Dev tools · alternatives · 2026

24 alternatives to Nylas - N1

The extensible, open source mail client...

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Nylas - N1 launched in 2015; newer entries below may have overtaken it.

1. 1
   Nylas N1 Email App▲400

   The extensible, open source mail client.

   2015 · nylas.com · its alternatives →

2. 2
   Nylas Pro▲375

   The extensible, open source mail app.

   2016 · nylas.com · its alternatives →

3. 3
   Nylas Mail▲255

   The most powerful and extensible email client

   2017 · nylas.com · its alternatives →

4. 4
   Nylas Sync Engine▲73

   Modern developer platform for email, contacts, & calendar

   2015 · nylas.com · its alternatives →

5. 5
   MailSpring▲7

   A fast and maintained fork of Nylas Mail

   2017 · getmailspring.com · its alternatives →

6. 6
   Taiga▲104

   Mailbox theme for Nylas N1

   2015 · noahbuscher.github.io · its alternatives →

7. 7
   Nylas▲6

   Communications APIs for Developers

   2019 · nylas.com · its alternatives →

8. 8
   Nylas CLI▲83

   Email, calendar, and contacts for AI agents

   May 2026 · cli.nylas.com · its alternatives →

9. 9
   MailPile▲75

   A fast, responsive open source email client

   2014 · mailpile.is · its alternatives →

10. 10
    Mimestream, a native macOS email client for Gmail▲403

    A native macOS email client for Gmail

    2020 · mimestream.com · its alternatives →

11. 11
    N1 Themes▲5

    An extensive list of themes for Nylas N1 mail client

    2016 · its alternatives →

12. 12
    Nylas

    The future of email

    2015 · nylas.com · its alternatives →

13. 13
    Mimestream 1.0▲175

    A native macOS email client for Gmail

    2023 · mimestream.com · its alternatives →

14. 14
    Mail Merge▲104

    Mass Personalized Mail in Gmail.

    2014 · labnol.org · its alternatives →

15. 15
    Mailcloud▲110

    A New Way to Email

    2014 · mailcloudapp.com · its alternatives →

16. 16
    Unibox▲87

    People-centric email client

    2014 · uniboxapp.com · its alternatives →

17. 17
    Dejalu▲27

    Fast and Simple Email Client for Mac

    2016 · its alternatives →

18. 18
    SwiftIntro▲94

    Professional "matchmaking" done over email

    2014 · swiftintro.com · its alternatives →

19. 19
    Mimestream▲224

    A native macOS email client for Gmail

    2020 · mimestream.com · its alternatives →

20. 20
    Alto Mail▲132

    The new email client by AOL

    2015 · apps.apple.com · its alternatives →

21. 21
    Airmail▲93

    Lightning fast mail client for OS X

    2013 · airmailapp.com · its alternatives →

22. 22
    Nyro – Open-source AI assistant for your OS▲20

    feedback and comments greatly appreciated!

    2024 · github.com · its alternatives →

23. 23
    Nilas▲2

    The next-generation email platform

    2015 · its alternatives →

24. 24
    MailMentor▲162

    A data driven approach to writing better email

    2015 · mailmentor.io · 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 →