Keyspace is a secure self-custodial cryptographic wallet browser add-on developed by Keyspace. It is designed to provide users with a safe and convenient way to manage their digital life.

With Keyspace, users can backup and save passwords, two-factor authentication codes, and even take notes with Markdown support. The add-on also allows users to store their credit and debit cards for later use. One of the standout features of Keyspace is the seamless login functionality from the Keyspace mobile app using a QR code scan.

Security is a top priority for Keyspace, and the add-on utilizes zero-knowledge encryption. This means that the user's vault is encrypted with a key that never leaves their device, ensuring their data remains private and secure. The add-on also employs strong and fast cryptography, using XChaCha20-Poly1305 with a 192-bit nonce for encryption and Ed25519 to authenticate with servers.

In terms of privacy, Keyspace does not make any third-party analytics, crashlytics, or information-leaking API calls. Even the icons used in the add-on are fetched locally, further enhancing user privacy.

Keyspace is a free add-on available on the Chrome platform, making it accessible to a wide range of users. It falls under the category of browsers and specifically the subcategory of add-ons and tools. Whether you need a secure way to manage your passwords, store important information, or securely access your credit and debit cards, Keyspace provides a comprehensive solution with a focus on privacy and security.