Best Offline CNC Controller 2023

What is an Offline CNC Controller

CNC Offline Controller also called a stand-alone CNC controller, has the functions of a computer and CNC motion controller
It can work without connecting the motion control card to the computer. It only needs to remove the old control card and connect the drive directly to the offline controller.
The two types of CNC controllers are connected in the same way, but the offline controller eliminates the need to open the computer to read the tool path and work again. The offline controller has a G- that can directly read the U disk or TF card code file, some offline CNC controllers can take over the wheel.
The advantages of the offline controller are simplicity, convenience, and reduced interference. 

–> The following products are all solid choices. We’ve based these reviews on careful research, product comparisons, and user reviews, all to provide a comprehensive guide for buying a model that fits you best. 

Offline CNC Controller Software

Offline CNC controller software refers to computer programs or applications that allow you to control and operate a CNC machine without the need for an internet connection. These software solutions typically provide a user interface for designing or importing CAD/CAM files, generating toolpaths, and sending instructions to the CNC machine.

There are several offline CNC controller software options available in the market, and the choice of software depends on various factors such as the type of CNC machine you have, your specific workflow requirements, and your budget. Here are a few popular offline CNC controller software options:

Mach3: Mach3 is a widely used CNC controller software that supports a range of CNC machines. It provides features like toolpath creation, G-code editing, and manual control of the machine. It has an intuitive user interface and can be customized to suit different machine setups.

LinuxCNC: LinuxCNC is an open-source CNC controller software that runs on Linux-based systems. It offers powerful features, including real-time motion control, support for various hardware interfaces, and extensive customization options.

GRBL: GRBL is an open-source firmware and software package designed for small CNC machines, such as DIY CNC routers and 3D printers. It is lightweight and easy to use, making it suitable for hobbyists and entry-level users.

UCCNC: UCCNC is a commercial CNC controller software that provides a user-friendly interface and supports a wide range of CNC machines. It offers features like toolpath simulation, automatic tool change, and compatibility with various motion control hardware.

Autodesk Fusion 360: While primarily known as CAD/CAM software, Fusion 360 also offers offline CNC controller capabilities. It allows you to design and simulate your parts, generate toolpaths, and export G-code to control your CNC machine.

It’s important to note that some CNC machines may come with their proprietary controller software, so it’s recommended to check with the machine manufacturer for compatible software options.

Before choosing a specific offline CNC controller software, consider your machine’s compatibility, the features you require, the learning curve, and user reviews. It’s also advisable to download trial versions or demos, if available, to evaluate the software’s suitability for your needs.

Offline CNC Controller vs PC


1, Offline and convenient and intuitive, similar to the operation of the machining center
2, If you do a lot of duplicates, offline is more convenient, I used to use a notebook, and I have been charging all the time, more trouble
3, Support power-off continuous carving function
4, Offline stability it is easier to operate than mach3


CNC Offline Controller does not support the network. This is the worst. If there are many machines, use a computer and share a disk. Everyone is going to read the knife path. It is more convenient than using a USB disk. It is fast. , the version is easy to control, and the U disk is also easy to break.

The price of an offline CNC (Computer Numerical Control) controller can vary depending on various factors such as the brand, features, specifications, and capabilities. It’s important to note that prices can change over time, so it’s best to check with manufacturers, suppliers, or retailers for the most accurate and up-to-date pricing information.

To give you a general idea, offline CNC controllers can range from a few hundred dollars to several thousand dollars. Basic controllers with limited features and capabilities may be available at a lower price point, while more advanced controllers with advanced functionalities and compatibility with various CNC machines may be priced higher.

Offline CNC Controller Reviews


cnc controller board

The “Shaoge CNC” CNC Motion Controller is a modern and feature-rich controller for CNC (Computer Numerical Control) machines. Here are some key features and characteristics of this controller:

32-Bit CPU: The controller utilizes a high-performance 32-bit central processing unit (CPU). This advanced CPU can handle complex calculations and instructions, providing smoother and more precise control of the CNC machine’s movements.

LCD and Humanized Interface: It is equipped with an LCD and a humanized window man-machine interface. This interface likely provides an intuitive and user-friendly way for operators to interact with the controller, set parameters, and monitor the machine’s operation.

