
3D Repo
Cloud-based BIM coordination and collaboration platform
About 3D Repo
3D Repo is a browser-based BIM (Building Information Modelling) and digital twin platform that lets architects, engineers, and construction teams collaborate on 2D, 3D, and 4D models in a single cloud environment. It supports issue tracking, clash and change detection, health-and-safety risk management, and broad file-format compatibility so distributed project teams can identify and manage risks without installing software.
Pros & Cons
Pros
- Fully browser-based with nothing to install, so any stakeholder can collaborate instantly
- Strong change detection via patented 3D Diff that works across different file types
- Built-in health-and-safety risk management (SafetiBase) aligned to BIM standards
- Broad file-format support including Autodesk, Bentley, and open IFC/BCF formats
- Open API and embeddable viewer for custom dashboards and applications
- Vendor-lock-in averse, letting teams use and export their data freely
Cons
- Pricing for paid tiers is not published and requires contacting sales for a quote
- Focused on AEC/BIM workflows, so it is not a general-purpose collaboration tool
- Advanced features like Unity integration and API support are gated behind sales conversations
- Niche construction-industry focus means a learning curve for non-BIM users
Key Features
Cloud-Based Platform
Totally browser-based BIM environment accessible from anywhere with no software to install, keeping the whole project team on the latest model revisions.
Issue Tracker
Record pins directly in the 3D model to flag issues, assign them to specific stakeholders, and maintain a full audit trail for accountability and transparency.
SafetiBase
Collaborative health-and-safety risk register that associates risks directly to the model, conforming to PAS 1192-6 for structured H&S information sharing in BIM.
3D Diff Change Detection
Patent-pending tool that highlights exactly what changed between two model revisions across different file types and modelling applications, even when object IDs are missing.
Data Validation with Smart Groups
Group and validate model elements for progress tracking and reliable data outputs, democratising validation regardless of software expertise.
4D Construction Sequencing
Import projects from Bentley Synchro to evaluate virtual construction sequences, attribute risks to tasks, and support site induction and training.
Broad File Format Support
Handles Autodesk (RVT, NWD, DWG), Bentley (DGN, SPM), open formats (IFC 2x3 and 4.0, BCF), and other formats such as FBX and OBJ.
API and Embeddable Viewer
REST APIs and an embeddable 3D viewer let teams build custom dashboards, reporting, and bespoke web applications on top of their BIM data.
Plugins and Integrations
Authoring-tool plugins publish models directly to 3D Repo, with integrations including Autodesk Construction Cloud, Power BI, HERE Maps, and Unity.
Pricing
- Get set up in under 15 minutes
- No credit card required
- No software to install
- Cloud-based model collaboration
- Issue tracking
- SafetiBase
- Data validation
- Model checking
- 4D support
- API access
- Live chat support
- Everything in Small Teams
- Up to unlimited storage and processing
- Up to unlimited users
- Unlimited projects
- Priority live chat and email support
- Everything in Project Teams
- 100+ users
- Service level agreement
- Unity integration
- Prioritised roadmap changes
Best For
BIM Coordination
Centralise multi-discipline 3D models in the cloud so architects, engineers, and contractors always work from the latest revision.
Clash and Change Detection
Use 3D Diff and issue pins to spot model changes and clashes between revisions before they reach site.
Health and Safety Management
Capture and assign project risks directly on the model with SafetiBase to mitigate hazards before construction begins.
4D Construction Planning
Sequence construction virtually to rehearse build order, train site teams, and identify hazards in advance.
Custom BIM Dashboards
Build bespoke reporting and embedded model viewers using the 3D Repo API and Power BI templates.
Similar Tools

Notion
The connected workspace for docs, wikis, and projects

Asana
Work management platform that helps teams orchestrate their work

Monday.com
Work OS that powers teams to run projects and workflows with confidence

ClickUp
One app to replace them all - tasks, docs, goals, and more

Planable
Social media collaboration and approval made simple

Gmail
Secure, smart, and easy-to-use email from Google