ifcsplitandmerge.com

What It Is

IfcSplitAndMerge is a high-performance viewer for IFC files, with built-in IFC splitting and merging as its key capability. According to the article, it can quickly load a sample bridge model on a standard laptop, and lets users select elements from the 3D view, tree view, or by searching property text, then export the selected content as a new IFC file. It is closer to a lightweight tool for professional BIM/IFC workflows than a general-purpose CAD platform.

Core Features and Tech Stack

Its core value lies in the “select—extract—export” workflow: users can locate elements through single selection or box selection in 3D, the tree view, or property-based search conditions, then export a new IFC file containing those elements. This makes it suitable for splitting large IFC files, for example by building floor, element type, specific properties, or property set values. Technically, the application is developed in C++, uses Qt and OpenSceneGraph for high-performance rendering, and relies on the open-source IFC geometry library web-ifc.

Open Source, Pricing, and Ecosystem

The article makes it clear that IfcSplitAndMerge can be downloaded and used for free, but the application itself is not open-source. Executables are available via GitHub Releases; users who want access to the source code, or want to use parts of it as a template for another application, need to contact the maintainers. Professional support and implementation services also require email contact, so commercial licensing, service pricing, and SLA details are not publicly disclosed.

Pros and Cons

Its strengths are a clear focus and a very direct fit for large IFC splitting needs. Multiple element selection methods reduce the operational effort required to extract models. The combination of Qt, OpenSceneGraph, and web-ifc also suggests an engineering- and performance-oriented design. The drawbacks are that its closed-source nature limits transparency for secondary development; the article does not specify supported operating systems, installation dependencies, command-line/API/SDK availability, or the exact workflow and limitations of the merge feature. The documentation currently reads more like a product introduction than a full manual, with limited troubleshooting material.

Who It’s For and Access from China

It is suitable for BIM engineers, IFC application developers, bridge/building model processing teams, and users who need to extract sub-models from large models. For access from China, the article only provides the official website, GitHub downloads, and an email contact; it does not mention regional availability, mirrors, or payment information. Since GitHub access in China can be unstable, the overall assessment is unknown. If you need an open-source option or a more complete ecosystem, alternatives such as IfcOpenShell, BlenderBIM, and xBIM Toolkit are worth considering.