Best Open Source Alternatives to MailerLite

Compare the best free and open-source alternatives to MailerLite — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 4 alternatives

MailerLite

Proprietary SaaS

MailerLite alternatives compared

Open-source alternatives to MailerLite, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Billion Mail	16,178	AGPL-3.0	DockerLinux	Yes	Jun 2026	Visit
Plunk	5,573	AGPL-3.0	Web	No	Nov 2026	Visit
Notifuse	2,274	—	DockerLinux	Yes	Nov 2026	Visit
Hyvor Post	34	AGPL-3.0	Web	No	Oct 2026	Visit

Top open-source MailerLite alternatives

Billion Mail16,178AGPL-3.0

Self-hosted mail server and campaign platform replacing Mailchimp with Postfix, Dovecot, and Roundcube on your own Linux server without per-contact fees.

DockerLinux

vs MailerLite: a free, open-source option you fully control, licensed AGPL-3.0.

Visit

EasyP

Promoted

The modern standard for Protobuf workflows

Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.

lintgeneratebreakingeasyp.lock

go · ts · java generated

$ easyp breaking

backward compatible

Plunk5,573AGPL-3.0

Plunk is an open-source email platform replacing Resend and Mailchimp with zero contact fees, automated workflows, and self-hosted Amazon SES delivery.

Web

vs MailerLite: a free, open-source option you fully control, licensed AGPL-3.0.

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Notifuse2,274

Notifuse is a self-hosted email platform replacing Mailchimp with a visual MJML builder, multi-provider delivery routing, and zero per-contact fees.

DockerLinux

vs MailerLite: a free, open-source option you fully control.

Visit Details

Hyvor Post34AGPL-3.0

Hyvor Post is an open-source newsletter platform with zero tracking pixels, replacing complex marketing suites with privacy-respecting email broadcasts.

Web

vs MailerLite: a free, open-source option you fully control, licensed AGPL-3.0.

Visit Details