Ghost
98 · HealthyPublishing platform for blogs and newsletters, with paid memberships, subscriptions and email delivery built in.
Open source Email marketing
Mautic
87 · HealthyMarketing automation platform with campaigns, segments, landing pages and lead scoring.
listmonk
83 · HealthyHigh-performance newsletter and mailing-list manager shipped as a single binary.
useSend
74 · StableEmail sending service with an API, SMTP, domain management and campaigns, running on Amazon SES.
Posta
71 · StableEmail delivery service that lets your apps send through an HTTP API, with templates, delivery tracking and analytics.
Plunk
70 · StableEmail platform for SaaS products that combines transactional email, campaigns and automations on top of Amazon SES.
Postal
65 · StableMail delivery platform for sending transactional email from your own servers.
Keila
64 · StableNewsletter tool with a block editor, sign-up forms and campaign stats.
Dittofeed
61 · StableCustomer engagement platform for automated email, SMS and push journeys.
BillionMail
56 · CautionSelf-hosted mail server and newsletter platform for campaigns, templates and subscriber lists.
Mailtrain
15 · At riskSelf-hosted newsletter app built on Node.js.
Source-available and unverified licenses
The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.
Notifuse
68 · StableNewsletter, email marketing and transactional email platform with a visual MJML editor and several sending providers.
Notifuse
Newsletter, email marketing and transactional email platform with a visual MJML editor and several sending providers.
Will it still be around?
Stable
Score 68/100
Can a business use it freely?
Free core, paid extras
Business Source License 1.1 · source-available, not open source
Flat Rate Deploy
At 500 contacts, Mailchimp Standard costs about $20 a month. Notifuse on OpenTools costs $15 a month, setup included, so you save $5 a month, about $180 over three years.
Monthly cost
- Notifuse on OpenTools
- $15
- Mailchimp
$20
You save each month
$5/mo
25% less than today
Saving from month one
You save
- Over 3 years
- $180
- In year one
- $60
List price checked 8 Oct 2026 · Source · Disclaimer
Health score: 68/100
Stable · activity, bus factor and issue responsiveness, from GitHub
Score v2 · How it works
Activity
45% weight100/100
- Last commit 22 days ago (100/100).
- 544 commits in the past 12 months (100/100).
- 50+ releases in the past 12 months (100/100).
Bus factor
30% weight9/100
- Top contributor wrote 93% of the last 100 commits (past 12 months).
- 5 people authored those commits.
Responsiveness
25% weight82/100
- 94% of all issues are closed (19 open, 321 closed) (100/100).
- 21 of 30 recent issues got a reply or were closed (70/100).
License
Free core, paid extras
Business Source License 1.1 · Source-available, not open source
What you need to do
The core is free to use. Enterprise features, kept in a separately licensed part of the code, need a paid license in production.
For Notifuse
From v40 the code is under BSL 1.1, which allows production use, including for others, but a paid license key is needed for more than three workspaces, granular permissions, SSO, audit logs, Amazon SES tenants and multilingual templates. v39 and earlier stay AGPL-3.0.
Business Source License 1.1 (AGPL-3.0 up to v39) · Source-available, not open source. The code is public, but the license restricts how you can use it, usually by banning competing hosted services or capping production use. Not open source.
License text checked 2026-10-09 · Read it
GitHub activity
- Stars
- 2.2k
- Forks
- 234
- Commits, 12 mo
- 544
- last 22 days ago
- Releases, 12 mo
- 50+
- last 22 days ago
- Contributors
- 3
- 5 in last 100 commits
- Open issues
- 19
- 321 closed
Snapshot from 2026-10-09 · Funding: github
Top contributors
Points for pull requests merged into Notifuse and reviews of them since 10 October 2025. Building something another user asked for earns more.
