No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
nbformat has 80M monthly downloads and 311 GitHub stars. Version 5.10.4 supports Python 3.8+, first published in 2015.
It is minimally maintained under a permissive license, last released in Apr 2024.
It is built on top of fastjsonschema, jsonschema and jupyter-core. It is used by 1,060 tracked packages, including nbconvert, nbclient and jupyter-server.
Package Insights
Package Risks
- No releases in 549 days despite active commits
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
50
Popularity
57
Adoption
70
Community
90
Provenance
0
How the maintenance status was determined
Last commit
273 days ago
Monthly downloads
79,990,298
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
79,990,298
Stars
311
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
2,556,131
Month daily avg
2,666,343
Momentum
-4.1%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python 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 3-Clause 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
823 days ago
Total releases
40
Releases/year
3.6
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
93
Monthly downloads
79,990,298
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
79
Issue Burden
205.8
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
54.7%
contrib / forks
Stale Release
549d
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
1.8M
Windows
38.2K
macOS
19.8K
Python Versions
3.9
35.7%
579.6K
3.12
21.3%
345.6K
3.10
20.4%
331.4K
3.11
15.5%
251.1K
3.13
7.1%
115.3K
Top Countries
1.
US
1.5M
US
2.
IE
68.4K
IE
3.
NL
64.3K
NL
4.
SG
54.5K
SG
5.
DE
26.1K
DE
6.
JP
21.6K
JP
7.
IN
20.0K
IN
8.
AU
16.6K
AU
9.
BR
11.4K
BR
10.
GB
10.8K
GB
Dependencies
4
- fastjsonschema >=2.15
- jsonschema >=2.6
- jupyter-core !=5.0.*,>=4.12
- traitlets >=5.1
9 optional dependencies
- myst-parser[docs]
- pep440[test]
- pre-commit[test]
- pydata-sphinx-theme[docs]
- pytest[test]
- sphinx[docs]
- sphinxcontrib-github-alt[docs]
- sphinxcontrib-spelling[docs]
- testpath[test]
Used By
1060
- nbconvert
- nbclient
- jupyter-server
- papermill
- dbt-bigquery
- jupytext
- open3d
- nbsphinx
- nbstripout
- myst-nb
- jupyter-cache
- nbval
- creosote
- nbmake
- pycaret
- nbdime
- snakemake
- acryl-great-expectations
- fmpy
- nbtoolbelt
- solara-server
- jupyter-sphinx
- cognee
- testbook
- nb-clean
- jupyter-nbmodel-client
- open3d-cpu
- wily
- jupyterlab-git-core
- sagemaker-jupyterlab-extension-common
- pytest-notebook
- import-ipynb
- gusty
- nbparameterise
- jupyterlite-sphinx
- codegraphcontext
- pytest-check-links
- vnpy
- sklearn-evaluation
- anaconda-client
- datarobot-pulumi-utils
- datajunction-server
- df2img
- pinder
- tdfs4ds
- invenio-previewer
- lumen
- seeq-data-lab-env-mgr
- lunapi
- coala-bears
Package Information
License
BSD 3-Clause License
First Release
July 2, 2015
Last Release
2 years ago
Last Commit
9 months ago
Latest Version
5.10.4
Total Releases
40
Contributors
93
Open PRs
14
Archived
No
Python Versions
3
3.8
3.9
3.10
3.11
3.12
Wheels
py2
py3
Keywords
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh