BIM BEAVER read IFC files, and display it as a 3D model, and inspect properties. And create or modify instances and create things for architecture. BIM BEAVER read IFC files written by other BIM software like Revit, Archicad and so forth. BIM BEAVER support IFC format 2×3, and 4BIM BEAVER is a freeware.

About IFC file

The Industry Foundation Classes (IFC) data model is intended to describe building and construction industry data.

It is a platform neutral, open file format specification that is not controlled by a single vendor or group of vendors. It is an object-based file format with a data model developed by buildingSMART (formerly the International Alliance for Interoperability, IAI) to facilitate interoperability in the architecture, engineering and construction (AEC) industry, and is a commonly used collaboration format in Building information modeling (BIM) based projects. The IFC model specification is open and available.[1] It is registered by ISO and is an official International Standard ISO 16739-1:2018.


Feature list

  • Read IFC files.
  • Create New IFC files.
  • Write IFC files.
  • Modify IFC files.
    • Modify entities.
    • Create entities.
    • Delete entities.
    • Undo/Redo(2.0.0 NEW!)
  • Add building components
    • Add Sites
    • Add Buildings
    • Add Building Stories
    • Add Grids
  • Add management information
    • Hyper-Link
  • Viewer.
    • Zoom, Pan, Rotate.
    • Orthogonal, Perspective.
    • Fit building all.
    • Zoom building structure.
    • Animate viewing operation.
    • Show or Hide building structure.
    • Change 3D graphics after modifying geometric attributes.
    • Show Properties in Tree view.
    • Shade mode.(Solid, Translucent, Wireframe)
    • Filter
  • Create View
    • Plan View
    • Elevation View
    • Section View
  • Export.
    • STL file.
    • OBJ file.
    • FBX file.
    • Image files(PNG, gif, jpeg, bmp) .
    • CSV file( quantity, search).
  • Quantity take-off(Name, Stories, Length, Area, Volume, and so on.).
    • Window.
    • Door.
    • Column.
    • Slab.
    • Wall.
    • Beam.
    • Footing.
    • Reinforcing Bar.
  • Search.
    • Property Set.
    • Hyper Links
  • Display information
    • Display IFC Headers
  • IFC explore.


  • May 13th, 2019 Release BIM BEAVER(1.0)
  • May 25th 2019 Update BIM BEAVER(1.1)
  • Jun 2nd 2019 Update BIM BEAVER(1.2)
  • Jun 9th 2019 Update BIM BEAVER(1.3)
  • Jun 22th 2019 Update BIM BEAVER(1.4)
  • Jun 28th 2019 Update BIM BEAVER(1.5)
  • July 6th 2019 Update BIM BEAVER(1.5.1)
  • July 23th 2019 Update BIM BEAVER(1.6)
  • Aug 10th 2019 Update BIM BEAVER(1.6.1)
  • Jan 27th 2020 Update BIM BEAVER(1.7)
  • Feb. 7th 2020 Update BIM BEAVER(1.8)
  • Feb. 9th 2020 Update BIM BEAVER(1.8.1)
  • Feb. 25th 2020 Update BIM BEAVER(1.9.0)
  • Feb. 27th 2020 Update BIM BEAVER(1.9.1)
  • Mar. 4th 2020 Update BIM BEAVER(1.9.2)
  • Apr. 21th 2020 Update BIM BEAVER(1.9.3)
  • May. 13th 2020 Update BIM BEAVER(1.9.4)
  • May. 24th 2020 Update BIM BEAVER(1.9.5)
  • Jan. 2nd 2021 Update BIM BEAVER(1.9.6)
  • Apr. 4th 2021 Update BIM BEAVER(1.9.7)
  • Apr. 15th 2021 Update BIM BEAVER(1.9.8)
  • Jun. 14th 2021 Update BIM BEAVER(1.9.9)
  • Aug 9th 2021 Update BIM BEAVER(2.0.0)


Sample IFC files(‘Open IFC Model Repository’).

BIM BEAVER uses icons8. icons

2.0.0 Released

  1. Undo/Redo command
  1. Removed derived attributes from property window

I noteced that the derived attributes displayed in the property window. I removed them from the window because I can’t deal with them properly. There are a myriad rurles.

1.9.9 Released

Filter Command

Filter command tell elements from selected elements in the view by designating types and stories.

Window select

You can select multiple elements at once by enclosing visual objects in the view.

