CNC Simulator Pro

🛠️ CNC Simulator Pro — Watch Your G-code Cut Metal in the Browser

A free, browser-based 3-axis CNC milling simulator. Real-time 3D machining, G/M-code animation, DRO control bar, feeds-and-speeds calculator, tool library and 26 example programs — 100% client-side, no install, no account.

• 🌐 Try it: https://rudra496.github.io/cnc/
• 💻 Source: https://github.com/rudra496/cnc

What it does

• Real-time 3D machining — watch material removal as your program runs (Three.js render)
• G/M-code animation — line-by-line execution with the active block highlighted
• DRO control bar — live X/Y/Z position, feed, spindle state
• Feeds & speeds calculator — sensible starting parameters for your material and tool
• Tool library — end mills, facemills and drills with stored geometry
• 26 example programs — from first facing cuts to multi-operation parts
• Fanuc-style G-code — the dialect machinists actually use

Who it's for

Machinists validating programs before steel meets spindle, students learning CNC without machine time, and educators teaching G-code on any laptop.

Privacy & performance

Everything computes in your browser — your G-code never leaves the machine. No install, works offline after first load.

Tech stack

Next.js · TypeScript · Three.js · react-three-fiber · fully client-side

Built With

• nextjs
• three.js
• typescript