86 selected resources · 2026-10-09
Send newsletters, onboarding messages and transactional email with an explicit delivery owner.
Separate list management, behavioral orchestration and email transport. Check opt-out, suppression and sender setup.
A marketing automation project with documented self-hosting and community development routes.
Use when: You need campaign orchestration beyond a simple newsletter and can operate the application.
An AGPLv3 newsletter and mailing-list manager distributed as a standalone application backed by PostgreSQL.
Use when: You want to manage lists and campaigns while keeping application hosting under your control.
An email delivery service whose pricing separates transactional and marketing email and documents SMTP relay support.
Use when: A developer owns email delivery and you need transport with a clearly defined sending use case.
Developer-first in-product assistant and product-adoption platform that learns a product by using it, answers questions, provides guided workflows and can take actions through an Assist API, SDK and configured tools.
Use when: Good fit for a SaaS growth-engineering team that wants in-product onboarding, answers and guided activation tied to the application rather than a separate help center or rigid no-code tour builder.
Newsletter publishing and audience monetization platform with email sending, website/newsletter templates, paid subscriptions, ad network, boosts and analytics.
Use when: Strong for newsletter-led acquisition teams that want publishing, audience growth and monetization in one product.
Combine collection, experimental control and qualitative feedback around one useful product action.
Choose an editorial system, list manager and delivery owner deliberately.
Connect publishing, crawl diagnosis and a sustainable social contribution plan.
Compare verified open-source cores and community editions across categories, including license boundaries and operating effort.
A selected library for SaaS, AI and developer-tool founders. Source-backed observations are separate from our advice; inclusion is not a ranking or a tested performance claim.