Transform your G-code files into editable 3MF models effortlessly.
Key Points to Remember
- When converting from G-code to 3MF (or STL), expect potential loss of details.
- Eliminate excess information like supports or rafts commonly found in G-code files.
- Voxelizer for Fab guarantees optimal outcomes, while Gcode2l and 3DPea offer reliable online alternatives.
Quick Guide
Voxelizer for Fab

Get Voxelizer for Fab Up and Running Voxelizer for Fab, akin to Cura or PrusaSlicer, stands out as the premier choice for converting G-code to STL, a crucial step before moving to 3MF format.

Import G-Code into Voxelizer for Fab If you're ready with a G-code file, proceed. Otherwise, secure one and follow these steps:
- Navigate to File > Import > G-code (.gcode).
- Locate your .gcode file.
- Open it in Voxelizer for Fab.

Access the Voxelize Menu On the sidebar, find and click Voxelize, the last option.

Choose Voxelize or Voxelize Precise Your model complexity determines your choice:
- Opt for Voxelize for straightforward models, smoothing out intricate details.
- Choose Voxelize Precise for intricate models with holes, sharp points, or fine details, preserving their integrity.

Set Voxel Size. By default, it's 0.1mm, but adjust as needed for model intricacy. Smaller voxels mean finer detail.
- Once set, voxelization begins.

Perfect Your Model Post-Voxelization. If satisfied, no further editing may be necessary. Otherwise, refine with filters:
- Access Filters on the sidebar.
- Utilize Basic Filters to modify wall thickness, contour smoothness, or mirror the model.
- Use Object Refinement filters to seal holes or eliminate small elements like brims or rafts.

Export as STL. Although Voxelizer doesn't directly export 3MF, STL can be converted:
- For Windows users, utilize 3D Builder.
- Online options include IMAGEtoSTL, 3D-convert, or 3DPea.
Gcode2l

Visit Gcode2l's Site. An online G-code to STL converter, Gcode2l, operates directly in your browser. Note that while convenient, results may lack the polish of dedicated slicers like Voxelizer for Fab.
- Gcode2l's site emphasizes potential quality loss when converting G-code to other formats, resulting in STLs with reduced detail.

Add a G-code file. Click the blue plus sign at the screen's bottom. You can also try the tool with Import Test Files Set in the middle.
- After uploading, it's normal to see 'No Preview' until processing.

Access the Reconstruction Menu. Gcode2l offers parameters for fine-tuning converted STLs:
- Resolution: Adjust from 'detailed' to 'rough,' considering model size for optimal results.
- Simplify: Reduce complexity and file size with this slider.
- Optimize: Toggle to remove interior extrusions, balancing reconstruction speed and artifacts.
- Skip: Exclude initial layers to eliminate brims or rafts.

Initiate Reconstruction. Click Reconstruct and adhere to memory and time limits:
- Timers and progress bars are displayed.
- Unhappy with results? Click New to readjust parameters.

Download the Resulting STL. Gcode2l converts G-code to STL, ready for further conversion:
- For Windows users, use 3D Builder.
- Online options include IMAGEtoSTL, 3D-convert, or 3DPea.
3DPea Online Converter

Visit 3DPea's Converter Site. Although not as powerful as standalone slicers or Gcode2l, 3DPea's online G-code to 3MF converter could be handy for small files or avoiding additional conversions.

Import Your G-code. Click Import and select your file. Large files may take time to load.
- For practice, use the Example button to import a sample file.

Convert Your File. Click Convert after importing your G-code.

Adjust Extrusion Radius and Accuracy. Experiment to find optimal parameters for your model:
- Higher extrusion radius means thicker walls, while lower accuracy yields truer results to the source G-code.
- If unsatisfied, close the preview pane.

Export as 3MF. Alternatively, choose STL if preferred from the 'Export' dropdown.

Export your file. If you saved as STL but need 3MF later, you can convert using 3DPea or resources like 3D Builder for Windows, or websites like IMAGEtoSTL or 3D-convert.
Tips
- Test with Benchy if you lack a G-code file. Benchy, a calibration and test model, is available as an STL from 3DBenchy.com.
- Search for Benchy G-code for your 3D printer model online. You can find uploaded G-code files for experimentation.