System Requirements
What your browser and network need to run CATO.
Supported Browsers
Keep your browser updated. Chrome and Edge are the most thoroughly tested, especially for large uploads and 3D viewers.
| Browser | Versions | Status |
|---|---|---|
| Google Chrome | Current and previous stable | Recommended |
| Microsoft Edge | Current and previous stable | Recommended |
| Mozilla Firefox | Current and previous stable | Supported |
| Safari | Current and previous stable | Supported |
| Internet Explorer | Any | Not supported |
Browser Capabilities
JavaScript
Required for the application and workspace tools.
Cookies
Required for sign-in and secure session management.
Local storage
Used for your interface preferences and open tabs.
WebGL
Required for interactive 3D molecular and scientific viewers.
Downloads
Allow downloads to export reports, figures, notebooks, and data.
Pop-ups
Allow them for CATO to open files in a new tab and to export a manuscript as PDF.
Operating System and Display
CATO runs on Windows, macOS, Linux, ChromeOS, iPadOS, and other systems that can run a supported browser. A desktop or laptop viewport of 1280 × 720 or larger is recommended for the three-pane research workspace; smaller screens remain usable for focused tasks.
Network Requirements
| Transport | Outbound HTTPS on port 443 |
| Streaming | Long-lived HTTPS connections and server-sent events must not be blocked or buffered |
| Uploads | A stable connection is recommended; practical bandwidth depends on file size |
| Firewall or VPN | Allow the CATO domain |
Managed networks: if responses remain on “Connecting,” arrive all at once, or reconnect repeatedly, ask IT to disable proxy buffering and aggressive idle timeouts for the CATO domain. Content filters should also permit file uploads and downloads.