Keila vs Plunk

Comparing two open source alternatives to Mailchimp and Klaviyo and Campaign Monitor. Use the comparison below to decide which one fits your needs.

Keila

AGPL-3.0

Keila is the open-source newsletter and email campaign tool — a friendly Mailchimp alternative for beautiful campaigns, sign-up forms, and contact lists.

Visit Full details

Plunk

AGPL-3.0

Open-source email platform for sending transactional and marketing emails, self-hostable with a clean API.

Visit Full details

Side-by-side comparison

	Keila	Plunk
License	AGPL-3.0	AGPL-3.0
Self-hostable	Yes	Yes
GitHub Stars	2,191	5,388
Forks	167	397
Open Issues	80	41
Last Commit	Aug 18, 2026	Aug 24, 2026
First Released	Jan 1, 2021	Jul 12, 2024
Categories	Email Marketing & Newsletters Tools	Email Marketing & Newsletters Tools
Tags	#newsletter #email marketing #marketing	#email marketing #newsletter #automation #email notifications

GitHub stars over time

Keila2,191

Plunk

Similar open source alternatives

Krayin CRM

A free and open-source Laravel CRM for SMEs and enterprises with full customer lifecycle management.

Alternative to:

HubSpot

Relaticle

Open-source CRM with native AI agent support, 30 MCP tools, REST API, and self-hosting capabilities.

Alternative to:

Salesforce

Frappe CRM

A modern, open-source CRM by the Frappe team, built for sales teams to manage leads and deals efficiently.

Alternative to:

HubSpot

Dolibarr

A free and open-source ERP and CRM platform for businesses, foundations, and freelancers of any size.

Alternative to:

Salesforce

EspoCRM

Open source CRM platform for managing contacts, leads, sales pipelines, and customer relationships.

Alternative to:

Salesforce

Mautic

Open-source marketing automation platform with email campaigns, lead management, and multi-channel marketing.

Alternative to:

HubSpot