Getting Started

Welcome to Tritium. You're joining the future of legal drafting.

Get the latest build via the Download page. Tritium usage is subject to an annual fee. Enterprise users should check out the Deployment section below for more installation details.

Note for Linux users: for the best experience, be sure to install Microsoft fonts with e.g., sudo apt-get install -y ttf-mscorefonts-installer on Ubuntu.

If you'd like to try Tritium at work, please request a demo or put your IT professionals in contact with us at onboarding@tritium.legal.

Experience the Future

Tritium is a dedicated agentic drafting environment built for lawyers. Fire it up to experience features built for transactional lawyers.

• Multi-document library: Open a folder with Ctrl+Shift+O to get started. Tritium expects your matters to be grouped together on the filesystem or in your DMS and will treat each file as a member of the same suite of documents.

• Multi-document search: Search across all of the documents in the suite in real-time with Ctrl+Shift+F.

• Document drafting compatible with Word: If you don't have a folder to work with, just create a new file to experience customized word processing for lawyers.

• Real-time annotation of defined terms and other cross references: Watch as Tritium identifies defined terms and annotates them for you. Click through to navigate within and between documents within the suite.

• Minimal redlining: Tap Ctrl+Shift+G to produce minimal difference redlines directly in your word processor instantly. Or select files from your library to redline against each other.

• Word and PDF document review: Review PDFs alongside drafting your Word-compatible documents.

• LLM integrations: Tritium integrates with state-of-the-art foundation models offered by OpenAI, Anthropic, Google and others, or with your own proprietary LLM. Tritium passes your open documents as context to the LLM and allows you to interrogate and edit your Word documents and PDFs using an AI agent without leaving your application. Hit Ctrl+Shift+K to ask the LLM a question about your documents or have it recommend some edits.
• Tritium can be configured to use your LLM provider of choice at deployment.

Frequently Asked Questions

Does Tritium read and write Microsoft Word documents?

Yes, Tritium aims to be fully compatible with Microsoft Word. It uses the same file format as Word and is compatible with all Word features that are important to lawyers. Some features of Tritium, such as rich formatted comments may not be supported by Microsoft Word, however. In any such case, the ".docx" file rendered by Tritium will continue to be viewable with Microsoft Word with those additional features not visible.

Can I use it to edit PDFs?

No, editing PDFs is not yet supported by Tritium. While the roadmap includes commenting on PDFs, this is not yet supported.

What makes Tritium special?

Tritium is a fast and featureful drafting environment built for lawyers. It's designed to leverage modern hardware and avoid unnecessary features to maximize its speed. Tritium is featureful because it comes packed with features that transactional lawyers need on a day-in, day-out basis like redlining and defined term resolution. It abandons the fiction of the single-document context and lets you work across your suite of documents from a single window.

Where does Tritium store my documents?

Like most high-quality word processors, Tritium runs on your desktop. That means it can access any files that you have access to on your desktop. This includes integrations with your document management system, like iManage, NetDocuments or Sharepoint. The Assistant tool is configured at installation or via the Settings to speak to your language model of choice. No data is stored on Tritium servers.

Security

Tritium is network isolated by default and does not accept any inbound or outbound connections except to those endpoints you've specifically configured such as your DMS and LLM. Tritium Legal Technologies Limited does not receive or store any document data from this build. Tritium does not send telemetry data, although this may be added as an opt-in only feature in the future. Users that utilize the LLM integration will also transmit data to the configured LLM provider. LLM integration may be locked at install time.

Tritium is developed in memory-safe Rust code. After installation, the application runs entirely in user-space; no services or drivers are installed. The MSI binary is signed by Tritium Legal Technologies Limited.

Reach out to us if you have any additional security-related questions at security@tritium.legal.

Deployment

Un-versioned, air-gapped nightly builds are available on the downloads page.

Download and usage of Tritium requires a paid license.

