Top 20 open-source products relevant to Email Marketing

EngageBay is an affordable all-in-one marketing, sales CRM and service helpdesk software for growing companies to acquire, engage and nurture web visitors to happy customers.

Open Source freemium

Smart email marketing software that helps you reach your target audiences, engage in a personalized way, and grow your brand presence.

Open Source freemium $25.0 / Monthly (up to 2500 contacts, unlimited emails)

Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.

Open Source freemium $9.0 / Monthly (Plus usage-based costs. (Growth Plan). )

A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.

Open Source

Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.

Open Source free

Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.

Open Source

Deliver your app and website emails on time and to the inbox. Trusted to send 25% of the world's non-spam email. Email delivery for companies big and small.

Open Source

Open-source subtractive-hybrid synthesizer formerly sold commercially as Vember Audio Surge.

Open Source

Opteo searches for statistically significant patterns in an account and creates "optimization tasks" to improve account performance.

Open Source

Self-hosted open-source Mailchimp clone.

Open Source

Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.

Open Source

MoonMail is the easiest email marketing platform. Create, design and analyze your Email Marketing campaigns in a minute.

Open Source

Clearout Email Finder & Email Verification Service - Drive sustainable business growth by expanding your reach, lowering hard bounces, and improving deliverability rates. .

Open Source freemium $21.0 (3000 Credits)

The open source framework for responsive emails.

Open Source

Leading Bulk SMS service provider offers transactional & promotional bulk SMS solutions to enterprises via powerful & robust API.

Open Source freemium

A cross-platform modular synthesizer.

Open Source

2-way chat with your customers over SMS and FB Messenger.

Open Source

phpList is an email and newsletter marketing tool.

Open Source

A real time audio synthesis engine, and an object-oriented programming language specialised for...

Open Source

DigitalOcean's API-compatible alternative to Prometheus.

Open Source