3D Viewer Online vs Kompakkt

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.

Kompakkt has no write-up on Specifiction yet; its figures are above.