Gmail Unsubscriber - Open source alternative to Unroll.me for Gmail
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
Trimbox - One-click unsubscribe for mailing lists, straight from Gmail
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
Leave Me Alone - Easily unsubscribe from unwanted emails 💌
Nylas Mail - The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.