Datum
BIM in the browser

Building information modelling, all on the web.

Datum is a 3D building information modelling platform that takes a project from schematic design to construction documents, all in your browser. Hand tasks off to AI agents that work in the project alongside your team, and see every colleague live as their changes land in real time.

Sign in See what's inside
Datum open on a multi-storey steel and concrete building in 3D, its frame, floors and piles coloured by category, with the Project Browser's views on the left, the 3D view's Properties on the right and two teammates present in the top bar.

All on the web

Nothing to install and nothing to sync. A project is a link: open it on any computer and its models, views and sheets are there, kept on the server with every version you've saved.

Live, as it happens

Everyone on a project works in the same model. Walls, roofs and dimensions show up for the whole team as they're drawn. See who's here, where they're pointing and what they've selected, and follow their view.

Datum Agent

An AI agent inside the viewer that takes on modelling and documentation work. Ask it to build a component from a cut sheet, raise a roof over the walls or dimension a plan, and it does it with the same tools you use, as one change you can undo.

Available with admin access.
Datum Agent

Ask for the work, not the clicks.

Datum Agent works inside your project with the app's own tools, so everything it makes is a normal change: selectable, editable and one Undo step. It follows the skills your office writes, from how you dimension drawings to your component standards.

  • Builds parametric components from a description, a sketch or a cut sheet, and talks the sizes through first.
  • Models roofs over the walls you point at, and matches them to a photo.
  • Dimensions plans and sections to grids, levels, wall faces and the elements of loaded models.
  • Finds, colours, isolates and measures what's in the model, and answers questions about it.
  • Learns your office's rules as skills that every chat can use.

Datum Agent is available with admin access.

The Datum Agent window beside the 3D view: it asked six questions about a dimensional lumber section, took the answers and is building the component in the background.
Construction documents

Plans, sections and sheets, cut from the model.

Floor plans, ceiling plans, elevations and sections come straight from the model, so they are never out of date. Draw on them, set their scale and line weights, and lay them out on sheets.

  • Hidden Line views, with the project's own line weights at every scale.
  • Dimension strings, leaders, detail lines, filled regions and drafting views.
  • Views placed on sheets, and section and elevation markers that open the view they cut.
  • Temporary dimensions and typed keys for commands, so it works the way you already do.
Cross Section A of the house, cut from the model: the two storeys with their level lines, on white paper beside the Project Browser.

Everything else a project needs.

One place for the model, the people on it and the documents that come out of it.

Components

A Component Editor for parametric components, a shared library with versions, and doors and windows that cut their own openings.

Schedules

Category schedules of what's in the model, as a table you can filter and export.

IFC in and out

Load IFC models, and export what you've modelled as IFC with stable identifiers.

Copy between projects

Copy elements, their types and components from one project and paste them into another.

Clash detection

Rulesets and results kept with the project, shared with everyone who has it open.

Comments

Pin a comment to the model for everyone on the project, with replies, resolve and reopen.

Versions

Save a version to come back to, restore it for everyone, and undo the restore.

Keys you already know

Typed keys for commands, as in Revit, with every shortcut yours to change.