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Top 8 email tools for developer in 2023.

See details of features and pricing of email developer tools. We're comparing best apps, libraries or tools for email such as MJML, LaunchList, Sendy, Imitate Email, MailboxValidator, Litmus Email Testing, Email On Acid, SendForensics, reachowl.com, Resend to help you find your next email tool. .

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🤙🏽 Skip to product:

  1. MJML
  2. Sendy
  3. Imitate Email
  4. MailboxValidator
  5. Litmus Email Testing
  6. Email On Acid
  7. SendForensics
  8. Resend


logo MJML


The only framework that makes responsive email easy. MJML is a markup language designed to reduce the pain of coding a responsive email.

2. Sendy

logo Sendy


Sendy is a self hosted newsletter application that lets you send trackable emails 100x cheaper via Amazon SES.

🛠 Sendy's Features

What can developer do with Sendy

Send newsletters 100x cheaper

Sendy sends fast multi-threaded emails via Amazon SES at only $1 per 10,000 emails. Free yourself from paying for expensive email campaigns and forget about limits set by your host while at the same time enjoy high deliverability rate. Best bang for your buck!

Beautiful reports

See results of every campaign and autoresponders in a beautifully formatted report. Visualize opens, clicks, bounces, complaints and countries with charts & data. You can export segments of subscribers from your report for re-targetting.

White labeled client accounts

Managing multiple products or services? With Sendy, you can organize them into groups or as we like to call it, 'brands'. Optionally give your client access to their own brand and let them send newsletters on their own at a price you set. You can even set monthly sending limits and adjust client privileges.


Automate your marketing by setting up a series of emails in drip campaigns to automatically follow up with your subscribers at time intervals you set. Or send emails annually or one off emails at a specific date. Keep your subscribers engaged and your brand at the top of their mind.

List segmentation

Research shows sending emails to targeted segments can increase email engagement as well as revenue by more than 25%. Sendy enables you to create segments for any list based on any conditions you define. Choose segments and/or lists to include or exclude in your email campaigns for optimized results.

Rules & Webhooks

Decide what happens when something happens - by creating 'Rules'. For example, setup a rule to get notified by email when a scheduled campaign starts sending, trigger a webhook when an autoresponder is sent, unsubscribe someone from a list when they're signed up to another, and so on.

and more !

💰 Sendy's Pricing

How much does Sendy cost?

One time payment

$69 One time fee. You must self host it.

3. Imitate Email

logo Imitate Email

Imitate Email

No more accidentally spamming real people. Ensure emails are sent at the right time, look great and do this inside the software you’re building

🛠 Imitate Email's Features

What can developer do with Imitate Email

Developers, QA and CI/CD Pipelines. All taken care of with Imitate Email.

Developers build better software, quicker, with our sandbox SMTP server and Web App

Testers and End Clients easily test email based application flows with the embedded web widget

Integration Testing is a breeze with programmatic IMAP support, web sockets and SMTP.

💰 Imitate Email's Pricing

How much does Imitate Email cost?

Solo developers can send 15 emails a day for free forever with access to all of the features. Paid plans available for more emails and for teams.

4. MailboxValidator

logo MailboxValidator


MailboxValidator email validation clean email lists and reduces bounce. It connects to the mail server and checks whether the mailbox exists or not.

5. Litmus Email Testing

logo Litmus Email Testing

Litmus Email Testing

Prevent broken emails with our premier email testing tools that provide your team the resources needed to preview, test, and optimize email performance.

🛠 Litmus Email Testing's Features

What can developer do with Litmus Email Testing

Instantly preview your campaigns in popular email clients

Whether you are an email team of one, or a team of many, Litmus gives you the power to test and preview 100+ popular email clients—including Dark Mode—from a single spot. In seconds. Plus, get proactive recommendations based on Litmus data to ensure you’re optimizing for the most important clients and devices and leverage Email Testing Profiles to focus your testing where you need it most.

