Give every agenta tab of its own.

Claude Code, Codex, Cursor and sixteen more get tabs in the Chrome you’re already signed in to. They work in the background. You keep working.

Star it on GitHub

19: agents supported
0: Tabhand servers
1 click: pauses every agent

Watch them work

01 / 05 — How it works

Signed in, already
Agents use the Chrome you already use, so your email, dashboards and admin panels just work. You never hand over a password.
Chrome stays behind your work
Agent tabs open in the background, in a tab group named after the agent. Chrome never jumps in front of what you’re doing.
Your tabs are off limits
An agent can only reach the tabs it opened, and the popups those tabs open. Not yours, and not another agent’s.
One click stops every agent
Click the Tabhand icon in Chrome’s toolbar and every agent stops where it is. Click it again to let them carry on.
Files go in without a dialog
Agents attach files from your Mac, even through an upload button. No file picker pops up in front of you.

Inbox (3)Q4 planClaude CodeInvoices · AcmeCodexPR #482MailNot yours

acme billingInvoicesPayoutsTeamAPAda ParkSigned in

Invoices

September 2026$1,240.00PaidDownload
August 2026$1,180.00PaidDownload
July 2026$1,180.00PaidDownload
June 2026$1,095.00PaidDownload

Saved invoice-sep-2026.pdf to Downloads

acmePricingDocsSign in

Starter$03 seats

Team$2410 seats

Business$60SSO, audit log

Compare plans

acme / webPull requestsIssuesActions

Retry webhook deliveries #482

src/webhooks/deliver.ts

- await send(event)

+ await retry(() => send(event), { attempts: 3 })

log.info('delivered', event.id)

acme insightsOverviewReportsExport

Visitors48,210

Sign-ups1,904

Revenue$62.4k

acme expensesAPAda ParkSigned in

New expense

Add a receipt to get reimbursed.

MerchantUberAmount$86.40ReceiptChoose filePDFreceipt-sep.pdf310 KBSubmit

launch-post.md

Launch post

claude — ~/acme

> Download September’s invoice from Acme billing

⏺ tabhand · browser_open_tab

⎿ billing.acme.com/invoices, opened in the background

⏺ tabhand · browser_click “Download”

⎿ invoice-sep-2026.pdf saved to ~/Downloads

⏺ Done. September came to $1,240.00.

> Compare Acme’s Team and Business plans

⏺ tabhand · browser_snapshot

⎿ 3 plans: Starter, Team, Business

⏺ tabhand · browser_click “Compare”

⏺ Team is $24 a month for 10 seats. Business adds SSO for $60.

› Reply to the review request in my inbox

• tabhand · browser_click “Inbox (3)”

⎿ Error: Tab 12 is not one of this session’s tabs.

• tabhand · browser_open_tab

⎿ mail.acme.com, in a tab of its own

> Keep going with the dashboard export

⏺ tabhand · browser_click “Export”

⎿ Error: The user paused Tabhand in Chrome. Ask them to click the Tabhand toolbar icon to resume.

⏺ Paused. I’ll pick it up when you resume.

> File my Uber receipt as an expense

⏺ tabhand · browser_upload_file

⎿ ~/Downloads/receipt-sep.pdf → Receipt

⏺ tabhand · browser_click “Submit”

⏺ Filed: Uber, $86.40, receipt attached.

Claude Code

Codex

You

[01] Your session, already signed in

[02] Chrome stays behind. You keep the focus.

[03] Your tabs. Off limits to agents.

[04] One click, and even this painting stopped

[05] No file picker in your face

Setup — about a minute

One command. Then just ask.

1
Run setup
It installs Tabhand and adds it to every agent it finds. It asks first, and backs up any settings file it changes.
2
Turn on the extension
Setup walks you through adding it to Chrome, once. Until the Chrome Web Store listing is approved, you load it yourself in Developer mode.
3
Ask your agent
Ask for anything that needs a browser. Your agent opens a tab of its own and gets to work.

For macOS and Google Chrome. Free and open source under the MIT License.

zsh — ~

~ $ npx tabhand setup

✓ Installed in ~/.tabhand

Add Tabhand to Claude Code, Codex, Cursor? [Y/n] y

✓ Claude Code: added

✓ Codex: added

✓ Cursor: added

✓ Chrome extension connected. All set.

19 agents and counting

Works with the agents you already use.

Setup finds the agents on your Mac and asks before adding Tabhand to each one. Anything that speaks MCP can use it too.

Privacy — local by design

Nothing leaves your Mac.

There’s no Tabhand server and no account. A page goes from your Chrome to the agent that asked for it, over your own machine, and nowhere else.

: Pages go from the extension to a helper on your Mac, and from there only to the agent that asked.
: The helper talks over a Unix socket only you can read, with a fresh token each run.
: Each agent session reaches only its own tabs. Two agents can work side by side without seeing each other.
: The helper logs connects and disconnects. No URLs, no page content, nothing typed.

Questions

Asked, and answered.

Can an agent see my other tabs?

No. An agent can only reach the tabs it opened, plus tabs and popups those pages open. Your tabs, and other agents’ tabs, are invisible to it.

Will Chrome jump in front of what I’m doing?

No. Agent tabs open in the background and stay there. Tabhand keeps them rendering, so clicks, typing and screenshots work without bringing Chrome forward.

Does Tabhand see my passwords?

Agents work in the sites you’re already signed in to, so you don’t hand them a password. Tabhand doesn’t store any.

Why does Chrome say “Tabhand started debugging this browser”?

That bar is how Chrome shows that an extension can control tabs. Tabhand only attaches to tabs its agents opened. Click Cancel on it, or the Tabhand icon, to pause every agent.

Does it work on Windows or Linux?

Not yet. Tabhand works with Google Chrome on macOS for now.

Is it free?

Yes. Tabhand is free and open source under the MIT License. There’s no account and nothing to pay for.

Give every agenta tab of its own.

Signed in, already

Chrome stays behind your work

Your tabs are off limits

One click stops every agent

Files go in without a dialog

One command. Then just ask.

Run setup

Turn on the extension

Ask your agent

Works with the agents you already use.

Nothing leaves your Mac.

Asked, and answered.