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3D CAD Converter

What 3D CAD Converter is
3D CAD Converter is a Windows application for previewing and converting 3D models across formats including STEP, IGES, STL, OBJ, and more than 15 others. It can process whole folders, apply file-naming templates, and mirror folder structures. Before meshing, it repairs broken STEP, IGES, and BREP surfaces; users can adjust tessellation settings and choose quality presets. A GPU-accelerated viewer provides wireframe, solid, and X-ray modes, measurement, and assembly inspection. For automation, its command-line interface offers watch-folder mode, profiles, JSON output, and CI/CD exit codes. An included MCP server lets AI agents interact with CAD files on the PC. The maker says files are processed locally, personal data is not collected, and the app works offline; initial setup requires internet unless using the full offline installer. It is aimed at 3D printing, CNC and manufacturing, CAD exchange, web and real-time 3D, and archival workflows. The free trial provides 10 full-quality conversions within 30 days; afterward, CAD-to-mesh exports use Draft quality and carry a trial note. Paid options are $39 a year or $179, paid once.
Who it suits
It suits Windows users working with 3D printing, CNC, manufacturing, CAD exchange, web or real-time 3D, and archival workflows. Its batch tools, command-line interface, and local processing may fit users with automated or privacy-conscious conversion needs.
What it does well
- Supports STEP, IGES, STL, OBJ, and 15+ formats.
- Repairs broken STEP, IGES, and BREP surfaces.
- Viewer includes measurement and assembly inspection.
- Processes files locally, according to the maker.
- Lifetime license includes updates.
What to know first
- Windows 10 or 11 required.
- Cannot convert 2D-only DWG/DXF drawings.
- Mesh files cannot convert back to STEP, IGES, or BREP.
- Trial limits full-quality conversions to 10 within 30 days.
Limits
The free trial costs $0 and allows 10 full-quality conversions within 30 days. After that, conversions continue without an end date, but CAD-to-mesh exports use Draft quality and carry a trial note; the Subscription plan costs $39 a year and the Lifetime license costs $179, paid once.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free trial | $0, no card · 10 full-quality conversions within 30 days; after that, conversions continue without an end date, but CAD-to-mesh exports are Draft quality and files carry a trial note | Free |
| Lifetime license | $179 once · Unlimited conversions; full export quality; every feature; updates included | $179, paid once |
| Subscription | $39 per quarter · Unlimited conversions; full export quality; every feature while subscribed | $39 a year |
As contenta-software.com lists them, read 9 Oct 2026. The maker's own page has the final word.
Getting started
- Open the 3D CAD Converter website
- Use a 64-bit Windows 10 or 11 computer with the required memory and disk space
- Install the Windows application, using the full offline installer if setup internet is unavailable
- Start with the free trial or choose the annual subscription or lifetime license
- Load CAD files or folders for preview, inspection or conversion
Verdict
3D CAD Converter combines format conversion, model inspection, repair, and automation tools in a Windows app. Check its format limits and trial restrictions before choosing it; paid licenses cost $39 a year or $179, paid once.
Questions
Is there a free plan?
Yes. The Free trial plan costs nothing, requires no card and continues after 30 days with the stated CAD-to-mesh quality limits.
What does the paid subscription cost?
The Subscription plan is $39 a year, billed at $39 per quarter, with unlimited conversions and full export quality while subscribed.
Is there a lifetime option?
Yes. Lifetime license costs $179, paid once and includes unlimited conversions, full export quality, every feature and updates.
Which operating systems are supported?
It supports 64-bit Windows 10 and Windows 11.
Does it process files online?
The maker describes processing as local and the application as fully offline. Setup needs internet unless you use the full offline installer.
Facts from 3D CAD Converter's own pages
- 3D inspection
- The GPU-accelerated viewer supports wireframe, solid and X-ray modes, measurement, and assembly inspection. · contenta-software.com, 9 Oct 2026
- Batch conversion
- It converts entire folders and supports file-naming templates and folder mirroring. · contenta-software.com, 9 Oct 2026
- CLI automation
- Its command-line interface includes watch-folder mode, profiles, JSON output and exit codes for CI/CD. · contenta-software.com, 9 Oct 2026
- Headquarters
- Umeå, Sweden · contenta-software.com, 28 Sept 2026
- Integrations
- The included MCP server lets AI agents such as Claude, Claude Code, Cursor, Codex and VS Code interact with CAD files on the PC. · contenta-software.com, 9 Oct 2026
- Notable limits
- It cannot convert 2D-only DWG/DXF drawings or convert mesh files back to STEP, IGES or BREP, and it does not read native SolidWorks, Inventor or CATIA files directly. · contenta-software.com, 9 Oct 2026
- Offline use
- The maker describes the app as fully offline, though setup requires internet unless using the full offline installer. · contenta-software.com, 9 Oct 2026
- Privacy
- The maker says files are processed locally, not uploaded, and the software does not collect personal data. · contenta-software.com, 9 Oct 2026
- Purpose
- 3D CAD Converter previews and converts 3D models, including STEP, IGES, STL, OBJ and 15+ other formats. · contenta-software.com, 9 Oct 2026
- Repair and tessellation
- It repairs broken STEP, IGES and BREP surfaces before meshing and offers adjustable tessellation settings and quality presets. · contenta-software.com, 9 Oct 2026
- System requirements
- The app requires 64-bit Windows 10 or 11, at least 4 GB RAM and 500 MB free disk space; 8 GB RAM is recommended for large assemblies. · contenta-software.com, 9 Oct 2026
- Trial limits
- After 10 full-quality conversions within 30 days, CAD-to-mesh exports use Draft quality and files carry a trial note; other conversions remain full geometry. · contenta-software.com, 9 Oct 2026
- Who it is for
- The maker presents workflows for 3D printing, CNC and manufacturing, multi-vendor CAD exchange, web and real-time 3D, and archival. · contenta-software.com, 9 Oct 2026
Where 3D CAD Converter stands on Freedom251
- 3D File Converter Software#3 of 30