Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Mailshake - Mailshake lets you build your professional network through a smart and intuitive approach to cold emailing.
MJML - The open source framework for responsive emails
Swifter - Email subject line generator for B2B & B2C, built with GPT-3
Stripo - Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.
Cold Email Analyzer by Mailshake - Real-time analysis of email subject lines and copy