NirTsCAD Draw
2D drafting / 3D drafting
- 2D and 3D drafting — layers, Lisp, dimensions, DWG-style commands
- MCP draw tools for Cursor and Claude
- 30-day free trial from when you start Draw — no card
NirTsCAD
CAD Reimagined
Professional CAD in web browser
Plus MCP tools for AI workflows.
Draw trial is 30 days from when you start Draw. Buildings and Irrigation trials are 14 days from when you take that product. No card until the trial ends.
* If you were on the free plan while Draw was free for a limited time, your Draw trial continues until 1 January 2027.
Plans
Pick the seat that matches the work. Irrigation includes Draw. Buildings includes Draw. They are separate seats.
NirTsCAD Buildings
RCC design
- Slab, beam, analyze, RCC (CADMAX)
- MCP structural tools gated to this plan
- 14-day trial from when you start Buildings — includes Draw
NirTsCAD Irrigation
Draw + irrigation design
- 14-day trial from when you start Irrigation — includes Draw
- Yearly or monthly after the trial
- Does not include Buildings / CADMAX
Pricing
| Product | Trial (days) | Monthly | Action |
|---|---|---|---|
| Draw | 30 | ₹590 | |
| Buildings | 14 | ₹4,900 | |
| Irrigation | 14 | ₹24,900 |
Each trial starts when you take that product. An expired Draw trial does not block a later Buildings or Irrigation trial. Irrigation includes Draw only — not Buildings / CADMAX.
For enterprises buying more licenses
AI
NirTsCAD is AI-native. In the signed-in CAD tab, add your own Gemini API key under Settings and prompt from the AI panel — the assistant draws in your drawing. You can also connect Cursor, Claude, or Antigravity over MCP. You get basic drawing MCP tools with the Draw subscription, and RCC design and analysis, irrigation design, and detailed drawing MCP tools based on the subscription you have.
Explore NirTsCAD AI Draw in Action
MCP endpoint: https://nirtscad-mcp.nirts.in/mcp
Frequently Asked Questions
What is NirTsCAD?
NirTsCAD is a professional, fully functional 2D and 3D CAD application that runs entirely in your web browser. It features industry-first AI-native integration, full Lisp support, and standard DWG-style commands, delivering world-class performance without any installation.
Why NirTsCAD?
In the real world, initial designs undergo multiple changes during a project's lifecycle. NirTsCAD handles these on the fly by automating drawing, design, detailing, analysis, and IS-specific BBS drawings. Instead of drawing in one software, analyzing in another, and relying on manual draftsmen to constantly redraw changes, NirTsCAD does it all in the blink of an eye. This makes our solution 10x cheaper, 10x faster, and 100% reliable.
Which plan should I choose?
Draw is for architects and designers needing 2D/3D drafting. Buildings is for structural engineers doing RCC design (CADMAX), including slab and beam analysis. Irrigation is for civil engineers designing check dams and hydraulic networks.
Can I store data on my local machine?
Yes. Even though NirTsCAD is web-based, you have full control over your data. You can save drawings and load files (like PDFs, DXFs, and Lisp scripts) directly to and from your local machine securely.
Are the designs validated for real-world construction?
Absolutely. Our Check Dam designs are rigorously validated with field data. Additionally, NirTsCAD Buildings has already been deployed in the field to successfully design and construct more than 100 structures.
Is NirTsCAD interoperable with AutoCAD?
Yes! Our diagrams can be saved as DXF natively, and we can also open DXF files in NirTsCAD. DXF is the universal Drawing Exchange Format, meaning the exact same drawing can be opened seamlessly in both NirTsCAD and AutoCAD.
Is NirTsCAD interoperable with STAAD Pro?
Yes, it is highly interoperable. You can bridge your structural models seamlessly. Check out our STAAD Pro interoperability video guides here and here.
How do I use the Gemini API for free?
Under Settings, you can configure your own Gemini API key. By providing your own key, you can stay within Google's generous free tier limits and explore NirTsCAD's powerful AI drawing features at no extra cost.
How can power users maximize the AI?
Power users can connect tools like Cursor, Antigravity, or Codex via our MCP endpoint. For maximum capabilities, set up a billing account in Google AI Studio and use premium models like Gemini 1.5 Pro or Flash to unlock the full potential of AI-driven CAD automation.
Learn on YouTube
Tutorials and walkthroughs from @Nirts_India.
Shorts & Reels
Quick glimpses into AI drafting and features.