Comparison

OneTab vs TabSill: a list of links, or your windows as they were

OneTab is the best-known tab saver on Chrome (around 2,000,000 users, 4.4 stars from about 14,600 ratings). One click collapses your open tabs into a list, which frees memory, and the list stays on your computer. It is free, needs no account, and has added optional encrypted sync.

TabSill solves a different problem: getting back exactly the windows you had — groups, colours, pinned tabs — and never losing them, even if you forgot to click anything. If you use OneTab and like it, here is what changes if you switch, and what doesn’t.

Side by side

	OneTab	TabSill
Price	Free	Free, no limits · Pro €19 once
Account	None	None
Where your data lives	Your browser (optional encrypted sync)	Your browser only
Sync between computers	Optional	No — export a file to move it
Main idea	Collapse tabs into a list to save memory	Save and restore whole windows as sessions
Tab groups (names, colours) and pinned tabs	Not listed among its features	Restored as they were
Automatic snapshots of everything open	No — you click to save	Every 5 min (configurable)
Deleted lists	Gone	30 days in the trash
Share a list as a web page	Yes	No
If you uninstall the extension	OneTab warns the browser deletes your stored tabs	Same for TabSill’s browser storage — but an optional weekly backup file in your Downloads folder survives
Import from the other one	—	Paste OneTab’s export

OneTab figures as shown on the Chrome Web Store on 5 October 2026 (updated 21 September 2026); features as described on one-tab.com. They change. OneTab is a trademark of its owner; we are not affiliated.

When OneTab is the better choice

If what you want is to close fifty tabs in one click and get the memory back, with a simple list to reopen later, OneTab does exactly that and has done it well for years. If you need the same lists on two computers, or want to share a list as a web page, OneTab has it and TabSill doesn’t.

When TabSill is the better choice

If you work with tab groups and want them back with their names and colours; if you want a safety net that saves everything open every few minutes without you clicking; if you’d like deleted sessions to wait in a trash and a backup file on disk that outlives the extension.

Moving over in two clicks

In OneTab open Export / Import URLs and copy the text into a .txt file. In TabSill’s manager click Import… and pick the file: each OneTab block becomes a session. You can keep both installed. Details on the migration page.

Add TabSill to Chrome — free See TabSill pricing