nullCarbon Revit Export is a per-user Autodesk Revit add-in that exports
schedules straight to the nullCarbon LCA (Life Cycle Assessment) platform.
Supports Revit 2023, 2024, 2025, 2026, and 2027. Installs without admin rights
under %LocalAppData%\nullCarbon-LCA-Export\ and adds a single "nullCarbon"
ribbon tab with the Export button.
Publisher’s description
What is nullCarbon Revit Export?
nullCarbon Revit Export by nullCarbon is open-source Windows software. It is written in C#.
Installation and requirements
The publisher provides MSI installers for 64-bit Windows. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 26.5.0, released on October 8, 2026. The version history goes back to April 13, 2026: 3 releases, all linked to the official files. The last update is less than a month old.
Project description on GitHub: “Revit Add-in ”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
Cons
- No native ARM64 build
In short: nullCarbon Revit Export is an open-source Windows tool for 64-bit PCs. Administrators can deploy it unattended.
Is nullCarbon Revit Export safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
421C7EAC396B44C96FE2D5468E9649D88E2F3FB1B15E39B51CD10BB2924274B7· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 3 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 26.5.0Latest | October 8, 2026 | — | 64-bit MSI |
| 26.4.3 | September 29, 2026 | — | 64-bit MSI |
| 26.4.2 | April 13, 2026 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id nullCarbon.RevitExport -emsiexec /i nullCarbon-LCA-Export-win64-26.5.0.msi /qn /norestart /qn /norestartmsiexec /x {76F55987-65A6-40F2-A34D-ECB6E4EE9BCD} /qn /norestartRelated guide: How to use winget: install and update apps
Information
- Publisher
- nullCarbon
- Licence
- LGPL-3.0-or-later
- Price
- Free
- Source code
- github.com/bhupas/revit
- Written in
- C#
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 26.5.0
- Released
- October 8, 2026
- Added to the catalogue
- April 13, 2026
- Versions listed
- 3
- Website
- github.com
- winget ID
- nullCarbon.RevitExport
- MSI product code
- {76F55987-65A6-40F2-A34D-ECB6E4EE9BCD}
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is nullCarbon Revit Export free?
Yes. nullCarbon Revit Export is open-source software under the LGPL-3.0-or-later licence.
Is nullCarbon Revit Export safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install nullCarbon Revit Export with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can nullCarbon Revit Export be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does nullCarbon Revit Export run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of nullCarbon Revit Export?
The versions page lists all 3 versions with links to their official installer files, back to April 13, 2026.
Can I use nullCarbon Revit Export without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.