Dev tools · alternatives · 2026

24 alternatives to Switchboard

Open-source email processing built in Erlang

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Switchboard launched in 2014; newer entries below may have overtaken it.

1. 1SO
   Switchboard – open-source email processing in Erlang▲92

   2014 · switchboard.spatch.co · its alternatives →

2. 2
   opensend.ccfree▲160

   The open source email platform that runs on your server

   21d ago · opensend.cc · its alternatives →

3. 3
   OpenSource Email Template▲109

   Responsive, Free, and Community Driven

   2014 · dyspatch.io · its alternatives →

4. 4
   Helo▲103

   An independent email API from former Postmark folks

   21d ago · helohq.com · its alternatives →

5. 5
   Mailcloud▲110

   A New Way to Email

   2014 · mailcloudapp.com · its alternatives →

6. 6
   Seer▲98

   Making emails actionable.

   2014 · getseer.com · its alternatives →

7. 7
   MailPile▲75

   A fast, responsive open source email client

   2014 · mailpile.is · its alternatives →

8. 8
   MailClark▲198

   The Slack bot for external communications

   2016 · its alternatives →

9. 9
   Cuttlefish ▲83

   Free transactional email server with a lovely web interface

   2014 · cuttlefish.io · its alternatives →

10. 10
    DeckHub▲221

    A TweetDeck style desktop client for GitHub.

    2016 · getdeckhub.com · its alternatives →

11. 11
    Pingly▲86

    A new messaging platform working to evolve email

    2014 · its alternatives →

12. 12
    Threadable▲93

    Making group email lists less noisy, more actionable

    2014 · its alternatives →

13. 13FM
    Flute – my attempt at a better email API▲40

    2018 · flutemail.com · its alternatives →

14. 14
    MailMentor▲162

    A data driven approach to writing better email

    2015 · mailmentor.io · its alternatives →

15. 15
    Chat.cc▲137

    Turn your email conversations into a real-time chat

    2014 · chat.cc · its alternatives →

16. 16
    BombBomb▲77

    Video E-mail Creation and Analytics Tool

    2014 · bombbomb.com · its alternatives →

17. 17
    bipio▲76

    A Personal API for Email and Web Apps

    2014 · bip.io · its alternatives →

18. 18
    immersion▲88

    Cool tool to get a people-centric view of your email life

    2014 · centerforcollectivelearning.org · its alternatives →

19. 19
    Iterable▲94

    Smarter email marketing

    2014 · iterable.com · its alternatives →

20. 20
    Boxer▲73

    The first open platform for mobile email

    2014 · omnissa.com · its alternatives →

21. 21OS
    Open-source collection of email tips and workflows▲7

    2020 · inboxze.ro · its alternatives →

22. 22
    Better BCC'd▲113

    Make replying to intro emails super simple.

    2014 · chromewebstore.google.com · its alternatives →

23. 23
    Inboxcube▲72

    The Future of Email.

    2014 · inboxcube.com · its alternatives →

24. 24
    Unibox▲87

    People-centric email client

    2014 · uniboxapp.com · 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 →