BIMViewer

Free plan Web

What BIMViewer is

BIMViewer is a browser-based viewer and coordination workbench for building information models. It reads IFC2x3, IFC4, IFC4x3, and zipped .ifczip files, and can combine multiple discipline models in one scene while retaining each model's spatial tree. Users can inspect attributes, property sets, and quantities; isolate or hide elements; cut section planes; measure distances; and export PNG snapshots. Its workbench also includes IFC Validator, IFC Compressor, IFC Merge, IFC to Excel, IFC Properties, and IFC to glTF. Models are processed locally in the browser using WebAssembly rather than uploaded, and closing the tab ends the session copy. The site requires a current browser with WebAssembly and WebGL, and says it works on desktop or mobile without an account, plugin, or desktop app. It does not directly open native Revit .rvt files and does not perform automated rule-based clash tests. The free plan includes the viewer and tools without file or frequency limits.

Who it suits

BIMViewer suits project team members who need to inspect IFC deliverables in a browser without authoring software licenses. It is intended for contractors, clients, engineers, site managers, and subcontractors working with compatible IFC files.

What it does well

Reads IFC2x3, IFC4, IFC4x3, and .ifczip
Combines multiple IFC models into one scene
Measures distances and exports PNG snapshots
Processes models locally in the browser

What to know first

Does not open native Revit .rvt files directly
No automated rule-based clash testing
Requires WebAssembly and WebGL in a current browser

Limits

The free plan includes the viewer and tools without limits on files or frequency. The viewer does not open native .rvt files directly or run automated rule-based clash tests; around 300 MB is described as workable on desktop, with a heads-up above 150 MB on desktop or 80 MB on mobile.

Plans

Plan	Billed and limits	Price
Free	Viewer and all tools free without limits on files or frequency · local browser processing	Free

As bimviewer.org lists them, read 8 Oct 2026. The maker's own page has the final word.

Getting started

Open https://bimviewer.org/ in a current browser with WebAssembly and WebGL.
Use a desktop or mobile browser; no account, plugin or desktop app is required.
Open an IFC2x3, IFC4, IFC4x3 or zipped .ifczip model.
Add other discipline models to view them together in a federated scene.
Use the viewer tools or companion workbench tools as needed.

Verdict

BIMViewer provides IFC inspection and coordination tools in a free browser workbench, with local model processing. It fits IFC-based review, but teams needing automated clash tests or direct .rvt support will need another approach.

Questions

How much does BIMViewer cost?

The Free plan costs nothing. BIMViewer Premium is marked coming soon, with no price stated.

Is there a free plan or free trial?

Yes. The free plan includes the viewer and tools without limits on files or frequency. There is no free trial.

What file formats does it support?

It reads IFC2x3, IFC4, IFC4x3 and zipped .ifczip files. It does not open native Revit .rvt files directly.

Which platforms can I use?

BIMViewer runs in a current web browser on desktop and mobile, with WebAssembly and WebGL. It requires no plugin, desktop app or account.

Does it upload models?

Models are parsed and rendered locally in the browser rather than uploaded. Closing the tab ends the session copy.

What integrations or compatible exports are described?

The site describes compatible IFC exports from Revit, ArchiCAD, Tekla Structures, Allplan, Vectorworks, Bonsai (BlenderBIM) and Civil 3D.

Facts from BIMViewer's own pages

Automated clash detection: The viewer supports visual coordination but does not run automated rule-based clash tests. · bimviewer.org, 8 Oct 2026
Companion tools: The workbench includes IFC Validator, IFC Compressor, IFC Merge, IFC to Excel, IFC Properties and IFC to glTF. · bimviewer.org, 8 Oct 2026
Data collection: The privacy policy says Google Analytics 4 collects aggregate usage events and Google AdSense supports the free service; hosting and Cloudflare keep short-window access logs. · bimviewer.org, 8 Oct 2026
Device requirements: The site requires a current browser with WebAssembly and WebGL and says it works on desktop or mobile browsers without a plugin, desktop app or account. · bimviewer.org, 8 Oct 2026
Federation: The viewer combines multiple IFC discipline models into one scene while keeping each model's spatial tree separate. · bimviewer.org, 8 Oct 2026
Input formats: The viewer reads IFC2x3, IFC4, IFC4x3 and zipped .ifczip files; it does not open native Revit .rvt files directly. · bimviewer.org, 8 Oct 2026
Integrations: The site describes compatible IFC exports from Revit, ArchiCAD, Tekla Structures, Allplan, Vectorworks, Bonsai (BlenderBIM) and Civil 3D. · bimviewer.org, 8 Oct 2026
Intended users: The viewer is presented for project team members including contractors, clients, engineers, site managers and subcontractors who need to inspect IFC deliverables without authoring software licenses. · bimviewer.org, 8 Oct 2026
Maker and founding: The about page says BIM Viewer was established in 2024 and describes its team as having architecture, engineering and information technology backgrounds. · bimviewer.org, 8 Oct 2026
Model size: There is no artificial cap on federated set size; the site describes around 300 MB as workable on desktop and gives a heads-up above 150 MB, or 80 MB on mobile. · bimviewer.org, 8 Oct 2026
Premium: BIMViewer Premium is marked coming soon and is described as adding persistent share links, batch runs, oversized models and an ad-free workbench; no price is stated. · bimviewer.org, 8 Oct 2026
Processing and privacy: Models are parsed and rendered locally in the browser using WebAssembly and are not uploaded; closing the tab ends the session copy. · bimviewer.org, 8 Oct 2026
Purpose: BIMViewer is a browser based viewer and coordination workbench for viewing, auditing, slimming, merging and extracting data from BIM models. · bimviewer.org, 8 Oct 2026
Viewer tools: Users can inspect element attributes, property sets and quantities, isolate or hide elements, cut section planes, measure distances and export PNG snapshots. · bimviewer.org, 8 Oct 2026

Where BIMViewer stands on Freedom251

3D Model Viewer Software#14 of 29