Sendinblue costs $49/mo.
These cost $0.
6 free alternatives to Sendinblue, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
The top-rated free, open-source replacement for Sendinblue is Listmonk (AGPL-3.0 Open Source). Across this category, 5 self-hostable tools are available (including Listmonk and Plunk). Switching a 5-person team saves up to $2,940/year compared to Sendinblue's $49/mo subscription.
The catch: listmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.
Sendinblue vs Free Alternatives
Quick side-by-side comparison · $0/mo vs $49/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| Listmonk | open source | AGPL-3.0 | Self-host | ★ 24.2k | Sendinblue vs Listmonk → |
| Plunk | open source | AGPL-3.0 | Self-host | ★ 5.6k | Sendinblue vs Plunk → |
| Dittofeed | open source | MIT | Self-host | ★ 3k | Sendinblue vs Dittofeed → |
| Notifuse | open source | AGPL-3.0 | Self-host | ★ 2.3k | Sendinblue vs Notifuse → |
| Keila | open source | AGPL-3.0+ | Self-host | ★ 2.3k | Sendinblue vs Keila → |
| Hyvor Post | open source | Open Source | Local | ★ 34 | Sendinblue vs Hyvor Post → |
The picks
6 open source · ranked by fit
- 01
Listmonk
open sourceAGPL-3.0Self-host24.2knov 2026Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres.
The catch vs Sendinbluelistmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Docker Compose or a single release binary plus PostgreSQL
- setup
- You still need a PostgreSQL database and a trustworthy SMTP/API sender with authenticated DNS.
- your data
- Subscribers, campaigns, templates, and analytics live in a PostgreSQL database on your server.
- checked
- 2026-11-07
- 02
Plunk
open sourceAGPL-3.0Self-host5.6knov 2026Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.
The catch vs SendinbluePlunk is developer-first and much thinner in visual audience management, CRM depth, segmentation tooling, and marketer-oriented reporting.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Hosted signup, or the official Docker Compose stack
- setup
- Hosted use still needs domain authentication; self-hosting adds PostgreSQL, Redis, MinIO, Nginx or another proxy, exposed web and SMTP services, DNS, and ongoing deliverability work.
- your data
- The self-hosted stack stores core data in PostgreSQL, jobs and cache in Redis, and objects in MinIO; hosted data is kept in Plunk's EU infrastructure.
- checked
- 2026-11-07
- 03
Dittofeed
open sourceMITSelf-host3knov 2026Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.
The catch vs SendinblueDittofeed handles event-driven segments and journeys, but its Postgres-and-ClickHouse operating burden and narrower all-in-one analytics experience are worse than Bento's managed stack.
Install, platforms & data +
- platforms
- webself-hostedself-host, real ops
- install
- Dittofeed Cloud or Docker Compose/Kubernetes self-host
- setup
- Docker Compose brings Postgres and ClickHouse, but the harder first step is instrumenting product events and connecting an email provider.
- your data
- Self-hosted identity and configuration data lives in PostgreSQL and event/segment data in ClickHouse; optional blob data can use object storage.
- checked
- 2026-11-07
- 04
Notifuse
open sourceAGPL-3.0Self-host2.3knov 2026Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.
The catch vs SendinblueNotifuse is newer and narrower, without ActiveCampaign's mature CRM, predictive features, and thousand-plus integration ecosystem.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Hosted signup, or one application container plus PostgreSQL for self-hosting
- setup
- Self-hosting still needs Docker, PostgreSQL, a public HTTPS endpoint, an SMTP or API sending provider, and correctly authenticated sending domains.
- your data
- Self-hosted contacts, campaigns, automations, and events live in PostgreSQL; files can use S3-compatible storage, and the configured email provider receives message payloads. Hosted data lives in Notifuse's cloud.
- checked
- 2026-11-07
- 05
Keila
open sourceAGPL-3.0+Self-host2.3knov 2026Self-hosted newsletter platform with powerful features, data protection, and full control over your mailing lists and campaigns.
The catch vs SendinblueKeila gives you a friendly campaign editor and tracking, but delivery reputation, SMTP configuration, backups, and upgrades become your responsibility rather than Campaign Monitor's.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Keila Cloud signup or Docker image plus PostgreSQL
- setup
- Self-hosting requires Docker, PostgreSQL, a public HTTPS domain, and credentials for SMTP, SES, SendGrid, Mailgun, or Postmark.
- your data
- Self-hosted subscribers, campaigns, and job state live in PostgreSQL; uploaded campaign assets live on persistent server storage.
- checked
- 2026-11-07
- 06
Hyvor Post
open sourceOpen SourceLocal34nov 2026Create and send newsletters with complete privacy protection. No tracking, no data collection - just simple, clean email delivery with customizable templates and archive sites.
The catch vs SendinblueCommunity-driven open source project without dedicated enterprise SLAs.
Install, platforms & data +
- platforms
- desktopcross-platformone-click install
- install
- Clone https://github.com/hyvor/post or deploy with Docker Compose
- setup
- Download the native package or installer for your operating system.
- your data
- All application data lives locally on your own machine.
- checked
- 2026-11-07
Sendinblue Head-to-Head Comparisons (2027)
Side-by-side trade-off breakdowns · 6 free alternatives
Frequently Asked Questions
Direct answers · Sendinblue open-source replacements
What is the best free alternative to Sendinblue?+
The top free alternative to Sendinblue is Listmonk (open source, AGPL-3.0). Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres. Other popular Sendinblue replacements include Plunk, Dittofeed, Notifuse.
Can I self-host a free replacement for Sendinblue?+
Yes. Of the 6 free alternatives to Sendinblue, 5 can be self-hosted on your own server or local machine: Listmonk (AGPL-3.0), Plunk (AGPL-3.0), Dittofeed (MIT), Notifuse (AGPL-3.0), Keila (AGPL-3.0+).
How much does switching from Sendinblue to a free alternative save?+
Sendinblue starts at $49/month per seat ($588/year). Switching a 5-person team to a free alternative like Listmonk saves $2,940 per year in software subscription fees.
Should I vibe-code or build my own Sendinblue clone from scratch?+
Our build verdict for Sendinblue is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for Sendinblue or rebuilding it from scratch, deploy one of the 6 battle-tested open-source alternatives like Listmonk.
What is the catch when switching from Sendinblue to Listmonk?+
listmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.
