manifold3d
Library for geometric robustness
Decision gist · record as of 2026-08-14
Yes. Manifold3d is a mature, actively maintained library (Production/Stable status, 2220 GitHub stars) with no known vulnerabilities, permissive licensing, and straightforward installation via prebuilt wheels. Install it if you need reliable mesh Boolean operations, CAD workflows, or 3D printing preparation; skip it if you only need basic mesh I/O or visualization.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later; precompiled wheels available for current Python versions on common platforms (macOS, Linux, Windows).
- Medium install friction due to compiled wheels; however, prebuilt binaries are available for current Python versions across macOS, Linux, and Windows, and the package is actively maintained with a recent release.
License · maintenance · safety
permissive license (permissive) — Licensed under Apache Software License (permissive), allowing use in both open-source and commercial projects with minimal restrictions.
last release 2026-06-27 (48 days) · last repo commit 2026-08-11 · 2,220 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,097,205 downloads/mo, #2,756 on PyPI
Alternatives
Verify before relying
pip install manifold3d
import manifold3d as m3d
import numpy as np
# Create a simple cube and sphere, then compute their union
cube = m3d.Manifold.cube()
sphere = m3d.Manifold.sphere()
union_mesh = cube + sphere # Boolean union- Whether the package's mesh repair capabilities can handle all common non-manifold input formats without manual preprocessing.
- Performance characteristics and parallelization benefits when running on systems without TBB enabled.
- Specific Python versions supported beyond the minimum requirement of 3.9.
What it is and what it does
Manifold3d is a Python binding to a C++ geometry library for creating and manipulating manifold triangle meshes—meshes that represent solid, watertight 3D objects. It is designed for CAD, manufacturing, 3D printing, and structural analysis workflows where mesh validity is critical. The library guarantees manifold output from its operations, eliminating a long-standing open problem in mesh Boolean operations (union, intersection, difference). It supports constructive solid geometry workflows, arbitrary vertex properties, material mapping, and a suite of mesh refinement and smoothing functions.
The package depends only on numpy and has no other required dependencies. It ships with precompiled wheels for current Python versions on macOS (Intel and ARM), Linux (x86_64 and aarch64), and Windows, making installation straightforward on modern systems. The library is actively maintained, with recent releases and integration into projects like OpenSCAD, Blender, Godot Engine, and Babylon.js.
Use it for
- Perform robust Boolean operations (union, intersection, difference) on 3D meshes for CAD and design automation.
- Generate watertight manifold meshes from signed-distance functions (SDFs) as an alternative to Marching Cubes.
- Prepare 3D models for 3D printing by ensuring mesh validity and combining multiple objects with guaranteed manifold output.
- Smooth and refine triangle meshes while preserving sharp edges and controlling curvature for rendering or analysis.
- Combine geometry from multiple sources with unique materials and track object/face provenance using mesh IDs.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Manifold3d is a mature, actively maintained library (Production/Stable status, 2220 GitHub stars) with no known vulnerabilities, permissive licensing, and straightforward installation via prebuilt wheels. Install it if you need reliable mesh Boolean operations, CAD workflows, or 3D printing preparation; skip it if you only need basic mesh I/O or visualization.
Install
manifold3d on PyPI
Before you install
Medium install friction due to compiled wheels; however, prebuilt binaries are available for current Python versions across macOS, Linux, and Windows, and the package is actively maintained with a recent release.
Requires Python 3.9 or later; precompiled wheels available for current Python versions on common platforms (macOS, Linux, Windows).
License in practice
Licensed under Apache Software License (permissive), allowing use in both open-source and commercial projects with minimal restrictions.
Quickstart
pip install manifold3d
import manifold3d as m3d
import numpy as np
# Create a simple cube and sphere, then compute their union
cube = m3d.Manifold.cube()
sphere = m3d.Manifold.sphere()
union_mesh = cube + sphere # Boolean unionVerify before relying
- Whether the package's mesh repair capabilities can handle all common non-manifold input formats without manual preprocessing.
- Performance characteristics and parallelization benefits when running on systems without TBB enabled.
- Specific Python versions supported beyond the minimum requirement of 3.9.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 1 packagenumpy |
| Maintenance | Actively maintained 48 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 3,097,205 / month, #2,756 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableLicense :: OSI Approved :: Apache Software LicenseOperating System :: OS IndependentProgramming Language :: C++Topic :: Multimedia :: Graphics :: 3D Modeling |
Evidence: manifold3d-3.5.2-cp310-cp310-macosx_10_14_universal2.whl; manifold3d-3.5.2-cp310-cp310-macosx_10_14_x86_64.whl; manifold3d-3.5.2-cp310-cp310-macosx_11_0_arm64.whl; manifold3d-3.5.2-cp310-cp310-manylinux_2_26_aarch64.manylinux_2_28_aarch64.whl; manifold3d-3.5.2-cp310-cp310-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl; manifold3d-3.5.2-cp310-cp310-win_amd64.whl; manifold3d-3.5.2-cp311-cp311-macosx_10_14_universal2.whl; manifold3d-3.5.2-cp311-cp311-macosx_10_14_x86_64.whl; manifold3d-3.5.2-cp311-cp311-macosx_11_0_arm64.whl; manifold3d-3.5.2-cp311-cp311-manylinux_2_26_aarch64.manylinux_2_28_aarch64.whl; manifold3d-3.5.2-cp311-cp311-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl; manifold3d-3.5.2-cp311-cp311-win_amd64.whl; manifold3d-3.5.2-cp312-cp312-macosx_10_14_universal2.whl; manifold3d-3.5.2-cp312-cp312-macosx_10_14_x86_64.whl; manifold3d-3.5.2-cp312-cp312-macosx_11_0_arm64.whl; manifold3d-3.5.2-cp312-cp312-manylinux_2_26_aarch64.manylinux_2_28_aarch64.whl; manifold3d-3.5.2-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl; manifold3d-3.5.2-cp312-cp312-win_amd64.whl; manifold3d-3.5.2-cp313-cp313-macosx_10_14_universal2.whl; manifold3d-3.5.2-cp313-cp313-macosx_10_14_x86_64.whl
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