Open-source alternative
for Brevo
Simpler pricing, cleaner API, open-source code. All the email power, none of the bloat. Built for developers, not marketing teams.
Pricing That Scales With You
Pay for emails sent, not contacts stored
Pay per email
Simple pay-as-you-go pricing. Unlimited contacts, pay only for emails sent.
- Unlimited contacts included
- All features on all plans
- No monthly minimums
Tiered by contacts
Monthly subscription tiers based on contact count with feature restrictions on lower plans.
- Pricing increases with contacts
- Features gated by tier
- Monthly subscription required
Why Choose Zenkai Over Brevo
Focus on email, not feature overload
Simpler Pricing
Pay $0.001 per email with unlimited contacts. No contact-based tiers, no surprise charges as you grow. Predictable costs.
Developer-First
Clean API, clear documentation, 5-minute setup. Built for developers who want to ship fast, not navigate complex marketing suites.
Open Source
AGPL-3.0 licensed. Inspect the code, contribute features, fork if needed. Full transparency, no vendor lock-in. Brevo is proprietary.
Self-Hostable
Run on your infrastructure with Docker. Full data control, compliance-ready, cost-optimized. Brevo is cloud-only.
Unlimited Contacts
Store unlimited contacts at no extra cost. Brevo charges more as your contact list grows. With Zenkai, you only pay for emails sent.
Email-Focused
Zenkai does email and does it well. No SMS, chat, CRM bloat. If you need just email automation, Zenkai is simpler and more focused.
Feature comparison
Frequently asked questions
What is the difference between Zenkai and Brevo (Sendinblue)?
Zenkai is built for developers with a simple API and pay-as-you-go pricing, while Brevo is an all-in-one marketing suite with more features but higher complexity. Zenkai is open-source and self-hostable, while Brevo is proprietary. Zenkai charges per email sent with unlimited contacts, while Brevo uses tiered pricing based on contact count.
Is Zenkai cheaper than Brevo?
It depends on your usage pattern. Zenkai's pay-as-you-go model ($0.001 per email) with unlimited contacts is often more cost-effective for businesses with large contact lists but moderate email volume. Brevo charges based on contact count, which can become expensive as your audience grows.
Can I self-host Zenkai unlike Brevo?
Yes. Zenkai is open-source (AGPL-3.0) and can be self-hosted using Docker, giving you full control over your data and infrastructure. Brevo is a proprietary cloud-only service with no self-hosting option.
Is Zenkai easier to use than Brevo?
For developers, yes. Zenkai focuses on email essentials with a clean API and minimal setup. Brevo offers more features (SMS, chat, CRM) which adds complexity. If you just need email automation, Zenkai is simpler. If you need an all-in-one marketing platform, Brevo might be better.
How easy is it to migrate from Brevo to Zenkai?
Migration is straightforward. Export your contacts from Brevo, import them to Zenkai via CSV, and update your application to use Zenkai's API. Most migrations take less than a day. Zenkai's API is well-documented and easy to integrate.
Make the switch to simplicity
Join developers choosing focused tools over bloated marketing suites. Start free, no credit card required.