Alternatives to 3D Slash
A beginner-friendly 3D modeling tool where you shape models by carving and adding blocks. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
3D Slash
A beginner-friendly 3D modeling tool where you shape models by carving and adding blocks.
Replacements
Listings that take over the same core job as 3D Slash.
Tinkercad
Create simple 3D designs and explore electronic circuits in a browser.
Tinkercad replaces block carving with shape-based modeling in the browser, is free, and adds circuit and coding activities, but it needs an account to save projects.
SketchUp Free
Browser-based 3D modeler that offers an easy start into 3D design.
SketchUp Free is a browser-based modeler aimed at beginners; the free tier is web-only and the desktop apps require a paid plan, with no mobile apps listed.
SelfCAD
Browser-based 3D modeler that combines mesh editing with basic slicing tools.
SelfCAD moves you to browser-based mesh editing with basic slicing built in, so print preparation happens in the same tool, though performance depends on the device and browser.
BlocksCAD
A browser-based tool for creating 3D models with block-based visual programming, aimed at schools.
BlocksCAD swaps carving for block-based visual programming in the browser, with a teacher dashboard and lesson plans, but education features need a trial or school code.
Womp
Browser-based 3D modeler with squishy SDF-style geometry and simple materials.
Womp is a freemium browser modeler using blended SDF-style geometry that suits organic shapes, but it is less suited to precise mechanical tolerances and has no desktop app.
Goxel
Create 3D artwork from colored voxel blocks.
Goxel builds models from colored voxel blocks as free, open-source desktop software for Windows, macOS and Linux, with layers and several export formats, but no web or mobile version.
Similar software
Related functionality, not a direct replacement.
MagicaVoxel
A free voxel editor and path-traced renderer that makes good-looking blocky art with almost no learning curve.
OpenSCAD
A 3D modeller you write rather than draw: a script describes the object, and the program compiles it into a solid.
Sumo
Browser-based suite of creative apps for painting, photo editing, music, audio, 3D and coding.
MatterControl
Open-source desktop app for designing, slicing and controlling 3D prints on Windows, Mac and Linux.
Blockbench
A low-poly 3D model editor built for pixel-art textures, with dedicated formats for Minecraft Java and Bedrock.