Windows-Specific Considerations

• System-wide install: The MSI installs in Program Files, requiring admin privileges. Tritium is then available to all users on the machine.
• Silent / unattended install: Run msiexec /i tritium-commercial.msi /quiet (add typical flags such as /norestart or /log as required).
• Optional features: enable optional features at install time with properties. Pass AUTO_UPDATE_ENABLED=1 or ASSISTANT_ENABLED=1 to enable automatic updates and/or the assistant tool. These features can be enabled by setting the corresponding values at HKLM\SOFTWARE\Tritium\Tritium
• Advanced Assistant Configuration: hardwire your enterprise's assistant settings upon installation. These features can be passed to `msiexec` or be enabled by setting the corresponding values at HKLM\SOFTWARE\Tritium\Tritium.

  Property	Type	Description	Required?
  ASSISTANT_ENABLED	Boolean	Enable the AI assistant feature. Set this to 1 to enable or 0 to disable.	yes
  PROVIDER_NAME	String	Set the LLM provider (e.g., "OpenAI" or "Harvey", or use a custom name to identify your proprietary system). This value is case insensitive	yes
  PROVIDER_KEY	String	An API key for the LLM provider.	yes, if PROVIDER_KEY_PATH is empty.
  PROVIDER_KEY_PATH	String	A file path to the file containing an API key for the LLM provider.	yes, if PROVIDER_KEY is empty.
  PROVIDER_URL	String	A file path to the file containing an API key for the LLM provider.	yes, if PROVIDER_NAME names a Custom provider (i.e., not OpenAI or Harvey).

Data and Configuration

• User data directory: Tritium stores all state at %APPDATA%\Tritium Legal\tritium\data\. Back up this folder to preserve documents and preferences.
• System fonts access: The application reads fonts from %WINDIR%\Fonts. Ensure policies do not block read access.
• Graphics: OpenGL 2.1 or higher is required (ensure 3-D acceleration is available on virtual machines).
• No services or drivers: Installation adds no Windows services, drivers, or system-level components.

Updates and Network Access

• Auto-update: A helper binary is included as updater.exe and the application periodically contacts https://tritium.legal over HTTPS (port 443) to fetch new builds. If auto-update is enabled in the. It is disabled by default.
• AI Assistant (optional): When enabled, the “assistant” feature makes outbound HTTPS requests to the configured LLM provider endpoints. Allow those domains through the firewall according to your deployment plan.
• Enterprise upgrades: Licensed customers can fetch the latest build at their designated download location or via the SFTP server. Replace the previous MSI in your software-distribution share and redeploy.

Example - Deploying Tritium Across a Small Enterprise

1. Download the installer: Retrieve tritium-commercial.msi from your designated download location.
2. Create a file-share: Copy tritium-commercial.msi to a central share, for example \\fileserver\installers\tritium\.
3. Create an install script: Save the following as install_tritium.cmd in the same share:

   @echo off
   msiexec /i "%~dp0tritium-commercial.msi" /quiet /norestart ^
     /log "%~dp0tritium_install.log"
   

4. Deploy via Group Policy:
   • Open Group Policy Management.
   • Create a new GPO named “Deploy Tritium vX.Y.Z”.
   • Navigate to Computer Configuration → Policies → Windows Settings → Scripts (Startup/Shutdown).
   • Add the startup script:

     \\fileserver\installers\tritium\install_tritium.cmd.

   • Link the GPO to the OU that contains the PCs.
5. Open firewall egress: Permit outbound TCP 443 to tritium.legal if auto-updating is configured (and LLM provider domains if the assistant feature is enabled).
6. First-login verification: After machines reboot and users log on, confirm that Tritium launches automatically and that %APPDATA%\Tritium Legal\tritium\data\ exists.
7. Ongoing updates: Allow auto-update to fetch nightly releases, or periodically replace tritium-commercial.msi in the share with the latest signed build and let the same GPO reinstall silently.

Reach out to us if you have any additional deployment-related questions at distro@tritium.legal.