ShareAccount - Share your account without giving out your password
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
FlapIt - A physical counter for all your social accounts
SuperTokens - Open Source User Authentication - An Alternative to Auth0 / Firebase Auth / AWS Cognito
Smiirl Counter - An real-time counter of your Twitter, FB, or IG following
Burner Mail - One-click burner email addresses that you can use when signing up on websites to protect your identity and prevent your personal email address from being sold or spammed.