Open Source Kitchen Design Software: Options, Licenses and Limits

Open source kitchen design software is a small but useful corner of the market. A handful of projects cover home layout, kitchen visualization, cabinet construction and cut lists, and each one makes different trade-offs. This guide walks through the main options, explains what their licenses mean in practice, and covers why open project and catalog formats matter as much as open code.

Why consider open source for kitchen design

Most kitchen design tools are commercial products or retailer planners. They are often polished and well supported, but your designs live in a proprietary format and the catalogs are controlled by the vendor. Open source changes a few things:

• No license fees. You can install and use the software without paying.
• Your files stay yours. Projects are usually saved locally in documented or inspectable formats.
• You can inspect and change it. If a cabinet rule or export does not match your shop, you or a developer can modify it.
• Longevity. If a project stops, the code is still available, and others can continue it.

The trade-offs are real too. Open-source tools usually have smaller catalogs, fewer manufacturer integrations, less polished rendering and community-based rather than contractual support. For a professional selling manufacturer cabinets with live pricing, commercial tools are stronger today.

The main open-source projects

Sweet Home 3D

Sweet Home 3D is a mature, GPL-licensed home design application. You draw walls in 2D, place doors, windows and furniture, and see the result in 3D. It is stable, cross-platform and has a large library of community models.

• Strengths: mature, easy to learn, good for whole-room and whole-house layouts.
• Limits: cabinets are furniture models rather than parametric cabinet runs, so you will not get fillers, toe-kicks or a cabinet schedule automatically.

IngeTrazo with the Kitchen extension

IngeTrazo is an open-source design tool with a Kitchen extension, licensed GPL-3.0, that focuses on kitchen layouts and can use Blender for rendering.

• Strengths: kitchen-specific workflow, high-quality rendering through Blender.
• Limits: smaller community, and the Blender pipeline adds a learning curve.

CabinetDrafter

CabinetDrafter is an offline, browser-based cabinet planner. It supports framed and frameless construction, produces material takeoffs and includes nesting.

• Strengths: cabinet construction focus, works offline, useful for small builders.
• Limits: oriented toward building rather than client presentation or full-room visualization.

WoodworkingShop

WoodworkingShop is a React/TypeScript progressive web app with parametric cabinets, a BOM, cutting optimization and PDF, DXF and G-code export.

• Strengths: modern web stack, parametric design through to shop outputs.
• Limits: aimed at hobbyists and small shops; any G-code should be checked carefully against your own machine and post-processor before cutting.

FreeCAD Woodworking workbench

The Woodworking workbench for FreeCAD is MIT-licensed and works at the part level: you model panels and assemblies inside a full parametric CAD system and generate cut lists.

• Strengths: precise, parametric, part-level control, backed by a capable CAD platform.
• Limits: FreeCAD is a general engineering tool, so laying out a whole kitchen is slower than in a dedicated planner.

OpenCutList for SketchUp

OpenCutList is an open-source SketchUp extension that generates cut lists and cutting diagrams from your model. SketchUp itself is a commercial product with a free web tier, so the combination is partly open.

• Strengths: widely used, turns a SketchUp model into practical cut lists.
• Limits: depends on modeling each part consistently; SketchUp does not enforce cabinet structure on its own.

OpenPlan3D and OpenKitchen3D

OpenPlan3D is an open floor-plan engine. It is free, runs in the browser, and is available today, with an iPhone app that captures rooms using Apple's RoomPlan.

OpenKitchen3D is MIT-licensed kitchen and cabinet planning software powered by OpenPlan3D. It is in development and not released yet. The goal is to fill a gap between home-design tools and shop tools: scan a room, place parametric cabinet runs, get automatic countertops, fillers and toe-kicks, view plan, elevation and 3D from one model, check clearances, and export a BOM, cabinet schedule, estimate and PDF. Manufacturing outputs such as cut lists, nesting and CNC are planned as a later beta that will be validated separately. See the open source page and roadmap for status.

Comparison at a glance

Licenses and features change, so confirm details on each project's repository before you rely on them.

