Save your logins
Coauth offers to save passwords as you sign in, generates strong ones, and stores passkeys — all in one encrypted vault.
Chrome Extension · Password + passkey manager
Passwords and passkeys.
Shared, encrypted.
Coauth saves and autofills your logins, generates strong passwords, and stores passkeys — then lets your whole team share any login, end-to-end encrypted. The server can never read it.
Add to Chrome →Zero-knowledge · end-to-end encrypted · no ads, no tracking
No account needed to start. Install, save and autofill your logins, and sign in only when you want to sync across devices or share with your team.
Acme Ops · team vault3 members
01shared
app.company.com
ops@acme.co
02shared
admin.vendor.com
billing@acme.co
03shared
dashboard.analytics.io
team@acme.co
3 shared passkeys · every member signs in with the same key
The Problem
Shared logins are a mess.
Teams share accounts, a shared inbox, an admin panel, a vendor dashboard, but passwords get pasted into chat, and passkeys live on one person's device and can't be handed over. Coauth gives the whole team one encrypted vault to use them from.
How It Works
Save it, share it, sign in.
Share into a team
Pick a login and share it with a team. It is re-encrypted to each member — the secret never leaves your control.
Everyone signs in
Teammates autofill the shared password or use the shared passkey from their own browser. Nothing pasted, nothing exposed.
See it work
Share one login in under two minutes.
Features
Made for shared logins, not solo vaults.
01
Passwords + passkeys, one vault
Save logins as you sign in, autofill them on your next visit, and generate strong passwords. Passkeys too — created through Coauth so they can be shared.
02
Built for sharing
Share any login — a password or a passkey — into a team. Everyone uses it from their own browser, with invites, roles, and a shared vault.
03
Real revocation
Remove a member and the team key rotates automatically. Their access ends for real — not on the honor system, not "please stop using it."
04
Zero-knowledge
Your vault is locked with your device passkey plus a recovery key only you hold. End-to-end encrypted (libsodium) before it syncs — the Coauth servers only ever store ciphertext, personal and shared.
05
Nothing to pass around
No exported password in a chat thread. No shared spreadsheet of logins. The credential itself moves, encrypted, to the people you choose.
06
Autofill where you work
Click the Coauth suggestion on a login field and it fills your username and password. Passkeys work on any site that supports them.
How it compares
Why teams pick Coauth for one shared login.
| Coauth | 1Password | Bitwarden | Buy a seat each | |
|---|---|---|---|---|
| Free to start, no account | Yes | No | Limited | No |
| Single purpose, no suite to deploy | Yes | No | No | — |
| Share one login with a team | Yes | Yes | Yes | Not sharing |
| Removing a member rotates the key | Yes | Removes access | Removes access | Yes |
| No per-seat cost to share | Yes | No | No | No |
| Zero-knowledge encryption | Yes | Yes | Yes | — |
Competitor details from public information. Coauth is free for a team of three and a flat price beyond that; 1Password and Bitwarden are full suites priced per seat.
Full comparisons: vs 1Password · vs Bitwarden · vs Keeper · vs Dashlane · vs LastPass · vs Proton Pass
Pricing
One flat price, not a seat for everyone.
Free covers you and a team of three. The fourth teammate is the only thing behind the paywall, and after that you can add as many people as you like without the price moving.
FreeYou and a small team
$0
- Full personal vault: passwords and passkeys
- Autofill, password generator, health scan
- 1 team, up to 3 members
- Zero-knowledge, end-to-end encrypted
No account needed to start.
ProWhen your team passes three
$5/month
Billed monthly.
- Unlimited teams and members
- Admin roles
- Built-in authenticator for 2FA codes
- Breach check against known data breaches
- Everything in Free
Founding price. It stays this price for as long as you stay subscribed.
Install free, then upgrade from inside the extension whenever you need it. Cancel any time from the billing portal.
Per-seat suites charge again for every person you add. See the maths: vs Proton Pass · vs 1Password · vs Bitwarden
Straight Talk
What Coauth is — and isn't.
Coauth can only share passkeys it creates; an existing device or security-key passkey can't be exported (that's the point of passkeys), so you add a new one through Coauth. Only one passkey extension runs at a time, so Coauth has a one-click Pause when you need your device's own passkeys. And it's zero-knowledge: your vault is locked with your device passkey and a recovery key only you hold — the Coauth servers never see a key that can open it.
FAQ
Common questions.
Is it a password manager?
Yes — Coauth saves, autofills, and generates passwords, and stores passkeys. What makes it different is sharing: any login can be shared with a team, end-to-end encrypted, with roles and real revocation.
Can Coauth share a passkey I already have?
No — a passkey registered with your fingerprint or a security key can never be exported. That is the security model of passkeys. To share one, add a new passkey to that account through Coauth, and Coauth shares that. Passwords have no such limit.
How do I revoke someone?
Remove them from the team. Coauth rotates the team key so any copy they had can no longer decrypt the shared logins.
Do I need an account to use it?
No. Install Coauth and use it locally right away — save and autofill your logins with no sign-up. You only sign in with Google when you want to sync across your devices or share a login with a team.
How is it different from 1Password or Bitwarden?
Those are full password suites you roll out and pay for per seat. Coauth does one thing well, sharing a single login with a team, free for up to three people and then one flat price rather than a charge per seat, with no account to start and a clean revoke that rotates the key. If you need company-wide password management with SSO and policies, a full suite fits better.
Is it safe to store logins in a browser extension?
Coauth is zero-knowledge: everything secret is encrypted on your device before it syncs, so the server only ever holds ciphertext and can never read your passwords or passkeys. Removing a member rotates the key, and backups run nightly. A breach of the backend exposes nothing usable.
Does it work alongside 1Password or Proton Pass?
Only one passkey extension can be active in the browser at a time. Coauth has a one-click Pause to hand passkey control back to another authenticator when you need it.
What does it cost?
Free to install, and free to share one login with a team of up to three. Pro is $5 a month, or $49 a year, and lifts the limit to unlimited teams and members. It is one flat price whatever the size of your team, not a per-seat charge.
Give your team one login they can all use.
Live on the Chrome Web Store. Free to install, free for a team of three.