Get Larksail

A OneTab alternative that never loses a list

OneTab’s single button is brilliant, and Larksail keeps that speed: save a whole window in one click. What changes is everything after. Your tabs land in named collections you can search, rearrange and annotate. Every closed tab is archived, every automatic action has an undo, and automatic backups keep a copy outside the browser.

Add to Chrome — it’s free Add to Firefox — it’s free Add to Firefox Add to Chrome

Larksail is a desktop browser extension. Open this page on your computer to install it.

Move over in three steps

About a minute. Importing never changes or deletes anything already in Larksail.

  1. Export from OneTab

    In OneTab, open “Export / Import URLs” and save the list as a .txt file. Better OneTab’s JSON export works too.

  2. Install Larksail

    Add it to Chrome, Firefox, Edge or Brave. No account to create.

  3. Import the file

    Open Larksail’s settings, go to Import & export, and pick the file. Each OneTab group becomes its own collection, in the same order as in OneTab.

What comes along

Your OneTab data, intact.

Larksail reads OneTab’s export format directly, and tells you about anything it had to skip.

  • Each tab group becomes a collection
  • Group names, if you gave them names
  • Every URL and title, in order

What you get on top

Unlimited and free

No caps on collections or saved tabs, no account, no trial.

Never loses a tab

Every closed tab goes to a searchable archive, and every automatic action has an undo.

Manages open tabs too

Suspend idle tabs, auto-archive old ones, merge windows and close duplicates.

Yours to keep

Stored on your computer, backed up to your Downloads, exportable as JSON, Markdown or bookmarks.

Switching from OneTab: questions

Is Larksail as quick as OneTab?

Saving a window is still one click, or one shortcut (Alt+Shift+S). The difference is what happens after: named collections, search, notes and an undo.

What if my OneTab list is huge?

Larksail is built for heavy users and stays fast with thousands of saved tabs. Import as many groups as you have.

Can I keep using OneTab while I try Larksail?

Yes. Importing reads a copy of your data and changes nothing in OneTab. Importing into Larksail only ever adds; it never overwrites what’s already there.

Is Larksail free?

Yes, with no limits on collections or saved tabs, and no account.

Bring your tabs home.

Free, private, and no limits — with an undo for everything.

Add to Chrome — it’s free Add to Firefox — it’s free Add to Firefox Add to Chrome

Also switching from Workona , Session Buddy , Pocket , Toby .