MIT vs GPL: what the license means for you

Both MIT and GPL are open-source licenses, and for most homeowners and designers simply using the software, the difference is small. It matters more if you integrate, modify or redistribute the code.

MIT (permissive)

• You can use, copy, modify and redistribute the software, including in closed-source or commercial products.
• You must keep the copyright and license notice.
• For integrators: a cabinet company can embed MIT-licensed code in its own app or website without publishing its own source.

GPL (copyleft)

• You can use, modify and redistribute the software freely.
• If you distribute a modified version, or a program that incorporates GPL code, you generally must release that combined work's source under the GPL too.
• For integrators: building GPL code into a proprietary product is usually not allowed without releasing your code. Using a GPL program internally, without distributing it, generally does not trigger that requirement.

Practical takeaways

• Homeowners and designers: either license lets you use the software for free, including for paid design work.
• Cabinet shops and manufacturers: MIT makes it simpler to build a branded planner or connect the software to internal systems.
• Contributors: GPL guarantees improvements stay open; MIT maximizes adoption.

This is a general overview, not legal advice. If licensing matters to your business, read the license text and talk to a lawyer.

Why open project and catalog formats matter

Open code is only half the story. A kitchen design is data: room geometry, cabinet sizes, door styles, materials, appliance specs and clearances. If that data is trapped in a proprietary format, you are still locked in even with open software.

Open project files

An open, documented project format, such as JSON, means:

• You can move a design between tools, or write a script to read it.
• A designer can hand a project to a cabinet shop that uses different software.
• Your design survives if the original tool disappears.

Open, versioned catalogs

Catalogs define what cabinets exist, their sizes, construction rules and options. Commercial tools often have excellent manufacturer catalogs, but they are usually tied to that platform. An open, versioned catalog format lets:

• Manufacturers publish their product lines once, in a format any compatible tool can read.
• Shops describe their own construction standards, such as box material, back thickness and toe-kick height.
• Projects record which catalog version they used, so a design created today still prices and builds the same way later.

OpenKitchen3D plans to use an open project JSON and an open, versioned catalog format. You can read the draft in the catalog format docs.

When open source is the right choice

Open-source kitchen design software is a good fit if you:

• Want to plan without accounts, subscriptions or vendor lock-in.
• Build your own cabinets and want cut lists you can inspect.
• Need to integrate planning into your own website, app or shop system.
• Value long-term access to your files.

Commercial tools are usually the better choice if you need large manufacturer catalogs with live pricing, photorealistic rendering out of the box, or vendor support and training today. Many professionals use both: an open tool for layout and data, a commercial one for sales presentations or CNC. For a broader look at paid and free tools, see free kitchen design software.

Frequently asked questions

Is there any open source kitchen design software that is ready to use today?

Yes. Sweet Home 3D, IngeTrazo with its Kitchen extension, CabinetDrafter, WoodworkingShop, the FreeCAD Woodworking workbench and OpenCutList are all available now. They differ widely in focus, from room visualization to cut lists. OpenPlan3D is also available for floor plans, while OpenKitchen3D is still in development.

Can I use GPL-licensed kitchen software for paid client work?

Generally yes. The GPL governs how you distribute the software and modified versions, not what you design with it. Your drawings and project files are your own work. If you plan to modify and redistribute the software itself, read the license terms carefully.

Which open-source tool is best for making cut lists?

For SketchUp users, OpenCutList is a popular choice. FreeCAD's Woodworking workbench suits people who want part-level parametric control, and CabinetDrafter and WoodworkingShop include takeoff, nesting or cutting optimization. Always verify cut lists against your own construction methods before cutting material.

Is OpenKitchen3D free and open source?

Yes, OpenKitchen3D is MIT-licensed. It is in development, and its cabinet planner and iPhone/iPad app have not been released. Manufacturing features like cut lists and CNC output are planned for a later, separately validated beta.

Why does an open catalog format matter if the software is already open source?

Because the catalog defines your cabinets, sizes, rules and prices, and it is often the hardest part to rebuild. An open, versioned catalog lets manufacturers and shops publish product data once, keeps old projects consistent, and lets designs move between compatible tools without being redrawn.