Local-only · private by design

Your 2FA codes,
fetched for you.

Otto spots when you are signing in, grabs the verification code from your Gmail, and types it into the page. No copy-paste, no tab switching — and nothing ever leaves your browser.

See it in action
0 servers
~3s to autofill
100% on-device

No backend

Talks straight to Gmail

No tracking

Nothing is logged

You stay in control

Revoke anytime

Free

No accounts, no fees

Four steps, zero effort

From login screen to filled-in code, while Otto does the running around.

01

Detects the login

Otto notices the code box the moment it appears.

02

Checks your inbox

A quick peek at just the email that arrived.

03

Finds the code

Reads the code and ignores everything else.

04

Fills it in

Types it into the box — you press sign in.

Try it yourself

Paste any verification email below. Otto finds the code instantly — right here in your browser.

Otto found

739204

This is the code it would fill in for you.

Yours to tune

Turn on what you like. Otto can fill codes automatically, open itself when one is on the way, and even tidy the email into Trash after reading it — but only after you say yes.

  • Auto-fill straight into the page
  • Pops open the moment a code lands
  • Always grabs the newest code on a resend
  • Optional inbox tidy-up (recoverable for 30 days)

Is Otto safe to use?

Short answer: yes. Here is exactly why.

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