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Open-source alternatives to MailerLite

MailerLite does 5 jobs: subscriber lists and segments, write and send email campaigns, automated email sequences, signup forms and landing pages, campaign analytics. Most projects replace one or two of them, so pick the job you actually need.

Quick answer

Facts checked 16 Oct 2026

We track 3 open-source alternatives to MailerLite, but none currently has confirmed commercial use, local running and no paid services together. Mautic covers all 5 MailerLite jobs.

Your requirements

Where will it run?
Can I use it commercially?

Checks code and model licences. Includes projects with conditions, such as share-alike or revenue limits, marked amber. Unknowns are hidden.

Paid services needed?
What hardware do you have?
Operating system

3 projects

Keila

pentacent/keila
★ 2.2k active 2w ago

Open-source newsletter tool with a WYSIWYG, Markdown or MJML editor, sign-up forms, segments and analytics; Docker self-host or Keila Cloud.

Replaces Subscriber lists and segments + Write and send email campaigns + Signup forms and landing pages + Campaign analytics (partly) Not: automated email sequences
Runs locally
Confirmed: Yes
Commercial use
Partial: Conditions · AGPL-3.0-or-later
Paid services
Partial: Optional only
Hardware
Unknown: Unknown
Setup
Confirmed: Medium
7 of 8 facts sourced · checked today GitHub ↗ View details

listmonk

knadh/listmonk
★ 24k active today

Self-hosted newsletter and mailing list manager in a single Go binary with PostgreSQL; lists, SQL segments, templates, analytics and archives.

Replaces Subscriber lists and segments + Write and send email campaigns + Campaign analytics (partly) Not: automated email sequences, signup forms and landing pages
Runs locally
Confirmed: Yes
Commercial use
Partial: Conditions · AGPL-3.0-only
Paid services
Partial: Optional only
Hardware
Confirmed: CPU works
Setup
Confirmed: Easy
8 of 8 facts sourced · checked today GitHub ↗ View details

Mautic

mautic/mautic
★ 11k active today

Self-hosted marketing automation in PHP; contact segments, email builder, drag-and-drop campaign journeys, forms and landing pages.

Replaces Subscriber lists and segments + Automated email sequences (partly)
Runs locally
Confirmed: Yes
Commercial use
Partial: Conditions · GPL-3.0-or-later
Paid services
Partial: Optional only
Hardware
Partial: CPU works
Setup
Confirmed: Medium
8 of 8 facts sourced · checked today GitHub ↗ View details

Common questions about MailerLite alternatives

Is there a free, open-source alternative to MailerLite?

Yes. Keila, listmonk and Mautic are free to download and run on your own computer without paid API keys. Mautic covers every job we list for MailerLite; the others cover only part of it, so check which job you need.

Can I do subscriber lists and segments locally without a MailerLite subscription?

Yes, with Mautic (GPL-3.0-or-later), listmonk (AGPL-3.0-only) and Keila (AGPL-3.0-or-later). Check the hardware notes and licence conditions on each page before you start.

Can I do write and send email campaigns locally without a MailerLite subscription?

Yes, with Mautic (GPL-3.0-or-later), listmonk (AGPL-3.0-only) and Keila (AGPL-3.0-or-later). Check the hardware notes and licence conditions on each page before you start.

Which MailerLite alternatives can I use commercially?

With conditions: Keila, listmonk and Mautic. This is not legal advice; read each licence.

Does any open-source project replace all of MailerLite?

Mautic covers every job we list for MailerLite.

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