Growth · alternatives · 2026

24 alternatives to REBEL API Lite

Build beautiful responsive emails with just JSON

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. REBEL API Lite launched in 2018; newer entries below may have overtaken it.

1. 1
   Ink▲241

   Create responsive HTML emails that work on any device/client

   2014 · zurb.com · its alternatives →

2. 2
   HTML Email▲783

   Responsive HTML email templates for startups & developers

   2016 · htmlemail.io · its alternatives →

3. 3
   Responsive Email Templates▲310

   Ensure your email campaigns look good on any device with our responsive email templates.

   2012 · zurb.com · its alternatives →

4. 4
   Foundation for Emails 2▲504

   Create responsive HTML emails that work on any device

   2016 · get.foundation · its alternatives →

5. 5
   Resend▲1,325

   An entire collection of pre-built components with a much faster development experience.

   2023 · resend.com · its alternatives →

6. 6
   Email.md – Markdown to responsive, email-safe HTML▲380

   Turn markdown into responsive, email-safe HTML that renders perfectly across every client.

   Mar 2026 · emailmd.dev · its alternatives →

7. 7
   Postcards▲238

   Create 💌 emails in minutes with drag & drop simplicity

   2018 · designmodo.com · its alternatives →

8. 8
   RebelMail API▲89

   The world's first API for interactive email.

   2016 · its alternatives →

9. 9
   Kombai for Email▲428

   Email designs to code that works even on Outlook, in a click

   2023 · figma.com · its alternatives →

10. 10
    Responsive Email▲180

    A collection of patterns & modules for responsive emails

    2014 · its alternatives →

11. 11
    MJML App▲254

    The only app that makes responsive email easy

    2016 · mjmlio.github.io · its alternatives →

12. 12
    new.email by Resend▲258

    Build cross-platform emails using natural language.

    2025 · resend.com · its alternatives →

13. 13
    Mail Studio – IDE for designing responsive emails▲395

    Application for designing beautiful responsive emails that work everywhere.

    2021 · mailstudio.app · its alternatives →

14. 14
    Sendra▲104

    Design emails in Figma, export HTML that works everywhere

    Aug 2026 · hellosendra.com · its alternatives →

15. 15
    Emailify for Figma▲114

    Design and export production-ready HTML emails from Figma

    2022 · figma.com · its alternatives →

16. 16
    Startup Emails▲434

    Responsive HTML email templates for startups

    2017 · htmlemailtemplates.net · its alternatives →

17. 17
    HEML▲191

    Quickly craft clean, responsive emails.

    2017 · heml.io · its alternatives →

18. 18
    Volleyy▲126

    Easiest tool to create responsive newsletters.

    2016 · its alternatives →

19. 19
    Mail Designer 365▲145

    Create powerful, responsive email designs on your Mac

    2017 · maildesigner365.com · its alternatives →

20. 20
    Unosend▲205

    Send transactional + marketing email w/ 99.9% deliverability

    Dec 2025 · unosend.co · its alternatives →

21. 21
    Canvas by CampaignMonitor▲121

    A new way to build responsive, beautiful emails

    2014 · campaignmonitor.com · its alternatives →

22. 22
    pollinate▲166

    Grow your newsletter on Twitter and send from wherever

    2022 · pollinate.email · its alternatives →

23. 23
    MailDeveloper▲162

    Advanced editor for responsive HTML emails

    2015 · maildeveloper.com · its alternatives →

24. 24
    Dynamic Email Template▲114

    Generate email template code with dynamic JSON data or API

    2019 · dynamic-template.xyz · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →