simplify working with jsonlines and ndjson data
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

jsonlines has 15.6M monthly downloads and 305 GitHub stars. Version 4.0.0 supports Python 3.8+, first published in 2015.

It is showing limited recent maintenance under a permissive license, last released in Sep 2023.

It is used by 319 tracked packages, including inspect-ai, docling-ibm-models and maggma.

Downloads
Day
391.8K
Week
3.1M
Month
15.6M
Stars
305
Forks
31
Issues
3
Version
4.0.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
30
Popularity
49
Adoption
60
Community
30
Provenance
0
How the maintenance status was determined
Last commit
701 days ago
Monthly downloads
15,575,426
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
15,575,426
Stars
305
Stars per 1k downloads
0.02
• 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
444,837
Month daily avg
519,181
Momentum
-14.3%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.8
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
• 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
1040 days ago
Total releases
11
Releases/year
1.0
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
9
Monthly downloads
15,575,426
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
33
 
Issue Burden
9.8
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
29.0%
contrib / forks
Stale Release
339d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 232.1K
Windows 8.2K
macOS 5.2K

Python Versions

3.12
51.4% 120.9K
3.11
19.2% 45.2K
3.10
14.1% 33.2K
3.13
11.8% 27.7K
3.14
3.4% 8.0K

Top Countries

1. US US
194.1K
2. DE DE
6.7K
3. CA CA
4.4K
4. SG SG
4.1K
5. CH CH
3.9K
6. NL NL
3.3K
7. GB GB
2.5K
8. AU AU
2.5K
9. IE IE
2.2K
10. IN IN
2.1K

Package Information

License
BSD
First Release
March 2, 2015
Last Release
2 years ago
Last Commit
1 year ago
Latest Version
4.0.0
Total Releases
11
Contributors
9
Open PRs
1
Archived
No
Author
wouter bolsterlee
Python Versions
3
Wheels
py2 py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links