Best EmailJS Alternatives & Competitors in 2025

Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

Email sending library for PHP.

Open Source

Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.

Try for free paid Free Trial $12.0 / Monthly (Per inbox, per month.)

MailChimp is the best way to design, send, and share email newsletters.

Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free

Vegamail will make your transactional emails look modern and beautiful, with no effort.What's inside?22 Email templatesHTML and MJML format for easy customizationOptimized To work with most email clientsModernFeels modern, minimal, and beautiful.

A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.

Open Source

Mailkit provides a XML-RPC standard based API for secure remote access and control of some of the functions available in the system.

Klaviyo helps brands own the customer experience, grow higher-value relationships, and deliver more personalized marketing experiences across email, mobile, and web.

Unlimited enterprise email hosting

Native email app for email productivity.

GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!

All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.

Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.

Open Source free