View FCSTD File files directly in your browser. No installation, no account. 100% private — files never leave your device.
Drop your file to view it instantly
or click to browse from your device
Desktop: up to 50MB · Mobile: up to 20MB
Works entirely in your browser — no software installation required
100% private — files never leave your device or touch any server
Completely free with no account or registration required
Mobile-friendly — works on phones, tablets, and desktops
Accurately renders FCSTD files entirely in your browser
Instant file loading — no server upload or processing delay
FreeCAD parametric 3D modeler format
Precise engineering drawings with millimeter accuracy
Compatible with CAD/CAM workflows and 3D printers
Supports parametric modeling and revision history
May require specific software to open or edit
Not universally compatible with all applications
Alternative formats may offer better compression or quality
Engineering and manufacturing design workflows
3D printing and rapid prototyping
Cross-platform CAD collaboration and review
Archiving technical drawing files
Use STEP or IGES for universal 3D model interchange across CAD platforms
Export to DXF for 2D drawings when sharing with non-AutoCAD users
Check unit and scale settings before converting to avoid dimensional errors
Use STL for 3D printing workflows — most slicers accept it natively
Drag & drop your .fcstd file, or click to browse
Your file opens instantly — no upload or server
Save the original file anytime with one click
Yes, completely free. View any FCSTD file with no limits, no sign-up, and no software installation required.
Your FCSTD file is processed entirely in your browser using client-side JavaScript. It never leaves your device, is never uploaded to any server, and is cleared when you close the tab.
Yes. After viewing, you can convert your FCSTD file to another format using our free FCSTD converter linked below.
Free, instant, and 100% private. Your files are processed locally in your browser.