brew

Install opencascade with Homebrew, apk, apt, dnf, MacPorts, pacman

3D modeling and numerical simulation software for CAD/CAM/CAE. Version 7.9.3 via Homebrew; verified 2026-06-25.

Install command Security notes

install

Additional install commands

macOS

Homebrewverified · 100%

brew install opencascade

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install opencascade

MacPorts ports tree · science/opencascade/Portfile · source: api.github.com

Linux

Alpine Linux apkverified · 92%

sudo apk add opencascade

Alpine Linux edge package indexes · opencascade · source: dl-cdn.alpinelinux.org

Debian aptverified · 92%

sudo apt install libocct-data-exchange-7.8

Debian stable package indexes · libocct-data-exchange-7.8 · source: deb.debian.org

Fedora dnfverified · 92%

sudo dnf install opencascade-devel

Fedora Rawhide package metadata · opencascade-devel · source: dl.fedoraproject.org

Arch Linux pacmanverified · 92%

sudo pacman -S opencascade

Arch Linux sync databases · opencascade · source: geo.mirror.pkgbuild.com

Ubuntu aptverified · 92%

sudo apt install libocct-data-exchange-7.6t64

Ubuntu 24.04 LTS package indexes · libocct-data-exchange-7.6t64 · source: archive.ubuntu.com

overview

Package summary

3D modeling and numerical simulation software for CAD/CAM/CAE

Project links

Commands and aliases

DRAWEXE
DRAWEXE-7.9.3
ExpToCasExe
ExpToCasExe-7.9.3
custom.sh
custom_gcc_64.sh
draw.sh
env.sh

history

Project history and usage

Open CASCADE Technology, often packaged as `opencascade` or OCCT, is a long-running open source C++ CAD/CAM/CAE kernel for geometric modeling, surface and solid modeling, visualization, data exchange, and application-framework services.

Project history

OCCT descends from Matra Datavision's CAS.CADE technology, associated with the Euclid CAD lineage. Open Cascade's company history traces the business back to Matra Datavision's Euclid CAD system in 1980, while the OCCT project documentation acknowledges the former Matra Datavision development team and the management decision to open the source.

The Open Cascade development portal states that OCCT has been published as an open source CAD software kernel since 1999. The same portal describes it as a full-scale open source 3D geometry library used for specialized engineering and mechanical domains including CAD, CAM, CAE, CMM, and CAQ.

Open Cascade SAS continued the commercial stewardship model around the open kernel. The company page says Open Cascade has been part of Capgemini Engineering since 2014, giving the package an unusual shape: open source CAD kernel, commercial support/vendor continuity, and broad downstream use in both free and proprietary engineering applications.

Adoption history

OCCT became a foundational open geometry kernel because high-end B-rep modeling kernels are usually proprietary and expensive. The project overview emphasizes no license fees, access to source code, product continuity, reliability, and interoperability as reasons software vendors choose it.

The development portal names FreeCAD, KiCad, Gmsh, Salome, and CAD Assistant as examples of OCCT-backed projects/products. It also reports OCCT use in more than 600 research and science articles/projects across more than 400 organizations in 48 countries, which is unusually broad evidence for a package that many users only see as a shared library dependency.

How it is used

Developers link against OCCT's C++ toolkits to build CAD viewers, solid-modeling tools, mesh pipelines, STEP/IGES/glTF/STL/OBJ import/export paths, shape-healing utilities, visualization systems, and domain-specific engineering applications.

The Homebrew package exposes developer and test utilities such as `DRAWEXE` and conversion/test harness scripts, but the main payload is the library set. OCCT users usually consume headers and libraries from build systems, while application developers use DRAW as an interactive harness for testing geometry algorithms and data-exchange behavior.

Why package nerds care

For package nerds, OCCT is the classic heavy native dependency: C++, many libraries, rendering/data-exchange dependencies, ABI concerns, and downstream packages that depend on exact geometry-kernel behavior. A small version bump can affect FreeCAD-style modeling workflows, STEP import/export correctness, or binary compatibility.

It also matters because it packages a capability that is otherwise often locked behind proprietary SDKs. Distributions shipping OCCT make real CAD and engineering software possible in open build graphs.

Timeline

1980: Matra Datavision released the Euclid CAD system, the business lineage Open Cascade cites.
Mid-1990s: The technology later known as OCCT/CAS.CADE existed as a CAD kernel lineage for engineering software.
1999: OCCT was published as an open source CAD software kernel.
2014: Open Cascade became part of Capgemini Engineering.

Related projects

Related projects include FreeCAD, KiCad, Gmsh, Salome, CAD Assistant, and other engineering tools that use OCCT for geometry, visualization, meshing, or data exchange. Related commercial context includes proprietary CAD kernels such as Parasolid and ACIS, which OCCT often replaces in open or source-available stacks.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Installs with 4 runtime dependencies.
Build metadata lists 3 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure
`DRAWEXE`	cli	global executable
`DRAWEXE-7.9.3`	cli	global executable
`ExpToCasExe`	cli	global executable
`ExpToCasExe-7.9.3`	cli	global executable
`custom.sh`	cli	global executable
`custom_gcc_64.sh`	cli	global executable
`draw.sh`	cli	global executable
`env.sh`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version7.9.3

manager updated2026-06-25

local dataok

upstreamnot checked

latest detectednot detected

https://github.com/Open-Cascade-SAS/OCCT

infoNo cached GitHub release or tag data was available.https://github.com/Open-Cascade-SAS/OCCTnone confidence

install metadata

Package metadata

Package key	brew:opencascade
Version	7.9.3
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/opencascade
Homepage	https://dev.opencascade.org/
Repository	https://github.com/Open-Cascade-SAS/OCCT
Upstream docs	https://dev.opencascade.org/doc/overview/html/index.html
License	LGPL-2.1-only
Source archive	https://github.com/Open-Cascade-SAS/OCCT/archive/refs/tags/V7_9_3.tar.gz
Last updated	2026-06-25T13:37:58+02:00
Pulse	updated
Dependencies	fontconfig, freetype, tbb, tcl-tk@8
Build dependencies	cmake, doxygen, rapidjson
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	opencascade
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

libocct-data-exchange-7.8 7.8.1+dfsg1-3

Open CASCADE Technology module for CAD data format interoperability