GRBL CNC Controller v4.0

Mobile GRBL CNC Controller: No PC Required , Enhanced with Exclusive Mobile Features!

Unlock comprehensive control over your GRBL CNC machine directly from your mobile device. This app mirrors the full functionality of desktop software while introducing powerful, mobile-first innovations:

Complete CNC Control: Manage all standard operations, settings, and file execution you'd expect from PC-based controllers.

Advanced Jogging: Features precise jog control with adjustable speed increments, plus a unique mobile-exclusive Jog Emergency Stop button for immediate, safe halting – a critical safety feature often missing elsewhere.

Revolutionary Touch Jog Freestyle: Intuitively guide your CNC by simply moving your finger across the touch display. The machine follows your touch in real-time, allowing for freehand cutting, shaping, or material removal without any G-code. This powerful feature for quick modifications is an app exclusive!

Integrated G-Code Creator: Design basic shapes and toolpaths by adding points directly within the app. Generate G-code for simple jobs on-the-fly, eliminating the need for external CAD/CAM for many quick tasks. This convenience is another app exclusive!


Direct G-Code Terminal: Access a terminal for sending custom G-code commands and performing advanced machine diagnostics or configurations.
Effortless Probing & Setup: Includes robust probing routines and a clear settings page for easy machine calibration and GRBL parameter adjustments.

G-Code Simulator: Visually simulate your G-code files line by line, previewing the toolpath before you cut to catch errors and save material.