open source email development tool - AI tools

HEML is an open source markup language for building responsive emails, offering native HTML power without email quirks to simplify email development.

• Free

Mailing is an open-source AI-powered tool that enables developers to create, preview, and send responsive emails using React and MJML, with features like hot reload and transport-agnostic sending.

• Freemium

Plunk is an open-source email platform that combines marketing, transactional, and broadcast emails into a single, affordable solution with transparent pricing and EU-based data privacy.

• Freemium

MailDeveloper is an advanced email template editor that reduces development time by hours, offering drag-and-drop UI, custom HTML/JavaScript, and export-ready HTML without tracking.

• Freemium
• From 60$

Volamail simplifies email template creation and sending. It uses AI to assist with writing and editing, and allows sending emails via a simple API call.

• Freemium
• From 19$

Cuttlefish is an open-source transactional email service that ensures email delivery, provides real-time analytics, and maintains email reputation through bounce handling.

• Free

Mailtrap provides comprehensive email testing and delivery solutions with an Email Sandbox for debugging and an Email API/SMTP service for reliable sending, trusted by over 150,000 monthly active users.

• Freemium
• From 14$

Emailit is a pay-per-use email delivery platform that enables developers and marketers to send transactional and marketing emails with lightning-fast delivery, comprehensive tracking, and easy integration via API or SMTP.

• Usage Based

MJML is an open-source framework designed to simplify responsive email creation through semantic, component-based markup that automatically generates robust, cross-client HTML.

• Free

mailmerge-js is an open-source package and command-line tool for drafting and sending personalized, templated emails directly from your Gmail inbox, streamlining email automation.

• Other

Emailkick is an AI-powered email design and delivery platform that simplifies creating responsive email templates and sending transactional emails through AWS SES with minimal coding.

• Freemium
• From 10$

Mailcatch is an advanced email and SMTP testing tool designed for developers to efficiently organize, validate, and share test emails within projects and teams.

• Freemium
• From 15$

Sendses is an AI-powered email service designed for developers, offering affordable metered pricing and simple integration with tools like JavaScript, Python, and cURL.

• Usage Based

Ethereal is a free fake SMTP service designed for safely testing email sending and delivery using SMTP, IMAP, and POP3 without actually delivering messages.

• Free

Sidemail is a robust SaaS email platform designed for seamless transactional, marketing, and automated emailing, featuring a no-code editor, flexible API, and advanced subscriber management for businesses and developers.

• Free Trial
• From 19$

Maizzle is a framework for developing HTML email templates using Tailwind CSS and advanced email optimizations, streamlining email development workflows.

• Free

Sidemail streamlines email communications for side projects by offering unlimited inboxes and seamless integration with your existing email account, while keeping your personal email private.

• Freemium
• From 2$

EmailCanvasAi helps users create stunning, responsive emails in minutes, with options for building from scratch or customizing pre-made templates.

• Freemium
• From 15$

Spotent is an AI-powered email template management platform that generates clean HTML for seamless integration with any email service provider, enabling teams to create and update transactional emails visually without code changes.

• Freemium
• From 10$

TOPOL.io is a user-friendly, drag-and-drop email template builder designed for creating responsive and professional emails without coding skills, featuring AI assistance.

• Freemium
• From 15$

EDMdesigner is a drag-and-drop responsive email editor that generates bulletproof HTML code compatible with over 90% of email clients, eliminating the need for manual coding.

• Contact for Pricing

Mail-in-a-Box is an open-source solution that transforms a fresh cloud computer into a fully functional, self-hosted mail server with webmail, contacts, calendar synchronization, and automated security features.

• Free

YMOZ is an open-source email service that provides secure, private email hosting powered by 100% renewable energy from Finland, featuring custom domain support, encryption, and synchronization capabilities.

• Free

MailSend is an email marketing platform within the 500apps suite, designed to help businesses create, send, and automate email campaigns and newsletters with tools like a drag-and-drop builder and drip campaigns.

• Free Trial
• From 15$

MailMug is an email sandbox tool that helps developers and QA teams test and debug emails in staging, development, and QA environments before sending to production recipients.

• Freemium
• From 5$

Starto Email provides a comprehensive bundle of stylish, responsive email templates and a user-friendly drag-and-drop editor, tailored for startups and businesses aiming to enhance their email marketing campaigns.

• Freemium
• From 12$

Cloudy.Email is a cloud-based email marketing platform that offers affordable bulk email sending starting at $1 for 10,000 emails, featuring unlimited contacts and lists, high deliverability through Amazon AWS infrastructure, and 24/7 live customer support.

• Freemium
• From 5$

Inboxroad is an email marketing platform that provides tools for creating, sending, and tracking email campaigns with high deliverability rates and expert support.

• Freemium
• From 68$

Paste2Email streamlines email creation by generating responsive HTML emails from existing designs or text prompts. It uses MJML for responsive design and offers easy export options.

• Usage Based

SendPortal is an open-source, self-hosted email marketing platform that enables businesses to manage newsletters and campaigns at a fraction of the cost of commercial alternatives.

• Other