Freeware

Beside commercial software packages there is also a number of software tools free of charge (freeware) that support IFC. Tools include viewer to visualize an IFC model, often in conjunction with showing the project structure and the properties of objects, text browser to show the original IFC file for debugging, converter to convert project data from/to other file formats, and syntax checker to check the formal validity of IFC files.

 Freeware IFC tools for visualizing, checking and translating IFC files

ACCA software	usBIM.viewer+, a free software to view and edit BIM models in the IFC standard --> Download usBIM.browser, an online free ifc viewer --> Use it
Areddo	Areddo, a BIM viewer for IFC and pointclouds (.PTS) --> Download
BIM Beaver	BIM BEAVER, – a free Viewer from the company BIM VILLAGE --> Website
BIMData	BIMData, the BIM collaborative platform --> Website
Bimserver.org	Open Source BIM Server, an open source BIM Server based on IFC --> Website
BIM surfer WebGL viewer	BIM Surfer, an open source WebGL viewer for IFC in the webbrowser --> Website
BlenderBIM Add-on	BlenderBIM Add-on, an add-on for OpenBIM with Blender --> Download
Cadalog, Inc	IFC2SKP, IFC Import Plugin for Google SketchUp 8 --> Download
Constructivity	Constructivity Model Viewer, a viewer for IFC Data --> Download
CSTB	eveBIM, Multi-scale viewer for IFC, BCF, CityGML and GIS files. Multiples plugins for viewpoints, clipping, colorization, properties edition... --> Download
datacomp	BIM Vision, first Polish browser for IFC format--> Download
Data Design System	DDS-CAD Viewer, a viewer for IFC Data *.ifc, *.ifcZIP, *ifcxml, *gbxml--> Download DDS IFC Reader, drag & drop IFC files and examine --> Download
G.E.M. Team Solutions	IfcQuickBrowser, Text-browser for large IFC files. The IFC file is displayed in a tree structure. --> Download
IfcOpenShell.org	IfcOpenShell is a free open source IFC geometry engine. Besides the library itself, it features an importer for Autodesk 3ds Max, an importer for Blender and a stand-alone application to convert into the Wavefront .OBJ file format. --> Website
IfcWebServer.org	IfcWebServer.org is a free to use data model server and online viewer for Building Information Models (BIM) based on IFC standards. BIM managers and designers can query, filter and make reports about any information inside IFC models easily. The IFCWebServer can be used also in universities for BIM courses. Students can register and upload IFC models, explore the structure, apply filters, create sub-models and generate reports. --> Website
Karlsruhe Institute for Technology / Institute for Applied Computer Science / Campus North	FZKViewer, a viewer for IFC, CityGML, gbXML, LandXML, CIM (IEC) and point cloud Data. --> Download
NIST	IFC File Analyzer, Generate an Excel spreadsheet or CSV files from an IFC file -->Download SteelVis - CIS/2 to IFC Translator, CIS/2 is the product model for structural steel -->Download
Open Source BIM collective	Open source BIM collectiveThe open source BIM Collective is created to support and build the highest-quality open source Building Information Modeling software for open standards like IFC. Projects like IfcWebServer, BIM tools for sketchup, UBERviewer (CityGML and IFC), BIMserver.org, IfcOpenShell and BIMsurfer team up to create a stable suite of free and open source tools for everybody to use! --> Website
Open IFC Tools	Open IFC tools, a set of tools for open source IFC development. --> Overview including open Java toolbox, IFC loader for Java-3d, Boolean modeller, and Schedule assistent
Procedural Information System LLC.	PIComposer Community Edition PIComposer is a STEP ISO-10303 Standard document editor powered by a high performant EXPRESS document store. The community edition concentrates on IFC4x3. --> Download PIComposer Community Edition --> Documentation
RDF Ltd.	IFC Viewer, an IFC Viewer for Windows (DirectX 9), Unicode, IFC 2x3 (TC1) as well as IFC 4 and both 32/64 bit versions. -->Download IFC Viewers Source Code, the same viewer with C++ source code for 32/64 bit Unicode, including non-Unicode versions and a C# 32 bit version. -->Download IFC Examples Source Code, C++ and C# examples of IFC applications reading/writing including 'Hello Wall'/'Hello World' and IFC Viewers (all based on the http://rdf.bg/ifc-engine-dll.php IFC Engine DLL]). -->Download
Solibri	Solibri IFC Optimizer, a tool for optimizing/compressing IFC files Solibri IFC Optimizer Solibri Model Viewer, a viewer for IFC and Solibri Model Checker Data Solibri Model Viewer (Both Solibri softwares run on Windows and Mac OS X.)
Tekla	Tekla BIMsight, *.ifc, *.ifcZIP, *ifcxml,.dgn, .dwg, .xml files, you can combine models and run clash detection for free --> Download