01
Download Extension
Save the Nythera extension package to your computer.
Secure setup
Install Nythera Extension
Secrets are encrypted and recovered through the local browser extension.
Installation path
A quick setup before your first vault.
02
Open chrome://extensions
Open Chrome extensions in a new tab to install Nythera manually.
03
Enable Developer Mode
Turn on Developer Mode in the top-right corner of the extensions page.
04
Load Unpacked Extension
Unzip the download, click Load Unpacked, and select the extracted Nythera folder.
05
Return To Nythera
Come back here and confirm the extension is ready before creating your first vault.
What this enables
Nythera stays out of your secrets.
The website manages vaults and recovery status. The extension handles secret entry, encryption, and secure recovery display.
Local secret entry
Type sensitive content inside the extension.
Extension recovery
Recovered content opens outside the website.
Automatic clearing
Recovery sessions clear themselves after a short window.