# 6 Best Open Source Alternatives for Sendy

Canonical: https://caniforkit.com/sendy
Last updated: 2026-11-07

Looking for the best open source alternative for Sendy? Compare 6 verified free and open source alternatives to Sendy (Listmonk, Plunk, useSend) with license details, self-hosting requirements, and practical trade-offs.

## Sendy Overview & Subscription Cost
- **Product**: Sendy
- **Category**: [seo & marketing](https://caniforkit.com/category/seo-marketing)
- **Paid Subscription Price**: $49/month per seat
- **1-Seat Annualized Cost**: $588/year
- **5-Person Team Annualized Cost**: $2,940/year
- **10-Person Team Annualized Cost**: $5,880/year
- **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens)
- **Rebuild Verdict**: Instead of paying recurring SaaS fees for Sendy or rebuilding it from scratch, deploy one of the 6 battle-tested open-source alternatives like Listmonk.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [Listmonk](https://caniforkit.com/fork/listmonk) | Open Source | AGPL-3.0 | Self-host | ★ 24.2k | [Compare vs Sendy](https://caniforkit.com/vs/sendy-vs-listmonk) |
| [Plunk](https://caniforkit.com/fork/plunk) | Open Source | AGPL-3.0 | Self-host | ★ 5.6k | [Compare vs Sendy](https://caniforkit.com/vs/sendy-vs-plunk) |
| [useSend](https://caniforkit.com/fork/usesend) | Open Source | Open Source | Self-host | ★ 4.8k | [Compare vs Sendy](https://caniforkit.com/vs/sendy-vs-usesend) |
| [MailCheap](https://caniforkit.com/fork/mailcheap) | Open Source | Open Source | Self-host | ★ 1.7k | [Compare vs Sendy](https://caniforkit.com/vs/sendy-vs-mailcheap) |
| [Sendportal](https://caniforkit.com/fork/sendportal) | Open Source | Open Source | Self-host | ★ 2.2k | [Compare vs Sendy](https://caniforkit.com/vs/sendy-vs-sendportal) |
| [Keila](https://caniforkit.com/fork/keila) | Open Source | AGPL-3.0+ | Self-host | ★ 2.3k | [Compare vs Sendy](https://caniforkit.com/vs/sendy-vs-keila) |

## In-Depth Alternative Profiles

### Listmonk
- **Fork Page**: [Listmonk Profile](https://caniforkit.com/fork/listmonk)
- **Head-to-Head Comparison**: [Sendy vs Listmonk](https://caniforkit.com/vs/sendy-vs-listmonk)
- **Official Website**: https://listmonk.app/
- **Source Code Repository**: https://github.com/knadh/listmonk
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 24.2k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres.
- **The Catch vs Sendy**: listmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.
- **Installation**: Docker Compose or a single release binary plus PostgreSQL
- **Setup**: You still need a PostgreSQL database and a trustworthy SMTP/API sender with authenticated DNS.
- **Data Storage**: Subscribers, campaigns, templates, and analytics live in a PostgreSQL database on your server.

### Plunk
- **Fork Page**: [Plunk Profile](https://caniforkit.com/fork/plunk)
- **Head-to-Head Comparison**: [Sendy vs Plunk](https://caniforkit.com/vs/sendy-vs-plunk)
- **Official Website**: https://useplunk.com
- **Source Code Repository**: https://github.com/useplunk/plunk
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 5.6k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.
- **The Catch vs Sendy**: Plunk is developer-first and much thinner in visual audience management, CRM depth, segmentation tooling, and marketer-oriented reporting.
- **Installation**: Hosted signup, or the official Docker Compose stack
- **Setup**: Hosted use still needs domain authentication; self-hosting adds PostgreSQL, Redis, MinIO, Nginx or another proxy, exposed web and SMTP services, DNS, and ongoing deliverability work.
- **Data Storage**: The self-hosted stack stores core data in PostgreSQL, jobs and cache in Redis, and objects in MinIO; hosted data is kept in Plunk's EU infrastructure.

