Holdall

• All tabs, one window. Every linked browser's open tabs, live. A browser's tabs stay visible while it's closed.
• Recently Closed. Every tab you close is kept, to reopen in any browser.
• Open anything anywhere. Open a tab or saved link in another browser, and its login comes along.
• Default browser. See which browser opens web links, and switch it from the app or the menu bar.
• Passwords. Saved, encrypted, when you sign in. Fill them into any linked browser. They never leave the Mac.
• Saved links and logins. Keep links, and a site's login, to sign any linked browser in later.
• Passkey linking. Link a browser from inside it with Touch ID, or with one click from the app.
• MCP for agents. Claude Code and other agents can list and reopen tabs and fill passwords, without ever seeing them.

Safari can only open links: it can't share its tabs or keep logins. Private windows are never shared.

Made for my own Mac. It holds logins and passwords, so it isn't up for download.

• →Send a friend a tab without your logins in it.
• →Tabs that tidy themselves away after a week, kept for later.
• →A timeline of what you had open on any day.

Want one of these, or something wilder? Let's make it.