Open Source Alternatives

Alternatives to SendGrid

Cloud-based email delivery and marketing platform.

5 building blocks
sendgrid.com ↗

SendGrid is a trademark of its respective owner.

Updated Mar 2026

Building Blocks

SendGrid is a platform — it bundles multiple capabilities into one subscription. These tools each cover one piece. Teams often assemble 2–3 of them instead of paying for the full suite.

Plunk

22covers: transactional email55%

Open source email platform

Listmonk

18covers: email campaigns50%

High-performance, self-hosted newsletter manager

Nodemailer

12covers: email sending40%

Send emails with Node.js

Novu

12covers: notification routing40%

Open source notification infrastructure

Postal

11covers: SMTP sending55%

Fully featured open source mail delivery platform

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Including when one of these alternatives ships a major update. Free.