Secure Login.
Open Source.
Security that belongs to you.
Your Credentials. Your Hardware. Build Digital Sovereignty.
The open source FIDO2 security key. Built with Trussed®.
Open Source
Hardware
Mozilla MOSS
Foundational Technology Award
Passwords Are Broken.
There's A Better Way.
Passkeys are replacing passwords across the web. Solo 2 supports the passkey standard — except yours stays on your key. Not their cloud.
No more sticky notes. No more forgotten passwords. No more texts with six digit codes. Solo 2 works for everyone — from first time users to security professionals to enterprise teams.
One key. Every account. Build Digital Sovereignty.
Your Passkeys. Your Device.
Your credentials and passkeys live on your key. Never uploaded. Never backed up to any cloud. Yours completely.
Open Source. Nothing Hidden.
Hardware and firmware fully open. Every circuit, every line of code available for anyone to review, audit and verify.
Always Current. Never Obsolete.
Firmware updates keep your Solo 2 current with the latest security standards. One purchase. Long term protection. Built to last — not built to be replaced.
Built with Trussed®
A modern open source firmware framework. The secure foundation that gives you confidence in what's running on your key.
How It Works
Three simple steps to secure login.
1. Plug In
Insert your Solo 2 into any USB port. No software or drivers required.
2. Touch
When prompted, touch the capacitive sensor on your Solo 2 to confirm.
3. You're In
Instantly authenticated. No passwords typed. No codes to enter.
* Requires a website or service that supports FIDO2 or WebAuthn authentication. See compatible services.
Nothing Hidden.
We mean that literally.
Every circuit, every component, every design decision in Solo 2 is publicly available. Our hardware schematics are open for anyone to review, audit, and verify. No black boxes. No hidden chips. No secrets.
Solo 2 hardware is licensed under CERN-OHL-S. All schematics publicly available on GitHub.
View Hardware On GitHub
For Developers & Makers
Solo 2 Hacker
The Solo 2 Hacker is a development device that puts full control in your hands. Flash custom firmware, build FIDO2 applications, and experiment with Trussed® — all on the same open source hardware platform.
Works as a standard security key out of the box. Built for those who want to go deeper.
Shop Hacker Learn MoreWhat People Are Saying
★★★★★
"This just works straight out of the box... this is really an open source solution that provides the capability for you to be able to hack around with these dongles."
MickMake
★★★★★
"Most popular security keys, like the Yubikey, are closed sourced which limit their usefulness for hackers like myself. With SoloKeys, an open sourced alternative, tinkers are free to run wild."
Hackster News
★★★★★
"The guys making the SoloKeys are doing a great job. For an open source project, they're doing excellently. They were easy to get into contact with on Github when I needed help and are receptive to suggestions."
Roy Natian
Stay In The Loop
New products, firmware updates, and security news from SoloKeys.