Solids is a free browser-based 3D CAD application designed for 3D printing. It allows you to create, edit, and export 3D models as STL files directly in your web browser without any downloads or installations.

Is Solids free to use?

Yes, Solids is completely free to use. There are no subscriptions, no account required, and no hidden fees. You can create and export unlimited 3D models.

What file formats does Solids support?

Solids supports STL export, which is the standard file format for 3D printing. Your models can be directly used with any 3D printer or slicing software.

Do I need to install anything to use Solids?

No installation is required. Solids runs entirely in your desktop web browser. Just visit solids.app on a computer and start creating 3D models immediately.

Is Solids a good alternative to Tinkercad?

Yes, Solids is an excellent free alternative to Tinkercad. It offers similar browser-based 3D modeling capabilities with parametric design tools, boolean operations, and direct STL export for 3D printing.

Solids: Online CAD for 3D Printing

Coming from Figma?

No learning curve for you. Draw shapes and just extrude them to 3D.

Boolean Operations

Union, subtract, and intersect shapes to create complex geometry from simple building blocks.

STL Export

Download print-ready STL files. Compatible with every slicer — Cura, PrusaSlicer, Bambu Studio, and more.

Zero Setup

Works in Chrome, Firefox, Safari, and Edge. Nothing to download — open the tab and start building.

Coming from Figma?

Boolean Operations

STL Export

Zero Setup

What people build with Solids