Open a file
Open FCSTD files — free, in your browser
FCStd is the file format of FreeCAD, the open-source CAD program for mechanical engineering, architecture and product design. It stores the model tree with the parameters and the shapes of every part.
With the free downloadlink viewer you open a .fcstd file directly in your browser. Nothing is installed, and without an account nothing is uploaded either — when you are logged in, the viewer keeps your file in My files.
Free · no account needed · 100% in your browser
What the viewer does with FCSTD files
The viewer reads the file with its own reader in your browser and shows the visible parts in 3D, in their colours and in their place, also in an assembly with links. You rotate, zoom, hide parts, measure with snapping and make a section.
Good to know
The viewer shows the shapes, not the design history, the parameters, sketches, meshes or text; whatever it does not show, it reports. If it does not work, export the model from FreeCAD as STEP.
How it works
- Click Open your FCSTD file above.
- Drag your .fcstd file into the window, or click to choose it.
- View it directly in your browser.
Related formats you can also open here
Want to share a file instead of opening it?
With downloadlink you send large files for free and securely — the recipient can view them directly in the browser with the same viewer, without installing anything.