Get an automated, comprehensive QA test

Run an automated pre-send Litmus Test to check links, images, tracking, and other critical elements to optimize your email for opens and conversions. Plus, maximize the impact of every email by confirming that content is accessible to subscribers of all abilities—including those with color vision deficiency.

Ensure your email reaches the inbox—not the junk folder

Emails that don’t reach your subscribers would be such a waste. With Litmus Spam Testing, scan your email against 25+ different tests and get notified of any issues. Plus, use actionable, contextual advice to fix any problems identified.

Accelerate your email testing process with integrations

Test your email wherever you build to catch and fix any issues early in your email workflow, reducing review cycles and saving time. Review campaigns alongside your ESP or code editor with the Litmus Chrome Extension. Easily import emails to Litmus for review and final pre-send testing with ESP Sync. The result? Faster approvals, more successful deliveries, and better-than-ever conversions.

💰 Litmus Email Testing's Pricing

How much does Litmus Email Testing cost?


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6. Email On Acid

logo Email On Acid

Email On Acid

Email on Acid is the leading email pre-deployment checklist and a configurable part of your email marketing workflow, from accessibility checks to email previews.

🛠 Email On Acid's Features

What can developer do with Email On Acid


Test without limits

Every inbox displays emails differently. With unlimited testing and previews on the latest clients and devices, Email on Acid helps ensure your messages display perfectly in any inbox.


Collaborate more effectively

Email on Acid makes teamwork easy. Share, comment, edit, and resolve directly within the app with unlimited share links and customizable permissions.


Verify your contact lists

Don’t let bad email addresses ruin your deliverability. Verify your lists with the fastest, most accurate email verification platform available with InboxReady.


Get expert guidance

With available Deliverability Services from InboxReady, our email professionals will help develop and implement a tailored email strategy centered around your business’ unique needs.

💰 Email On Acid's Pricing

How much does Email On Acid cost?


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7. SendForensics

logo SendForensics


The only deliverability tool you need. Find out why your email is going to spam and protect your sender reputation

🛠 SendForensics's Features

What can developer do with SendForensics


Protect and monitor your sender reputation

  • Track domain and IP reputation seperately
  • Instantly spot changes to important reputation metrics
  • See your Google Postmaster Tools and SNDS data directly
  • Pull in ISP feedback loops (FBLs) that matter to you
  • Monitor unsubscribes, bounces, open, and click rates with 20+ ESP integrations


Find out who's sending from your brand's domain

  • Monitor DMARC compliance and failure rates
  • Uncover sources sending unauthenticated email
  • Resolve SPF or DKIM issues causing DMARC failures
  • Detect and prevent email phishing or spoofing attacks


Find out immediately if your domain or IP is blacklisted

  • Check your domain or IP against the most influential blacklists
  • Follow actionable guidance to get delisted
  • Respond quickly with automatic Slack, email, or webhook alerts


Predict if your email goes to spam or the Promotion tab

  • Find and fix potential inbox placement problems
  • Run seed list test for Gmail, Yahoo, Outlook, and other major providers
  • Unlimited inbox placement tests


Perfect your email's design across devices and clients

  • Preview campaigns in popular email clients
  • Find design problems before sending
  • Test as much as your want with unlimited client preview tests

💰 SendForensics's Pricing

How much does SendForensics cost?


Screenshot 2023-04-29 at 17.27.51.png


Screenshot 2023-04-29 at 17.28.03.png

8. Resend

logo Resend


Build, test, and send transactional emails at scale.

🛠 Resend's Features

What can developer do with Resend

Test Mode

Simulate events and experiment with our API without the risk of accidentally sending real emails to real people.

Modular Webhooks

Receive real-time notifications directly to your server. Every time an email is delivered, opened, bounces, or a link is clicked.

💰 Resend's Pricing

How much does Resend cost?

Screenshot 2023-07-02 at 18.57.59.png

👋🏽 What is this page?

"What is the best email tool for developer? " Hope this page answering your question. This is a comparison page of recommended email coding tools, for developer by developer. Find your next top email alternative programming tools here. We list features and pricing with hope this resources can help you decide which email tools you need and best for your next project.

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