widgetsnbextension
Jupyter interactive widgets for Jupyter Notebook
Decision gist · record as of 2026-08-14
Yes, if you use classic Jupyter Notebook and want interactive widgets. It is a low-friction, permissively licensed dependency with no runtime overhead. The aging maintenance status is not a blocker for stable use, but verify compatibility with your specific Notebook version. Always pair it with a corresponding kernel-side widget package.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires a corresponding kernel-side widget package installed in the kernel to function; this extension alone provides only the frontend layer.
- Low install friction with a pure-Python wheel distribution.
- Maintenance status is aging (286 days since last release), though the package supports current Python versions through 3.13.
License · maintenance · safety
BSD 3-Clause License (permissive) — BSD 3-Clause License (permissive) places no restrictions on use, modification, or redistribution in proprietary or open-source contexts.
last release 2025-11-01 (286 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 44,628,688 downloads/mo, #628 on PyPI
Alternatives
Verify before relying
pip install widgetsnbextension
# Extension works transparently in classic Jupyter Notebook once installed
# Pair with a kernel-side widget package for interactive controls- Whether the aging maintenance status (286 days) reflects active stability or reduced development pace.
- Compatibility details with specific Jupyter Notebook versions beyond Python version support.
- Specific kernel-side widget packages that pair with this extension.
What it is and what it does
widgetsnbextension is a Jupyter Notebook extension that makes interactive widgets available in the classic Notebook interface. It provides the JavaScript controls and communication layer that allows widget objects running in the kernel to be rendered and controlled from the browser. Without this extension, kernel-side widget packages cannot display or respond to user interaction in classic Notebook.
The package is a pure-Python wheel with no runtime dependencies, making it straightforward to install. It is designed as a companion to kernel-side widget libraries—users typically install this extension in the Notebook environment alongside a corresponding widget package in the kernel. The extension has no direct user API; it works transparently once installed to enable widget rendering.
Use it for
- Display interactive controls in classic Jupyter Notebook cells alongside computation results.
- Build data exploration interfaces in Notebook using interactive elements to control parameters or filter datasets.
- Create educational notebooks with interactive controls for demonstrating concepts without requiring alternative notebook environments.
- Enable real-time parameter adjustment in scientific workflows where users modify inputs and see results update in the same notebook.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you use classic Jupyter Notebook and want interactive widgets.
It is a low-friction, permissively licensed dependency with no runtime overhead. The aging maintenance status is not a blocker for stable use, but verify compatibility with your specific Notebook version. Always pair it with a corresponding kernel-side widget package.
Install
widgetsnbextension on PyPI
Before you install
Low install friction with a pure-Python wheel distribution. Maintenance status is aging (286 days since last release), though the package supports current Python versions through 3.13.
Requires a corresponding kernel-side widget package installed in the kernel to function; this extension alone provides only the frontend layer.
License in practice
BSD 3-Clause License (permissive) places no restrictions on use, modification, or redistribution in proprietary or open-source contexts.
Quickstart
pip install widgetsnbextension
# Extension works transparently in classic Jupyter Notebook once installed
# Pair with a kernel-side widget package for interactive controlsVerify before relying
- Whether the aging maintenance status (286 days) reflects active stability or reduced development pace.
- Compatibility details with specific Jupyter Notebook versions beyond Python version support.
- Specific kernel-side widget packages that pair with this extension.
Package facts
| License | BSD 3-Clause License permissive |
| Python support | Supports the current Python release >=3.7 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Aging 286 days since the last release |
| First released | |
| Downloads | 44,628,688 / month, #628 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Framework :: JupyterIntended Audience :: DevelopersIntended Audience :: Science/ResearchIntended Audience :: System AdministratorsLicense :: OSI Approved :: BSD LicenseProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.9 |
Evidence: widgetsnbextension-4.0.15-py3-none-any.whl
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