Reviews, files, and versions

Review 3D models in GLB, FBX, STL and OBJ

Explore models, add points, arrows and areas, compare versions and record approval in the 3D pilot.

Who this is forOwnersAdministratorsMembersCreative teamClients and reviewers

Reviewed on October 12, 2026

Before you start

A self-contained GLB or FBX, STL or OBJ file up to 50 MB, also within your plan limit, and up to 1 million triangles.
A WebGL-enabled browser and permission for the action you want to perform.
Binary or ASCII FBX 7.0–7.7: embed PNG, JPEG or WebP textures. The viewer shows the initial pose without playing animations; renderer-specific materials may look different.

Quick task overview

Start with these steps. If the task has more steps, they appear right below.

Step 1
Create a review or add a version to an existing review and upload the model through the regular file flow.
Step 2
Choose the file and version. Drag to rotate, scroll to zoom and use the 3D navigator views to find the detail.
Step 3
Use the review annotation tools: point, arrow, rectangle, ellipse, line or freehand. Start on the surface and write your comment in the side panel.

4To correct your own markup, open its editor. Move, redraw or adjust the area, then save. Undo and redo affect the draft being edited.
5Upload the update as a new version. Compare side by side, with an overlay or with visual differences, and rotate to inspect other sides.
6On the current, unlocked version, people with decision permission can approve or request changes. Export the comment report for the selected file and version to document the feedback.

The comment stores the model position, view and appearance. The report includes a 3D capture of exported markups.

Model will not open: check file size, triangle count and WebGL. GLB with Draco, KTX2 or external references is not supported in this pilot.
STL and OBJ use a neutral material. To review colors and textures, export a self-contained GLB.
Cannot comment or decide: check your role, the current version and whether the review is locked. A guest link does not automatically grant every action.
Comparison is visual and does not measure manufacturing dimensions or tolerances. Export BLEND and native CAD files to a supported format.