Growth · alternatives · 2026

24 alternatives to Mail Designer 365 Approvals

Email design tool for Mac with real-time feedback feature

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Mail Designer 365 Approvals launched in 2019; newer entries below may have overtaken it.

1. 1
   Mail Designer 365▲145

   Create powerful, responsive email designs on your Mac

   2017 · maildesigner365.com · its alternatives →

2. 2
   Mail Studio – IDE for designing responsive emails▲395

   Application for designing beautiful responsive emails that work everywhere.

   2021 · mailstudio.app · its alternatives →

3. 3
   CuratedLetters▲753

   Build your newsletter in minutes

   2024 · curatedletters.com · its alternatives →

4. 4
   Templates by Email Monster▲448

   Hundreds of free, responsive email templates. Pick and edit.

   2017 · its alternatives →

5. 5
   Mail Designer Pro 3▲7

   Native Mac app for designing responsive email newsletters.

   2016 · maildesigner365.com · its alternatives →

6. 6
   Really Good Emails 2.0▲674

   Really good curated email design and code inspiration

   2019 · reallygoodemails.com · its alternatives →

7. 7
   HTML Email▲783

   Responsive HTML email templates for startups & developers

   2016 · htmlemail.io · its alternatives →

8. 8
   new.email by Resend▲258

   Build cross-platform emails using natural language.

   2025 · resend.com · its alternatives →

9. 9
   AI Easy Newsletter Studio▲269

   Effortless newsletter success with AI power

   2023 · valerianotion.gumroad.com · its alternatives →

10. 10
    Stripo Email Design Platform▲752

    AI, teamwork, and a new era of email design

    2025 · stripo.email · its alternatives →

11. 11
    Email Love▲440

    Email design inspiration, templates and discovery

    2019 · emaillove.com · its alternatives →

12. 12
    Letterbox▲244

    Clean HTML email templates for creating stylish newsletters

    2021 · letterbox.craftwork.design · its alternatives →

13. 13
    MJML App▲254

    The only app that makes responsive email easy

    2016 · mjmlio.github.io · its alternatives →

14. 14
    mjml.▲550

    The open source framework for responsive emails

    2016 · mjml.io · its alternatives →

15. 15
    letterpal▲399

    Write good newsletters, fast.

    2025 · letterpal.io · its alternatives →

16. 16
    Postcards by Designmodo▲157

    Create awesome emails with drag & drop simplicity 😻

    2018 · designmodo.com · its alternatives →

17. 17
    Topol.io▲421

    Beautiful HTML e-mails easily

    2017 · topol.io · its alternatives →

18. 18
    Postcards 2▲268

    Create, edit and manage awesome email newsletters 😻

    2018 · designmodo.com · its alternatives →

19. 19
    Kombai for Email▲428

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

    2023 · figma.com · its alternatives →

20. 20
    Maildun for Mac▲92

    Design on-brand emails by hand, with AI, or over MCP

    11d ago · maildun.com · its alternatives →

21. 21
    signature.email▲240

    A powerful visual drag and drop editor for email signatures

    2020 · signature.email · its alternatives →

22. 22
    Email & Newsletter Designs▲108

    Multi-purpose Figma designs for email and newsletter

    2021 · nextmockup.com · its alternatives →

23. 23
    Email Signature Generator by Reply▲266

    Create a professional email signature that stands out

    2022 · reply.io · its alternatives →

24. 24
    Email Planner▲150

    Email campaign planner for last minute Marketers

    2018 · 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 →