wavedrom
WaveDrom compatible python command line
Decision gist · record as of 2026-08-14
Yes, if you need WaveDrom diagrams in Python and your target Python version is 3.7 or earlier. No, if you require active maintenance or need to use modern Python versions—the package is abandoned (last release 2022-05-27) and classifiers suggest support only through Python 3.7. Consider it for legacy projects or as a reference implementation; for new projects, verify that it works on your Python version and that no maintained fork exists.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Python version support is unclear beyond classifiers listing up to 3.7; test compatibility with your target Python version before relying on this in production.
- High install friction: the package has no runtime dependencies but is marked abandoned (last release 2022-05-27, 1540 days ago).
- Maintenance status suggests it may not receive updates for Python versions beyond those listed in classifiers (up to 3.7).
License · maintenance · safety
permissive license (permissive) — MIT license (permissive) means you can use, modify, and distribute the package freely with minimal restrictions, though you should include the license notice.
last release 2022-05-27 (1540 days) · last repo commit 2023-06-02 · 118 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 128,001 downloads/mo, #11,724 on PyPI
Alternatives
Verify before relying
pip install wavedrom
import wavedrom
svg = wavedrom.render('{"signal": [{"name": "CK", "wave": "P......."}]}')
svg.saveas("output.svg")- Whether the package actually works on Python versions beyond 3.7 despite classifiers suggesting support only up to that version.
- Current state of compatibility with modern Python 3.x releases and whether abandoned status means critical bugs will not be fixed.
- Whether sphinxcontrib-wavedrom or other downstream projects have forked or maintained this independently.
What it is and what it does
WaveDrom is a tool for rendering timing diagrams, logic circuits, and register bitfields from JSON specifications. This package is a direct Python port of the original JavaScript WaveDrom implementation, letting you generate SVG diagrams programmatically or via command line without installing Node.js. It reads WaveDrom-compatible JSON input and outputs SVG files.
The package has zero runtime dependencies and works as both a Python library (via `wavedrom.render()`) and a command-line tool (`wavedrompy`). It's used by Sphinx documentation tools to embed waveform diagrams in generated docs. The tool is a faithful translation of the original JavaScript, aiming for full compatibility rather than adding new features.
Use it for
- Generate timing diagrams for hardware documentation from JSON specifications in a Python script or Jupyter notebook.
- Render logic circuit schematics as SVG from structured data without a browser or Node.js environment.
- Embed waveform and register diagrams in Sphinx documentation via sphinxcontrib-wavedrom integration.
- Convert WaveDrom JSON files to SVG from the command line as part of a documentation build pipeline.
- Document register layouts and bitfield definitions as visual diagrams in hardware design documentation.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need WaveDrom diagrams in Python and your target Python version is 3.7 or earlier.
No, if you require active maintenance or need to use modern Python versions—the package is abandoned (last release 2022-05-27) and classifiers suggest support only through Python 3.7. Consider it for legacy projects or as a reference implementation; for new projects, verify that it works on your Python version and that no maintained fork exists.
Install
wavedrom on PyPI
Before you install
High install friction: the package has no runtime dependencies but is marked abandoned (last release 2022-05-27, 1540 days ago). Maintenance status suggests it may not receive updates for Python versions beyond those listed in classifiers (up to 3.7).
Python version support is unclear beyond classifiers listing up to 3.7; test compatibility with your target Python version before relying on this in production.
License in practice
MIT license (permissive) means you can use, modify, and distribute the package freely with minimal restrictions, though you should include the license notice.
Quickstart
pip install wavedrom
import wavedrom
svg = wavedrom.render('{"signal": [{"name": "CK", "wave": "P......."}]}')
svg.saveas("output.svg")Verify before relying
- Whether the package actually works on Python versions beyond 3.7 despite classifiers suggesting support only up to that version.
- Current state of compatibility with modern Python 3.x releases and whether abandoned status means critical bugs will not be fixed.
- Whether sphinxcontrib-wavedrom or other downstream projects have forked or maintained this independently.
Package facts
| License | permissive license permissive |
| Python support | Not specified |
| Install friction | High. Source build required |
| Runtime dependencies | None |
| Maintenance | Abandoned 1,540 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 128,001 / month, #11,724 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseProgramming Language :: Python :: 2Programming Language :: Python :: 2.7Programming Language :: Python :: 3Programming Language :: Python :: 3.3Programming Language :: Python :: 3.4Programming Language :: Python :: 3.5Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Topic :: Software Development :: Build Tools |
Evidence: wavedrom-2.0.3.post3.tar.gz
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See also schemdraw · broadbean · drawsvg · h2o-wave · attoworld · mkdocs-mermaid2-plugin · mermaid-py · mermaid-builder · markdown-graphviz-inline · pystructurizr