head to head/Design Tools

Spline vs STL File Converter

Neck and neck on boosts. Profiles, pricing and deals below.

Spline

3D design for the web, no 3D degree required

community boosts

⚡ 0

pricing

Freemium

what it is

Spline makes interactive 3D scenes as approachable as a Figma frame: model, animate and embed 3D directly into websites with drag-and-drop ease. The tool behind half the floating 3D blobs on modern landing pages.

STL File Converter

Free Online STL Converter (OBJ, GLB, 3MF)

community boosts

⚡ 0

pricing

Free

what it is

STL File Converter provides browser-based mesh conversion for 3D workflows, including OBJ to STL and STL to OBJ. The existing free converter is intended for preparing supported model files for other tools. This submission describes mesh conversion only, not AI generation, payment features, or unsupported PLY conversion.