Getting Started

Welcome to Tritium! You're joining the future of word processing for lawyers. Here is a jumping-off point to get started.

Watch the below introduction video to get an overview of Tritium.

Download Tritium

Get the latest stable build via the Download page. Tritium is free for personal use. To use it professionally, you'll need a commercial license. Commercial users should check out the Deployment section below for more installation details.

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

Experience the Features

Tritium is a word processor 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.

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

• Optional LLM integrations: Optionally integrate Tritium with state-of-the-art foundation models offered by OpenAI, Anthropic, Google and others, or integrate with your own proprietary LLM. Tritium passes your open documents as context to the LLM and allows you to interrogate your Word documents and PDFs without leaving your word processor. Hit Ctrl+Shift+K to ask the LLM a question about your documents.

Tritium includes the following features, depending on your platform and license:

^* Note: optional features are disabled by default.

Feature Roadmap

Future versions of Tritium aim to support the following features:

• PDF redlining
• Commenting on PDFs
• Proprietary lightweight version control and document management system
• Integrations with DMS providers
• Annotation of statutory and other external references

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 word processor built for lawyers. It's designed to leverage modern hardware and avoid unnecessary features to maximize its speed. Unlike other word processors, Tritium displays its render speed in terms of frames per second (FPS). This means that you can always see how fast Tritium is running, and hold it accountable. Tritium aims for a steady 60 FPS so that it feels like an extension of your mind. 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. It does not send the documents anywhere or store them in any cloud environment other than those which you have specifically configured it to do so through an integration. No integrations are enabled by default. However, integrations are forthcoming for iManage, SharePoint, NetDocuments and other common document management systems.

Security

Tritium is network isolated by default and does not accept any inbound or outbound connections. Tritium Legal Technologies Limited does not receive or store any document data. The commercially-licensed desktop application does not send telemetry data, although this may be added as an opt-in only feature in the future. Users that add the LLM integration will also transmit data to the configured LLM provider. LLM integration is excluded by default and must be manually added at install-time and cannot be enabled.

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 the founder with transition to an Extended Validated Code Signing Certificate in the name of Tritium Legal Technologies Limited imminent.

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

Deployment

Un-versioned, nightly builds are available for commercial and individual users on the downloads page (e.g., https://tritium.legal/static/tritium.msi for Windows users). These builds come with the auto-update feature enabled. To take advantage of this feature enterprise customers should ensure that group policies allow access over HTTPS (port 443) to tritium.legal.

Air-gapped desktop builds for commercial users are also available via an SFTP server. Once onboarded, commercial users will have the option to provide a SSH public key. They will then be granted access to the builds at [customer]@distro.tritium.legal. There, the LATEST.txt file will contain the filename of the latest release binary. The Windows distribution will be in x.y.z.msi format generally following semantic versioning principles. Each released version will also be contained in that directory. Nightly builds are available in the same directory as tritium-nightly.msi.

Windows-Specific Considerations

Community Build

• Per-user install (no admin privileges): The MSI installs under the current user’s profile (for example, %LOCALAPPDATA%\Tritium) and never writes to C:\Program Files or HKLM. No elevation prompt appears.
• Single-user application: Tritium is installed and runs only for the Windows account that executed the MSI.
• Automatic launch after install: The installer starts tritium.exe automatically once setup completes.

Commercial Build

• 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.msi /quiet (add typical flags such as /norestart or /log as required).

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 (community): A helper binary is included as updater.exe and the application periodically contacts https://tritium.legal over HTTPS (port 443) to fetch new builds. Auto-update is enabled in the standard "community" MSI accessible on this website. It is disabled by default in the versioned binaries available via the SFTP server. Nonetheless, commercial license holders may choose to use the MSI available at https://tritium.legal/static/tritium.msi to utilize the auto-update feature.
• AI Assistant (Web Preview, optional in commercial builds): 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.
• Manual upgrade (community): Download the latest MSI from https://tritium.legal/static/tritium.msi and run it. The installer upgrades the existing copy in place.
• Enterprise upgrades (commercial): Licensed customers can fetch versioned MSIs from the Tritium SFTP server (distro.tritium.legal). Replace the previous MSI in your software-distribution share and redeploy.

Example – Deploying Tritium Across a Small Enterprise

1. Download the installer: Retrieve tritium.msi from the link above (or your SFTP account for the air-gapped commercial build).
2. Create a file-share: Copy tritium.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.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). Auto-updating is enabled by default in the community build, but disabled in the commercial build. The commercial build is available via the SFTP server.
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.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.