Email sending platforms and email templating tools in 2026
5 commercial products, ranked by how many people read about each, or about its maker, on Wikipedia's mobile site. Of those with an article of their own, SendGrid has the most readers, about 283 a month. 28 open-source projects, ranked by GitHub stars and how recently each was worked on. React Email leads with 20k stars, ahead of MJML. 19 had code pushed in the last three months. Most common licenses: MIT (19), AGPL-3.0 (6) and Apache-2.0 (2).
Commercial email sending platforms and email templating tools
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1
SendGrid Twilio
SendGrid's trusted email API and marketing campaigns platform is now available through Twilio.com.
Building block Production-ready An application needs to send high volumes of email through a well-known API.
283 readers a month Since 2009 Commercial -
2
Amazon SES Amazon Web Services
Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service provider that allows developers to send email from within any application.
Building block Production-ready You send large volumes of email, run on AWS and can manage deliverability yourself.
Commercial -
3
Mailgun Sinch
Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!
Building block Production-ready Developers need to send transactional email and also parse inbound email into their application.
64 readers a month Since 2010 Commercial -
4
Postmark ActiveCampaign
Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.
Building block Production-ready Password resets, receipts and other critical app email must arrive quickly and reliably.
Commercial -
5
Resend Resend
The best way to reach humans instead of spam folders. Deliver transactional and marketing emails at scale.
Building block Usable A modern web app team, especially using React and Next.js, wants a clean email API that is quick to integrate.
Commercial
New open-source projects
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1
MillionSend MillionSend
The open-source email platform — self-host on your own AWS SES, or use the cloud. Resend-compatible API.
Complete system Experimental You use Resend's API but want to self-host on SES to cut costs.
★ 258 AGPL-3.0 TypeScript Active, pushed 6 days ago
Open-source email sending platforms and email templating tools
Complete systems you can adopt 5
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1
Postal postalserver
📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail
Complete system Production-ready You send large volumes of transactional email and want your own Sendgrid-style platform on your own IPs.
★ 17k MIT Ruby Active, pushed 4 days ago -
2
Plunk useplunk
The Open-Source Email Platform
Complete system Usable You want one open-source tool for both product emails and newsletters on AWS SES.
★ 5.6k AGPL-3.0 TypeScript Active, pushed yesterday -
3
useSend usesend
Open source alternative to Resend, Sendgrid, Postmark etc.
Complete system Usable You want Resend or Postmark convenience at SES prices, hosted or self-hosted.
★ 4.8k AGPL-3.0 TypeScript Active, pushed 3 days ago -
4
Posta goposta
Self-hosted email delivery platform that enables applications to send emails via HTTP APIs while handling SMTP delivery, templates, storage, security, and analytics. Fully self-hostable alternative to services like SendGrid or Mailgun.
Complete system Experimental You want your apps' transactional email behind one self-hosted API with logs and templates.
★ 633 AGPL-3.0 Go Active, pushed yesterday -
5
Larasend savvyagents
Self-hosted transactional email platform — send through your own AWS SES account, keep the dashboard, API keys, delivery logs, and webhooks on your own infrastructure.
Complete system Experimental A Laravel team wants Resend-style tooling while keeping data and costs on its own SES account.
★ 440 MIT PHP Active, pushed 3 months ago
Frameworks and platforms to build on 1
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1
MJML mjmlio
MJML: the only framework that makes responsive email easy
Framework or platform Production-ready Anyone who hand-codes HTML emails and wants them to render in Outlook and Gmail without table hacks.
★ 18k MIT JavaScript Active, pushed 10 days ago
Building blocks for your own system 2
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1
Mrml jdrouet
Implementation of mjml in rust
Building block Usable You render MJML at high volume or outside Node.js and want speed.
★ 510 MIT HTML Active, pushed 17 days ago -
2
Elements unlayer
React components for transactional emails, landing pages, invoices and PDFs: email-safe HTML, responsive web HTML, and print-ready PDF HTML from one component tree.
Building block Experimental You produce emails, invoices and documents from React and want one set of components for all of them.
★ 423 MIT TypeScript Active, pushed 13 days ago
Integrations 1
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1
React Email Editor unlayer
Drag-n-Drop Email Editor Component for React.js
Integration Production-ready Your product needs users to design emails or newsletters inside it.
★ 5.3k MIT TypeScript Active, pushed 2 days ago
Developer tools 1
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1
React Email resend
💌 Build and send emails using React
Developer tool Production-ready Your team writes React and wants maintainable, previewable email templates for any sending provider.
★ 20k MIT TypeScript Active, pushed 3 days ago
Compared head to head
Also under marketing automation platforms
Open-source licenses
- Permissive: 22. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
- Network copyleft: 6. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
Languages
TypeScript 8, JavaScript 6, Go 4, PHP 3, Python 2, Ruby 1, HTML 1, C# 1, Rust 1 and Elixir 1.
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