1.9.8 Released

The beaver implemented shade mode. You can choose three types of shade mode, solid, translucent, wireframe.


1.9.7 Released

The beaver implemented section views. You can create a plan, elevation or section view.




The section view can slice the model by an arbitrary section plane.

1.9.6 Released

Add Arch panel

Add Arch panel in the ‘Home’ tab.

Add Site

Add a new IfcSite instance. Select an IfcProject instance and input Name and press button ‘OK’.

Add Building

Add a new IfcBuilding instance. Select an IfcSite instance and input Name and GL(Ground level) and Press button ‘OK’.

Add Grid

Add a new IfcGrid instance. Select IfcBuiding instance and IfcBuildingStorey Instances and input parameters about grids and press button ‘OK’.

              Name                 Grid name

              X directions       Positions for X direction

              Y directions        Positions for Y direction

              X Label                Labels for X direction.

              Y Label                Labels for Y direction.

              Origin                  Origin for grid

              Angle                   Angle for grid

Display IFC Headers

Display header sections in the IFC file.

Add Window Panel

Add window panel in the ‘Home’ tab.

Cascade Window

Stack child windows in the main frame.

TitleVert Window

Tile vertically windows in the main frame.


Tile horizontally windows in the main frame.

Version 1.9.5 Released.

1). The bug fixed relating to IfcStyledItem.
The application couldn’t display walls by the specified color.

2). Added HyperLink command.

Relate hyperlinks with instances. Select instances. and press button ‘HyperLink’ . Input hyperlinks in the dialog. You can specify multiple hyperlinks to the selected instances.

Press the ‘Open’ button after selecting one of the links in the list. the application will open the hyperlink.

Please use the ‘Search’ command if you want to confirm all hyperlinks in the IFC file.

You can search all hyperlinks in the IFC file by the Hyperlink tab.
Please just press the ‘OK’ button, then you can see a list of them.
The Beaver creates a property set to relate hyperlink with structural elements in the IFC file when you use the ‘HyperLink’ command.
The search command searches the property set.

3.) Fixed to deal with ‘Select type’ in the property window.

Change types of the ‘Select type’. Please press the option. And then you can see a ‘Change a select type’ dialog.
You can select a type by the combo box. If you select an entity type by the combo box, The ‘Create’ button and the ‘Select’ button become active. If you want to create a new instance, please press the ‘Create’ button. You will see ‘Add new instance’ dialog to select an entity type. If you want to select an existing instance in the file, press the ‘Select’ button. After displaying the ‘IFC explore’ dialog, please select an instance that you want.

4.) The bug fixed relating to redraw.

The application had crashed when you change geometrical property in the property window relating to the boolean operation.

5.) The bug fixed for the ‘LOGICAL’ type in the property window.

There is a ‘LOGICAL’ type in the IFC specification. The type can express ‘TRUE’, ‘FALSE’, and ‘UNKNOWN’. The application couldn’t deal with the type in the property window.

1.9.4 Released.

1. New IFC file command.

Create a new IFC file.

2. Delete command.

Delete selected instances.

3. Add an Insntace command.

Create a new IFC instance. You can see the Add instance dialog. Select an entity type name and input the number of instances and press button ‘OK’.

4. Bug fixed to display IfcBooleanResult.

The application didn’t display the IfcBooleanResult (The IfcBooleanResult is base-type of IfcBooleanClippingResult. the application just had dealt with the latter.

5. Add a new building story command.

Add a new storey. Right-click IfcBuilding node to show the menu and click menu ‘Add storey’. In the Add Story dialog, input level and press button ‘OK’.

6. Fixed the problem for writing aggregate attributes.

The application had a problem to write aggregate attributes. In detail, The application incremented values of an array and saved.

7.Fixed to display the IFC entity type as camel cases.

The previous version of the application displayed the entity as lower cases. I noticed that the lowercase was difficult to read.

ifcwallstandardcase —> IfcWallStandardCase

In 1.9.3 Fixed to change 3D graphics as you change geometric properties.

The application change 3D graphics immediately as you change geometric properties. For example, If you change a location property of an IfcLocalplacement, the application change a position of a structure like a column, a wall, and so on. And if you change a depth property of a IfcExtrudedAreaSolid of a column, the application lengthen or shorten the column.

In 1.9.3 Add options for the CSV export command.

You can designate a separate character (comma or tab) and quotation(“, ‘ or nil) by the option dialog.