Life & fun · alternatives · 2026

24 alternatives to Knotable

Cut the noise out of busy email threads

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Knotable launched in 2014; newer entries below may have overtaken it.

1. 1
   Threadable▲93

   Making group email lists less noisy, more actionable

   2014 · its alternatives →

2. 2
   Gmail Mic Drop▲159

   Quickly end long threads

   2016 · blog.google · its alternatives →

3. 3
   Shortwhale▲85

   Stop drowning in email

   2014 · its alternatives →

4. 4
   Seer▲98

   Making emails actionable.

   2014 · getseer.com · its alternatives →

5. 5
   Knowtify▲199

   Send smart, automated digest emails.

   2014 · its alternatives →

6. 6
   Better BCC'd▲113

   Make replying to intro emails super simple.

   2014 · chromewebstore.google.com · its alternatives →

7. 7
   Mailcloud▲110

   A New Way to Email

   2014 · mailcloudapp.com · its alternatives →

8. 8
   Slack▲85

   Be less busy. Real-time messaging, archiving & search.

   2014 · slack.com · its alternatives →

9. 9
   ClosetoShop▲68

   Less email. More time.

   2015 · its alternatives →

10. 10
    Iterable▲94

    Smarter email marketing

    2014 · iterable.com · its alternatives →

11. 11
    Noisy▲68

    Make noise together

    2014 · noisyapp.com · its alternatives →

12. 12
    Slinky▲110

    Your slack links — organized!

    2016 · its alternatives →

13. 13
    Clubble.io▲158

    Answer emails via Slack.

    2015 · divizia.org · its alternatives →

14. 14
    SimpleSend▲96

    Send emails without the distraction of seeing your inbox

    2014 · simplesend.co · its alternatives →

15. 15
    Complete▲149

    Compose email 2x faster

    2015 · its alternatives →

16. 16
    Email 1K▲190

    Double Your Email List

    2014 · email1k.com · its alternatives →

17. 17
    Disconnect Today▲78

    Twitter @mention/DM digest emails without the distraction

    2017 · disconnect.today · its alternatives →

18. 18
    Turing Email▲112

    Making checking your inbox as fun as using Slack

    2015 · goo.gl · its alternatives →

19. 19
    Movable Ink▲86

    Target email at the moments of open

    2014 · movableink.com · its alternatives →

20. 20
    #Clicky for Slack▲121

    Post links to Slack with a single click

    2015 · chromewebstore.google.com · its alternatives →

21. 21
    Flows▲135

    Chat Without Internet

    2014 · its alternatives →

22. 22
    Boomerang for Gmail▲47

    Never let a thread die, never forget a follow up

    2014 · boomeranggmail.com · its alternatives →

23. 23
    Umbra Mail▲76

    A calmer Gmail where emails look like chat threads

    9d ago · umbra.masn.studio · its alternatives →

24. 24
    QuickMail▲86

    Get more responses from cold emails with less effort

    2014 · quickmail.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 →