Hivesigner docs
Hivesigner is a signer for the Hive blockchain. You use it at hivesigner.com, with nothing to install. It keeps your Hive keys in your own browser, shows you in plain words what you are about to sign and lets apps ask for only the access they need. Apps that use it never receive your keys.
Where to start
New to Hivesigner? Start with Add and manage accounts. It shows how to add your Hive account, which key to add and how to protect it with a passcode. Then read Keep your keys safe.
Did an app send you to Hivesigner to sign in? Sign in to apps explains the screen you see, what the app can do afterwards and how to remove its access.
Building an app? Start with How Hivesigner works. It explains the two parts of Hivesigner and how your app uses each.