#1 chatwoot ★ 18.4k
Chatwoot provides a gorgeous live chat client to embed on websites, capturing and routing customer leads directly into your self-hosted CRM inbox.
language: Ruby
memory req: 2GB
difficulty: moderate
license: MIT
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Best open source CRM and messaging tools for marketing teams
Customer relationship management (CRM) software and email marketing engines are typically the most expensive SaaS tools in a company's budget. Traditional platforms charge steep prices based on your contact list size or seat count, creating a penalty for growth.
Self-hosting your marketing and CRM stacks eliminates these scalability bottlenecks. You can build contact databases of millions of subscribers and seat large teams of content editors at a flat server hosting fee. More importantly, self-hosting keeps customer lists private, complying directly with GDPR rules.
Here, we list the best open source CRM and communication tools to build your audience, send high-volume marketing mailings, and manage leads without SaaS paywalls.
Chatwoot
Chatwoot provides a gorgeous live chat client to embed on websites, capturing and routing customer leads directly into your self-hosted CRM inbox.
selection criteria: how we picked
Our assessment is based on:
- Audience Scale Support: Ability to process large subscriber groups without performance degradation.
- User Control: Freedom to manage lists and logs locally.
- Deliverability Options: Support for SMTP, Amazon SES, and customized tracking.
- Custom Integrations: REST APIs or webhooks to capture leads.
ranked recommendations
#2 listmonk ★ 14.8k
Listmonk is a ultra-fast newsletter engine. It handles millions of emails utilizing direct Amazon SES integrations, avoiding high newsletter SaaS tier costs.
language: Go
memory req: 512MB
difficulty: easy
license: AGPL-3.0
#3 mautic ★ 6.5k
Mautic is the complete marketing automation solution, tracking web traffic, segmenting contacts, and triggering automated email drip campaigns.
language: PHP
memory req: 4GB
difficulty: advanced
license: GPL-3.0
#4 directus ★ 25.1k
Directus acts as a headless customer database, allowing you to custom-model your CRM fields and build custom admin tables.
language: TypeScript
memory req: 1GB
difficulty: moderate
license: BSL-1.1
#5 ghost ★ 45.2k
Ghost is the premier content publishing platform, integrating SEO-optimized blogging, subscriber signup gates, and email newsletters into one elegant portal.
language: JavaScript
memory req: 1GB
difficulty: moderate
license: MIT