Make yourself at home.

Install HiveMind

Download the Windows x64 installer, run Setup, and open HiveMind from the Start menu. A desktop shortcut is optional. Installation is for your Windows account.

Requires Windows 10 version 2004/build 19041 or later, or Windows 11, with x64 support. There is no native ARM64 build. Setup includes .NET, Windows App SDK, and Microsoft's signed offline WebView2 prerequisite; a compatible existing runtime is reused.

Your services and conversations

Choose ChatGPT, Claude, t3.chat, Perplexity, or Gemini, then sign in with your own account. You can add a custom service with a clean HTTPS home address, without private URL tokens. Each service has its own sidebar button and browser profile. Your normal browser's login is not imported.

Use New chat to start another tab. Switching services brings back that service's conversations, including the last selected tab. Right-click its sidebar button for conversation and appearance options.

HiveMind supports up to 30 open tabs and 30 custom services. Reopen up to 20 recently closed tabs during the current session. Removing a service does not delete its retained browser profile.

Tabs restore on startup by default and initialize when selected. Switching services does not deliberately suspend answers; the moon control explicitly sleeps or wakes a tab. Saved URLs omit query strings, fragments, and common authentication redirects, so some pages reopen at the service home.

Make it feel like you

Open Settings at the bottom of the sidebar. Choose Graphite, Midnight, Light, or Follow Windows; Gold, Blue, Teal, Purple, or Rose accents; and Compact or Comfortable spacing.

Each service can inherit the app appearance or have its own theme and accent, including its service color. Select Save changes to apply your choices. Cancel leaves the previous settings intact.

HiveMind requests a matching light/dark browser scheme. Provider settings may take priority, and the website controls its own styles and spacing.

Attachments and downloads

Use the website's attachment control or HiveMind's paperclip. Supported flows use native Windows file/folder pickers, including multiple files where the provider allows them. You can also drop files onto the paperclip.

If the paperclip cannot find the input, first open the provider's attachment menu. Navigation invalidates pending selections. The browser chooser remains a fallback. The provider controls file limits, validation, progress, and upload completion.

Open Downloads with Ctrl + J for progress, pause/resume where supported, cancellation, Open, and Show in folder. Files default to your Windows Downloads folder's HiveMind subfolder. Settings lets you choose a different folder or ask where to save each file.

Active and paused transfers protect their source tabs from closure or sleep. Keep the app open to finish downloads; they do not resume across app restarts. Clearing the Downloads panel preserves saved files and Media entries.

Find your Media

Open Media at the bottom of the sidebar, or press Ctrl + Shift + M. Search filenames and service names, and filter by service, activity, and file category.

Open files, show their folders, or return to their Source. Source selects the original live tab if available, even if it has navigated elsewhere. Otherwise it opens the sanitized saved URL. Active downloads link to transfer controls.

Media remembers up to 300 recent metadata entries locally, not copies of your files. Turn off Remember media history on this device and save Settings for session-only history. Removing or clearing eligible history keeps files and active transfers.

A few useful shortcuts

Web content can consume shortcuts while focused. Native controls remain available.

If something gets in the way

For sign-in trouble, first check the provider in your default browser. Some services restrict embedded browsers. Use Open in default browser from the tab actions menu when needed; that browser has its own account state.

For missing files, clear Media filters and check the original folder. For saves that fail, check permissions and disk space. For a sleeping tab, use the wake control. Preserve unsent text before reloading an unresponsive page.

Settings provides Open local data folder. If you need a reset, close HiveMind and make a private backup before renaming its data folder. Never share browser profiles, workspace/Media JSON, or personal screenshots as a bug report.

Updates are manual: close HiveMind after transfers finish, download the new installer, and rerun Setup. Uninstall through Windows Settings → Apps. Your personal data and downloaded files are retained. Read the privacy guide for details.