External TF Card for Memory: The controller uses an external TF (TransFlash) card for memory storage. This external memory source is essential for storing CNC programs, toolpath data, and other relevant information. With more than 2GB of storage space, it can accommodate a wide range of CNC programs.

Voltage Isolation: The working voltage and control voltage are isolated. Voltage isolation is a critical safety feature in CNC systems as it helps protect the controller and the connected CNC machine from electrical issues or interference. It can prevent electrical damage and ensure the reliability of the controller.

Touch Keyboard: The presence of a touch keyboard suggests an input method for operators to enter data, control the machine, or navigate the controller’s interface. Touchscreens are common in modern CNC controllers for their convenience and ease of use.

The “Shaoge CNC” CNC Motion Controller appears to be designed with both performance and user-friendliness in mind. It incorporates advanced technology, ample storage capacity, voltage isolation for safety, and a touchscreen interface for efficient operation. These features make it a valuable component for CNC machines where precision and ease of control are paramount.


  • SMC4-4-16A16B supports 4axis
  • Does not support the function of saving current coordinates and engraving after power failure
  • Maximum pulse output frequency 50KHz (three axes can be simultaneously 50KHZ)


  • SMC5-5-N-N support 5axis
  • SMC5-5-N-N support connects handwheel
  • Maximum pulse output frequency 500KHz (all five axes can be 500KHZ at the same time)


cnc controller board

The DDCS V3.1 CNC offline controller is an upgraded version of the DDCSV2.1 and DDCSV1.1 controllers, designed for controlling CNC (Computer Numerical Control) machines. Here are some key features and improvements of the DDCS V3.1 controller:

Sheet Metal Shell: The controller board is enclosed in a sheet metal shell. This shell provides a sturdy and protective outer casing. It not only enhances the overall appearance of the controller but also offers better anti-interference capabilities. This is important in CNC applications where signal stability is crucial for precision machining.

Power Failure Recovery: One notable feature is the ability to save current coordinates and continue engraving after a power failure. This is a valuable function that helps prevent loss of work and material in the event of a power outage or interruption. The controller can resume operations from where it left off, saving time and resources.

Axis Control: The controller supports 3 or 4-axis CNC systems. It can control up to 4 stepper motors, allowing for precise control over multiple axes, which is essential for various CNC machining tasks.

Control Pulse Output: The controller is capable of generating control pulses with a frequency of up to 500KHz on a single channel. Control pulses are essential for directing the movement of stepper motors or servo motors. The high pulse output frequency indicates that the controller is suitable for applications where rapid and precise movements are required.

The DDCS V3.1 CNC offline controller offers several important features for CNC machine control, including robust hardware with improved anti-interference, power failure recovery, support for up to 4-axis control, and high-frequency control pulse output. These features make it a valuable tool for CNC machining, especially in situations where precision, reliability, and power loss recovery are critical.


  • 4.3 inches TFT screen, resolution ratio: 480*272;
  • Support U disk to read G command, G command file size is not required;
  • Support standard MPG;
  • Support the function of saving data automatically after power down (press the start to automatically save the data in the operation, automatically save the data after power down)
  • Language selection: Chinese, English;


  • 5 inches TFT screen, resolution: 480×272, 17 operation keys;
  • Language selection: Chinese, English, Russian;
  • The unit of the controller system can be converted from English (Inch) and American (mm);
  • Newly added trial cutting and single line operation functions;
  • Three tool setting modes: floating tool setting, fixed position tool setting, and angle tool setting block tool set;
  • Special pluggable terminal block


cnc controller board

The TOPCNC TC55V/TC55H CNC motion controller is an upgraded and feature-rich controller designed for CNC (Computer Numerical Control) machines. Here are some key features and attributes of this controller:

Upgraded Version: The TC55V/TC55H is an upgraded version of the TC55 CNC controller, which suggests it includes enhancements and additional features.

3.5-inch Color Screen: The inclusion of a 3.5-inch color screen is a notable feature. This screen likely serves as the user interface, allowing operators to interact with the controller, input commands, and monitor the machine’s operation. A color screen can provide a clear and intuitive visualization of information.

RS 485 Communication: RS-485 is a common communication protocol used in industrial applications. It allows the controller to communicate with other devices or systems, such as sensors, motors, or a central control system. RS-485 is known for its reliability in noisy industrial environments.

