> For the complete documentation index, see [llms.txt](https://sync.wiki.mksdtech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sync.wiki.mksdtech.com/rhino-sync.md).

# Rhino Sync

Multi-user collaboration for Rhino 8. Work on one shared model and lock, reload and synchronize objects.

<figure><img src="https://2088031227-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FMFZITZJW4MHLYhDLac3k%2Fuploads%2FrFvITmMJP0soLxAdQGuw%2Fsync.png?alt=media&amp;token=f8b170ae-c893-4425-a9ed-53681774d97d" alt="Rhino Sync logo" width="360"><figcaption></figcaption></figure>

Rhino Sync lets a team work on the same Rhino model at the same time.

Everyone opens a local copy of one shared central file. When you change an object, Sync reserves it for you. Your teammates see your changes when you synchronize.

Rhino Sync is in beta and free to use.

<a href="https://www.mksdtech.com/downloads?product=rhino-sync" class="button secondary">Download Rhino Sync</a>

## What you can do

* Share geometry, blocks, layers, materials and more across your team. See [What Rhino Sync synchronizes](/reference/what-is-synchronized.md).
* Keep teammates from editing the same object at the same time.
* See who holds which objects, in each person's colour.
* Stream display-only previews of your edits with [Live Previews](/collaboration/live-previews.md).
* Talk to your team in [Sync Chat](/collaboration/sync-chat.md).
* Keep the central file on a [network drive](/collaboration/collaborate/collaboration-storage/network-drive.md) or in [Google Drive](/collaboration/collaborate/collaboration-storage/google-drive.md).

## Get started

{% stepper %}
{% step %}

### Install

Install Rhino Sync on every computer in your team. See [Installation](/installation.md).
{% endstep %}

{% step %}

### Collaborate

Put the central file on shared storage and click **Collaborate**. See [Collaborate](/collaboration/collaborate.md).
{% endstep %}

{% step %}

### Reload and synchronize

Click **Reload** to get your teammates' work. Click **Synchronize** to share yours. See [Collaboration](/collaboration.md).
{% endstep %}
{% endstepper %}

## Requirements

* Rhino 8.14 or later, on Windows or macOS.
* A network drive or a Google account for the central file.
* Internet access to `sync.mksdtech.com`.

{% hint style="info" %}
When you collaborate, reload or synchronize, your `.3dm` files are never stored on MKS DTECH servers. They move only between your computer and your network drive or Google Drive.
{% endhint %}

{% hint style="warning" %}
Rhino Sync connects to `https://sync.mksdtech.com` over HTTPS with WebSockets. If your firewall blocks it, you can't collaborate. Ask your IT team to allow it. See [Deployment for IT teams](/installation/it-deployment.md).
{% endhint %}

## How it differs from Rhino Worksessions

|           | Rhino Worksessions                                                           | Rhino Sync                                                  |
| --------- | ---------------------------------------------------------------------------- | ----------------------------------------------------------- |
| Model     | Each person edits their own file. Others attach it as a read-only reference. | Everyone edits one shared model.                            |
| Control   | Per file.                                                                    | Per object: geometry, layers, blocks and more.              |
| Conflicts | Avoided by splitting the work into files.                                    | Avoided by reserving each object for the person editing it. |

Worksessions remain a good fit for many projects. Rhino Sync adds object-level collaboration on a single model.

## Support

Rhino Sync is in beta. Keep backups of important models.

Some plug-ins can conflict with Rhino Sync and cause crashes or missing-method errors. If that happens, disable plug-ins you don't use and try again.

Send comments and issues to <info@mksdtech.com>, or post on the [Rhino Sync forum](https://discourse.mcneel.com/c/plug-ins/rhinosync/179).