ImplicitCAD

Free plan

What the maker publishes

Export formats

The online editor lists STL, OBJ, SVG, DXF, and 2D G-code for a Hacklab laser cutter as output options. source

Free plan

Yes source

Geometry

The FAQ says ImplicitCAD supports rounded unions and a wider range of primitives and transformations than OpenSCAD. source

Geometry features

The FAQ highlights rounded unions and says ImplicitCAD supports a wider range of primitives and transformations than OpenSCAD. source

GitHub integration

The website can open projects from a URL in its online editor, including raw GitHub file URLs. source

GitHub integration

The FAQ says the website can open a project in its editor from a URL pointing to a raw GitHub-hosted file. source

GUI and API server

The FAQ says ImplicitCAD has no GUI, and mentions implicitsnap.hs as a way to compile a REST API server. source

Intended users

The FAQ describes ImplicitCAD as intended to be a serious CAD program; the home page discusses designing precise, parameterized objects for 3D printing. source

Intended users

The project describes itself as intended to be a serious CAD program and discusses using code and mathematical abstractions to design precise, parameterized objects. source

Known limits

The FAQ says ImplicitCAD has no GUI of its own, and its repository README lists multi-material/color, hull, and Minkowski sum support as unfinished. source

Language options

Users can design objects with the ExtOpenSCAD language or the Haskell API, and the FAQ describes using the API from C or other languages with some work. source

Language support

Users can design with the ExtOpenSCAD language or use the Haskell API; the FAQ says Haskell functions can also be exported to C for use from other languages. source

Local installation

The installation page describes binary installation or building a release or development version, and says Linux distribution packages are not currently provided. source

Local use

The tutorial says a local installation acts as a compiler that converts .escad files to a chosen output format, and users need a separate editor and viewer. source

Model rendering

The project describes an internal near-infinite-resolution model that can be rendered as an approximating triangle mesh, raytraced image, or G-code, with quality depending on the requested output. source

Online use

The installation page says ImplicitCAD can be used in the website's online editor without installing it. source

Parametric design

Its programming approach supports reusable objects, automation of repetitive tasks, and parametric designs. source

Parametric modeling

Yes source

Platform access

both source

Platform availability

The installation page says Windows and Mac packages have not been made, while listing an Arch Linux binary option and build instructions for Windows and Mac. source

Platform availability

The installation page says Windows and Mac packages have not been made and Linux distribution packages are not presently provided; it describes installing locally by building with GHC and cabal. source

3D print export

Yes source

Project maturity

The FAQ says ImplicitCAD is written in Haskell and invites contributions through its hacking guide. source

Project status

The repository README calls ImplicitCAD a work in progress and says its listed working features were assessed on January 26, 2020, with regressions possible. source

Checked against the maker's pages on 12 Oct 2026.