Chinese/English Switch: The ability to switch between Chinese and English language options is a user-friendly feature that caters to a wider range of operators, including those who prefer different languages for control and programming.

Encoder Input: Encoder input is valuable for CNC systems that require precise feedback on the position and movement of the machine. Encoders can provide real-time information about the machine’s position, allowing for accurate control and positioning.

Reliability and Accuracy: The controller is described as highly reliable and highly accurate. This is essential for CNC machines, where precision and reliability are paramount for achieving high-quality results.

Low Noise: Low noise is an important consideration, especially in CNC applications. Reduced noise levels can contribute to a quieter and more comfortable working environment.

USB Stick File Import: Supporting file import from a USB stick is a convenient feature. It allows users to easily load CNC programs, toolpaths, and other data from a USB drive, simplifying the process of setting up and initiating machining operations.

TOPCNC TC55V/TC55H CNC motion controller offers a range of features and improvements suitable for CNC applications. These features include a color screen, RS 485 communication, language options, encoder input, reliability, low noise, and support for USB file import. These features collectively make it a user-friendly, reliable, and precise controller for CNC machines.


  • Large screen, color display, easy to operate
  • USB port import program, custom boot pictures,
  • 2ms interpolation cycle
  • Single-axis linear interpolation output pulse frequency 400khz
  • Circular interpolation output pulse frequency 300khz
  • Four-axis linear interpolation output pulse frequency 350khz


  • 3.5-inch color screen display
  • USB port to connect to a computer
  • Support PC software can modify boot screen and program upload and download
  • Support Chinese and English switching function
  • Adopt form-filled programming to reduce usage requirements


cnc controller board

The Digital Dream DM500 and NCH02 CNC Router controllers are professional handheld controllers designed for 3 or 4-axis CNC routers. These controllers provide a convenient and user-friendly way to operate CNC machines without the need for a computer. Here are some key features and details:

Complete Package: These controllers come as a complete package, which typically includes a connection board, a handheld controller, and a connection cable. This package provides everything you need to set up and operate your CNC router.

Standalone System: One notable feature is that they can operate as standalone systems, meaning they don’t require a computer for operation. This can be advantageous for various applications, especially in scenarios where portability and simplicity are important.

Handheld Controller: The handheld controller is designed to be portable and easy to use. Operators can hold and interact with the controller, making it a convenient choice for manual control of CNC machines. This handheld design allows for easy control over the machine’s movements and operations.

3 or 4-Axis Support: The controllers are compatible with 3 or 4-axis CNC routers. This flexibility allows them to work with various CNC machine setups, accommodating different machining needs.

Pendant Operation: The inclusion of a pendant is an ergonomic feature that simplifies machine operation. The pendant typically includes controls and a display screen, making it more intuitive for users to control and monitor the CNC router’s performance.

User Convenience: The emphasis on user convenience suggests that these controllers are designed with ease of operation in mind, making them suitable for users who may not have extensive experience with CNC machines.

Digital Dream DM500 and NCH02 handheld CNC Router controllers offer a comprehensive solution for operating 3 or 4-axis CNC routers. Their standalone operation, handheld controller design, and pendant interface make them user-friendly and convenient for a variety of CNC machining applications.


  • stand alone CNC controller without computer
  • support 2- 4 axis
  • any 2 axis circular interpolation
  • based on linux system
  • read more 30 lines G-code.
  • The System Support standard G-code.Also Support the popular CAD/CAM software,such as ArtCam,MasterCam,ProE and so on;
  • The control system can preview the process path before machining
  • with pendant


  • stand alone cnc controller without computer
  • Support standard MPG
  • with 3.5″ TFT screen
  • 19 user key
  • with pendant

An offline CNC controller is a device or system used for controlling CNC (Computer Numerical Control) machines without the need for a continuous connection to a computer or external control source. It is a standalone unit capable of processing and executing CNC programs independently. Offline CNC controllers have various applications, especially in scenarios where real-time computer control is not feasible or desired.

An offline CNC controller is a self-contained control system that offers independence from external computers, making it a versatile and reliable solution for various CNC machining applications. It simplifies CNC machine operation, and program management, and can be particularly valuable in situations where constant computer control is not practical or desired.