No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
viser has 1.1M monthly downloads and 3K GitHub stars. Version 1.0.30 supports Python 3.8+, first published in 2023.
It is actively maintained under a permissive license, last released in Jun 2026.
It is built on top of imageio, msgspec and numpy. It is used by 26 tracked packages, including mjviser, mjlab and nerfstudio.
GitHub topics include visualization and web.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
71
Adoption
60
Community
50
Provenance
0
How the maintenance status was determined
Last commit
13 days ago
Monthly downloads
1,085,819
•
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
1,085,819
Stars
2,663
Stars per 1k downloads
2.45
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
25,412
Month daily avg
36,194
Momentum
-29.8%
((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
MIT
•
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
33 days ago
Total releases
108
Releases/year
33.4
•
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
47
Monthly downloads
1,085,819
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
57
Issue Burden
34.2
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
23.2%
contrib / forks
Stale Release
No
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
9.5K
Windows
897
macOS
154
Python Versions
3.12
40.9%
4.2K
3.10
20.1%
2.1K
3.13
19.1%
2.0K
3.11
18.2%
1.9K
3.14
1.6%
164
Top Countries
1.
US
8.8K
US
2.
SG
363
SG
3.
CN
244
CN
4.
DE
213
DE
5.
GB
210
GB
6.
IN
133
IN
7.
JP
130
JP
8.
KR
111
KR
9.
TW
84
TW
10.
FR
81
FR
Dependencies
10
- imageio <3.0.0,>=2.0.0
- msgspec <1.0.0,>=0.18.6
- numpy <3.0.0,>=1.0.0
- requests <3.0.0,>=2.0.0
- rich <15.0.0,>=13.3.3
- tqdm <5.0.0,>=4.0.0
- trimesh <5.0.0,>=3.21.7
- typing-extensions >=4.0.0
- websockets <17.0.0,>=13.1
- zstandard <1.0.0,>=0.20.0
33 optional dependencies
- gdown[dev]
- gdown[examples]
- hypothesis[dev]
- matplotlib[examples]
- matplotlib[dev]
- nodeenv[dev]
- opencv-python[examples]
- opencv-python[dev]
- pandas[dev]
- pandas[examples]
- playwright[dev]
- plotly[examples]
- plotly[dev]
- plyfile[dev]
- plyfile[examples]
- pre-commit[dev]
- psutil[dev]
- pyliblzfse[examples]
- pyliblzfse[dev]
- pyright[dev]
- pytest[dev]
- pytest-playwright[dev]
- pytest-xdist[dev]
- robot-descriptions[examples]
- robot-descriptions[dev]
- ruff[dev]
- torch[dev]
- torch[examples]
- tyro[dev]
- tyro[examples]
- yourdfpy[dev]
- yourdfpy[examples]
- yourdfpy[urdf]
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
MIT
First Release
April 14, 2023
Last Release
1 month ago
Last Commit
2 weeks ago
Latest Version
1.0.30
Total Releases
108
Contributors
47
Open PRs
18
Archived
No
Python Versions
3
3.8
3.9
3.10
3.11
3.12
3.13
3.14
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh