Free browser viewer for 3dm files + stream Grasshopper live to a link (gh-bridge)

differential.tools is a free browser viewer that opens Rhino 3dm files directly, with layers, sections, measure and markup, no install and no account to view. It also opens IFC, SKP, OBJ, STEP, glTF, DXF and other formats in the same scene, so you can put a Rhino model next to a consultant's file.

gh-bridge is the Grasshopper part: a small Windows app that streams geometry from Rhino + Grasshopper into that viewer over WebSocket. Rhino keeps running on your PC, no server-side licensing. Label the sliders you want to expose with an "_IN" suffix and the web UI builds itself. Generate a link, send it to a client or colleague, and they move the sliders and see the result live without Rhino.

Free during beta.

Viewer: https://www.differential.tools
gh-bridge setup guide: https://forum.differential.tools/t/how-to-gh-bridge/