3D Viewer Online vs Sketchfab

3D Viewer Online is a browser service for sharing, inspecting and reviewing 3D models. Its 3D Player and APIs can embed models in websites, catalogues and other applications. The viewer provides rotation, panning, zooming, preset views and measurement tools for checking geometry and dimensions. Users can share browser links, while teams add comments, markups and attached datasheets or supporting documents. Access depends on each model’s sharing settings. Listed formats include STEP, IGES, GLTF, 3MF, STL, OBJ, DWG and DXF; DWG and DXF do not support 3D solids. Embedding is available through external links or iframes. The REST API accepts uploads and returns a viewer URL and model ID, with token access and rate limits discussed with the company. The WebGL viewer is described for recent browsers on PCs, tablets and smartphones. The free Regular plan allows ten models and 50 MB files. Premium is $10/month and Business $25/month, both billed monthly.

Sketchfab is a platform for publishing and finding 3D content through an interactive viewer. The viewer can be embedded on websites, allowing 3D and VR viewing without leaving the host site. Its built-in editor adjusts orientation, materials, lighting, camera parameters, and post-processing filters. Upload formats include OBJ, FBX, Blender, STL, and glTF, and exporter plugins are available for Blender, Maya, SketchUp, Unity, and ZBrush. APIs support model uploads, data access, downloads, and viewer control or embedding. The Download API provides glTF, GLB, and USDZ, not source formats such as FBX and OBJ; owners control whether their models are downloadable. Basic is free and allows model files up to 50MB. Pro costs $15 a month billed yearly, with a 200MB model limit and private uploads. Premium costs $79 a month billed yearly, with a 500MB limit and advanced embed customization. Enterprise pricing is by quote.