OpenSwap

Mailchimp alternatives

2 projects that cover part or all of what Mailchimp does. 2 of them have an open-source core; 0 are source-available; 0 need a human license read.

Pl. 01
OPEN SOURCE

listmonk

replaces Mailchimp

AGPL-3.0 (OSI-approved, whole repository)

★ 24k●●○○○push 2026-11-10

Pl. 02
OPEN SOURCE

Mautic

replaces Mailchimp

GPL-3.0 (read from the LICENSE file; GitHub does not detect it)

★ 11kunratedpush 2026-11-09

What does it cost?

Mailchimp price: $13 a month flat (Essentials plan). No per-seat price. Per-contact, no per-seat price: Essentials from $13/mo (500 contacts); Standard $20/mo; Premium $350/mo (10,000 contacts). Corroborated; the vendor page did not render prices as text. Source: vendor pricing page, checked 2026-11-10. Vendor site: Mailchimp site. Put your plan's price into the estimator below if it differs.

Example values: replace every number with your own. None of them is vendor data.

Self-hosting saves about $780 a year for 20 seats: SaaS $2,400 vs self-host $1,620 (server $144, backups $36, admin time $1,440). Break-even at about 14 seats at these numbers.

Functions differ: an open-source tool rarely matches every Mailchimp feature. Self-hosting means you handle updates, backups and security. Sponsored plate: none yet. Advertise.