### useSend
- **Fork Page**: [useSend Profile](https://caniforkit.com/fork/usesend)
- **Head-to-Head Comparison**: [Sendy vs useSend](https://caniforkit.com/vs/sendy-vs-usesend)
- **Official Website**: https://usesend.com
- **Source Code Repository**: https://github.com/usesend/usesend
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 4.8k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.
- **The Catch vs Sendy**: Requires self-hosting setup, updates, and server maintenance compared to managed Sendy.
- **Installation**: Clone https://github.com/usesend/usesend or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### MailCheap
- **Fork Page**: [MailCheap Profile](https://caniforkit.com/fork/mailcheap)
- **Head-to-Head Comparison**: [Sendy vs MailCheap](https://caniforkit.com/vs/sendy-vs-mailcheap)
- **Official Website**: https://mailcheap.ai/
- **Source Code Repository**: https://github.com/marclou/mailcheap
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 1.7k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Newsletter platform billed by emails sent, not list size, with scheduling, a public website, AI agent access and deliverability tools from $19 a month.
- **The Catch vs Sendy**: Requires self-hosting setup, updates, and server maintenance compared to managed Sendy.
- **Installation**: Clone https://github.com/marclou/mailcheap or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Sendportal
- **Fork Page**: [Sendportal Profile](https://caniforkit.com/fork/sendportal)
- **Head-to-Head Comparison**: [Sendy vs Sendportal](https://caniforkit.com/vs/sendy-vs-sendportal)
- **Official Website**: https://sendportal.io
- **Source Code Repository**: https://github.com/mettle/sendportal
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 2.2k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open-source email marketing platform offering unlimited subscribers, campaigns, and workspaces. Self-hosted solution with powerful API and beautiful interface.
- **The Catch vs Sendy**: Requires self-hosting setup, updates, and server maintenance compared to managed Sendy.
- **Installation**: Clone https://github.com/mettle/sendportal or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Keila
- **Fork Page**: [Keila Profile](https://caniforkit.com/fork/keila)
- **Head-to-Head Comparison**: [Sendy vs Keila](https://caniforkit.com/vs/sendy-vs-keila)
- **Official Website**: https://keila.io
- **Source Code Repository**: https://github.com/pentacent/keila
- **License**: AGPL-3.0+
- **Runs On**: Self-host
- **GitHub Stars**: 2.3k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Self-hosted newsletter platform with powerful features, data protection, and full control over your mailing lists and campaigns.
- **The Catch vs Sendy**: Keila gives you a friendly campaign editor and tracking, but delivery reputation, SMTP configuration, backups, and upgrades become your responsibility rather than Campaign Monitor's.
- **Installation**: Keila Cloud signup or Docker image plus PostgreSQL
- **Setup**: Self-hosting requires Docker, PostgreSQL, a public HTTPS domain, and credentials for SMTP, SES, SendGrid, Mailgun, or Postmark.
- **Data Storage**: Self-hosted subscribers, campaigns, and job state live in PostgreSQL; uploaded campaign assets live on persistent server storage.

## Frequently Asked Questions

### What is the best free alternative to Sendy?
The top free alternative to Sendy is Listmonk (open source, AGPL-3.0). Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres. Other popular Sendy replacements include Plunk, useSend, MailCheap.

### How much does switching from Sendy to a free alternative save?
Sendy starts at $49/month per seat ($588/year). Switching a 5-person team to a free alternative like Listmonk saves $2,940 per year in software subscription fees.

### What is the catch when switching away from Sendy?
While Listmonk replaces core Sendy features without subscription fees, the real-world trade-off is: listmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.

## Related

- [seo & marketing Software Category Hub](https://caniforkit.com/category/seo-marketing)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Self-Hosted Software Directory](https://caniforkit.com/self-hosted)
- [Homepage](https://caniforkit.com)