Free Online 3D Shape Generator

The Meshy 3D Shape Generator is a free online tool that builds parametric 3D shapes directly in your browser, including solid primitives, flat extrusions and hollow forms. You can customize each shape's material, color and style, then export it as a PNG image or a GLB or STL 3D model, with no signup required.

Yes. Creating and exporting 3D shapes as PNG, GLB or STL is completely free, with no signup, no credit card and no watermark. You can generate and download as many 3D shapes as you want.

You can create eight solid primitives (cube, sphere, cylinder, cone, torus, capsule, octahedron and pyramid), six flat extruded shapes (circle, triangle, square, pentagon, plus and minus), and hollow variants of the flat shapes. Every shape is generated for you and ready to restyle, so you can change its material, color and finish before you export.

You can export a transparent PNG image, a GLB 3D model for games, AR and VR, or an STL file for 3D printing and slicing. All three formats are free and have no watermark.

Yes. Export your 3D shape as an STL file and load it into any slicer, such as Cura, PrusaSlicer or Bambu Studio, to 3D print it. STL is the standard 3D printing format, so it works with virtually every printer.

No. The 3D shape generator runs entirely in your web browser, with no downloads, plugins or account required. It works on any modern browser across desktop, tablet and mobile.

Yes. Choose from clay, glass, metal, glitter and other material presets, then pick a solid or gradient color. You can also switch between a solid fill and an outline (wireframe) style for a different look.

Yes. The 3D shapes you create are yours to use in both personal and commercial projects, with no attribution and no watermark. That includes games, apps, videos, print designs and client work.

Open the 3D shape generator and pick the cube or sphere from the shape picker, then customize its material, color and style. Your 3D cube or sphere renders instantly in the live preview and exports as a PNG image, GLB 3D model or STL file in one click.

Yes. PNG export uses a transparent background by default, so you can drop your 3D shape straight into presentations, thumbnails, websites and design mockups with no extra editing.

Solid renders your 3D shape as a filled surface with full material and lighting, while Outline draws only the edges as clean 3D line art. Outline suits diagrams, blueprints and minimalist icons; either way, the GLB or STL model you download stays a solid, printable mesh.

Yes. The GLB and STL exports are standard 3D formats that import directly into Blender, Unity, Unreal Engine, Godot and most other 3D and game engines, with no conversion required. GLB keeps materials and colors, while STL is best for 3D printing.

No. Every 3D shape is parametric and ready-made, so you simply pick a primitive and adjust a few options, with no 3D modeling experience needed. You do not need software like Blender or Maya to create or export your shape.

The 3D shape generator builds precise geometric primitives instantly in your browser with no AI prompt needed. When you want more detail, open your shape in Meshy's AI 3D workspace to add textures or turn text and images into fully detailed 3D models.