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Open Source Email Marketing & Newsletter Tools using JavaScript

A curated collection of the best open source tools for creating, sending, and managing email campaigns and newsletters. using JavaScript.

Ghost

Publishing platform for blogs, newsletters, and paid memberships

  • Stars

    55,658

  • Last commit

    8 hours ago

  • License

    MIT
Publish content, send email newsletters, and sell paid subscriptions from one platform. Used by independent journalists, creators, and businesses like YCombinator and Kickstarter.

Open Source Alternative to:

WordPress

Listmonk

Self-hosted newsletter and mailing list manager

  • Stars

    24,124

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres.

Open Source Alternative to:

Substack

Billion Mail

AI
Open-source mail server with unlimited sending & AI tools

  • Stars

    16,171

  • Last commit

    5 months ago

  • License

    AGPL-3.0
Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution.

Open Source Alternative to:

Resend

Plunk

The open-source, affordable email platform

  • Stars

    5,573

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.

Open Source Alternative to:

Resend

useSend

Pay per email sent, not for contact storage

  • Stars

    4,775

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.

Open Source Alternative to:

Resend

Notifuse

Self-hosted email platform with visual editor & analytics

  • Stars

    2,272

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

Open Source Alternative to:

Resend

MailCheap

Open-source newsletter app billed by emails sent

  • Stars

    Stars growing quickly over the last 30 days1,597

  • Last commit

    18 hours ago

  • License

    AGPL-3.0
Newsletter platform billed by emails sent, not list size, with scheduling, a public website, AI agent access and deliverability tools from $19 a month.

Open Source Alternative to:

Substack

Keila

Open-source email marketing for the privacy-conscious

  • Stars

    2,259

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Self-hosted newsletter platform with powerful features, data protection, and full control over your mailing lists and campaigns.

Open Source Alternative to:

Substack

Wraps

Code-first email platform that deploys to your AWS

  • Stars

    66

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Build email templates as React components and automations in TypeScript. Deploy to your AWS account with SES integration. Marketing teams edit content without code.

Open Source Alternative to:

Resend

Hyvor Post

Privacy-first newsletter platform without tracking

  • Stars

    34

  • Last commit

    7 days ago

  • License

    AGPL-3.0
Create and send newsletters with complete privacy protection. No tracking, no data collection - just simple, clean email delivery with customizable templates and archive sites.

Open Source Alternative to:

Mailchimp
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