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TabBunker icon

TabBunker

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TabBunker opens a panel where you choose which tabs to save in a local vault and whether to close them after saving. It keeps snapshot history inside the browser. With file backup enabled, changes also write a JSON file to the Downloads folder; that file remains if the extension...

TabBunker screenshot 1

Cost / License

  • Free
  • Open Source (MIT)

Application type

Since

  • New

Updated

  • Updated Oct 2026

Platforms

  • Google Chrome
  • Mozilla Firefox
  • Microsoft Edge
TabBunker screenshot 1
TabBunker screenshot 2
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AlternativeTo Categories

Backup & Sync, Web Browsers

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TabBunker was added to AlternativeTo by elite-kid on and this page was last updated .

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What is TabBunker?

TabBunker opens a panel where you choose which tabs to save in a local vault and whether to close them after saving. It keeps snapshot history inside the browser. With file backup enabled, changes also write a JSON file to the Downloads folder; that file remains if the extension is removed and can be imported after reinstalling. Restore and import show a preview first, and an import can be undone in one step. It imports OneTab text, TabBunker JSON, and older Session Buddy JSON using sessions/windows/tabs structures. Session Buddy v4 collections/folders/links JSON is not supported by TabBunker 1.1.1. To transfer addresses from the current Session Buddy version, export URLs and import the plain URL list; original titles and collection names are not preserved. It exports JSON, OneTab-compatible text, or HTML bookmarks. There is no product account or developer-operated storage server. It is a desktop browser extension, free and MIT licensed, and available in English and Korean. Mobile Chrome is not supported. File backup can be turned off, and it does not protect a deleted file or a failed disk.