OneTab earned its install base honestly. Click the icon, every tab folds into one list, memory comes back, and the page you were on is still reachable. Nothing about that has broken — v2.14 shipped in March 2026 and the core loop works the way it always has.
Two things have changed since this post first went up, and they change the premise. OneTab restores all your tabs at once and organizes saves into groups and folders you can reorder and search — it is not the flat dump it started as. And it now sells encrypted Backup & Sync, which carries those folders between your devices and between Chrome, Firefox, and Edge. If you came here because you'd read that OneTab can't sync, that's no longer true, and you may not need an alternative at all.
Two things haven't changed. Sync is the paid tier, so the free extension still keeps everything in local browser storage — and that local copy is what OneTab's own guidance warns about: don't uninstall and reinstall to force an upgrade, because the data in that browser profile doesn't survive it, and a Chrome profile reset does the same. So the honest reasons to look elsewhere in 2026 are narrower than they were: you want sync without a subscription, you want more than links and notes saved with your tabs, or you need browsers and devices OneTab doesn't reach.
Quick comparison
| Tool | Where data lives | Cross-device restore | Browsers | Notes / voice | Price |
|---|---|---|---|---|---|
| Blackmount | Cloud (offline Guest Mode) | Yes | 6 browsers + iPhone | Both | Free / $0.99 mo |
| Tab Session Manager | Local (+ your Drive) | Manual export | Chrome, Firefox | No | Free (open source) |
| Session Buddy | Local | No | Chrome (official) | No | Currently free |
| Workona | Cloud | Yes | Chromium, Firefox | Docs, not voice | Free / paid tiers |
| OneTab | Local; cloud on paid plan | Paid add-on | Chrome, Firefox, Edge | Notes, not voice | Free; sync by subscription |
What actually matters in a replacement
Feature lists are easy to pad, so narrow it to four questions. Does the tool keep a copy of your sessions somewhere other than one browser profile? Can you save on the desktop and restore on the laptop or phone without hand-carrying an export file? Does it save anything beyond the bare URLs, so you can tell six months later why those tabs were open together? And can you find a specific session in an archive of hundreds without scrolling a chronological list?
OneTab answers yes to all four now, with one asterisk and one limit. The asterisk is that the first two — a copy outside your browser profile, and restore on the other machine — come with the paid Backup & Sync subscription rather than the free extension. The limit is depth: folders, search, and notes are real, but nothing carries a voice note or the AI conversation that produced the tabs. Add a fifth question if it applies to you — does it run everywhere you work, phone included — and that's where the tools below start to separate.
Top pick: Blackmount (that's us)
Blackmount saves an entire window in one click and syncs it to Chrome, Firefox, Edge, Brave, Vivaldi, Opera, and iPhone — three more browsers than OneTab reaches, plus a phone. Sync is included in the free account within storage limits, so cross-device restore isn't behind a subscription. Reinstalling the extension, resetting a profile, or moving to a new laptop doesn't touch the archive, because the archive isn't stored in the browser.
Sessions also carry more than OneTab's folders and notes can: attach a voice note while you save, and it stays with the session and stays searchable. Blackmount also captures AI chats from ChatGPT, Claude, Gemini and others into the same archive, which is increasingly where the research actually happened. If cross-machine restore is the specific thing you're after, we walk through it in save tabs on one computer, open them on another.
The trade-offs, plainly: OneTab is instant and requires nothing of you, while Blackmount asks for an account before sync works — Guest Mode runs fully offline with no account if you'd rather stay local. Unlimited sync is $0.99/month. We don't save page state (scroll position, form contents, expanded threads), a browser security limit every extension here shares. And we're a session tool, not a bookmark manager: if you want tagged individual links with full-text page search, Raindrop.io fits better.
For a free, open-source replacement: Tab Session Manager
Tab Session Manager is the closest thing to a straight upgrade from OneTab at zero cost. It saves real named sessions instead of URL dumps, auto-saves on an interval so you're not relying on memory, runs on Chrome and Firefox, and exports to JSON, Markdown, CSV, or HTML. It can push sessions through your own Google Drive.
It's still local-first: the Drive channel is a backup you pull on each machine rather than live sync, and there's no phone story. Its case in 2026 is price — if your objection to OneTab is being asked to subscribe for Backup & Sync, this gives you named sessions, auto-save, and a backup channel you own, for nothing.
For richer local Chrome sessions: Session Buddy
Session Buddy is the usual next stop for OneTab users, with about a million of them. It manages full sessions rather than lists, has a much better interface for browsing what you saved, and includes crash-recovery auto-save. Be clear about what it does not change: as of v4.1.2 in April 2026 Chrome is the officially supported browser and cloud sync hasn't shipped at all — where OneTab at least sells you a sync subscription, here there is nothing to buy, so you stay on one machine. We covered the switching paths in our Session Buddy alternatives guide.
Export your OneTab lists before you change anything
Whatever you switch to, do this first. Open the OneTab page from the toolbar icon, click "Export / Import URLs" near the top, select everything in the export box, and paste it into a text file you save outside the browser. If you subscribe to OneTab's Backup & Sync you have a second copy already, but an export you hold yourself is insurance against both tools, and it takes under a minute.
Only after that export exists should you install anything new, and only after you've confirmed the imported sessions look right should you remove OneTab. The uninstall itself is the documented data-loss moment, so leaving OneTab installed and idle for a week costs nothing while you verify the new tool.
The short version
- Want voice notes and captured AI chats saved with your tabs, across six browsers and your phone, with sync in the free tier → Blackmount.
- Want free and open source, and won't pay a subscription for sync → Tab Session Manager, with your own Google Drive as the backup channel.
- Want proper Chrome session management with crash recovery → Session Buddy.
- Live in project workspaces with a team → Workona.
- Happy in Chrome, Firefox, or Edge and willing to subscribe → stay on OneTab and buy Backup & Sync. Export monthly anyway.
Spotted an inaccuracy, or a tool we should add? Email support@blackmount.ai — we update this post as tools ship new versions.