Work · alternatives · 2026

24 alternatives to OOO

Leave automatic out of office reply in Slack

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OOO launched in 2020; newer entries below may have overtaken it.

1. 1
   Snoooz▲493

   Let AI manage your Out-of-Office

   2023 · snoooz.ai · its alternatives →

2. 2
   Out of Office Email Generator▲120

   Personalized, witty OOO replies for guilt-free vacationing.

   2018 · ooogenerator.com · its alternatives →

3. 3
   AutoResponder for Slack▲86

   Quick & easy out of office messages in Slack

   2019 · its alternatives →

4. 4
   Automatic out-of-office calendar▲94

   Just mark your calendar as OOO, we take care of the rest

   2020 · getclockwise.com · its alternatives →

5. 5
   OOO (Email) Generator▲91

   Brighten someone's day with a funky out of office email.

   2020 · vacationtracker.io · its alternatives →

6. 6
   ReplySync▲2

   Out-of-office emails in sync with employees Slack-status

   2024 · replysync.com · its alternatives →

7. 7
   I automated half of my typing▲815

   I've been using this for about a year now - I parsed 6 months of my messages on slack and found the most common phrases I use and generated keyboard shortcuts for them.

   2023 · github.com · its alternatives →

8. 8
   Slack Holiday Mode by Spoke.ai▲262

   Your AI assistant for your first day back

   2024 · spoke.ai · its alternatives →

9. 9
   Ogment AI▲159

   Make your product accessible in ChatGPT & Claude, in minutes

   Jul 2026 · ogment.ai · its alternatives →

10. 10
    Recurring Out Of Office▲5

    A free Gmail add-on that helps you manage your recuring OOO!

    2025 · workspace.google.com · its alternatives →

11. 11
    Stop Slacking▲74

    Reply to Slack messages via email. Stay focused.

    2018 · stopslacking.com · its alternatives →

12. 12
    OfficeAmp▲117

    Collect, manage and resolve all office chores in Slack

    2017 · officeamp.com · its alternatives →

13. 13
    AI Out of Office Generator▲9

    AI Out of Office Generator: Create fun and smart OOO replies

    2025 · outofoffice.one · its alternatives →

14. 14
    Bitmoji for Slack▲95

    Bring office chat to life with your own personal emoji

    2016 · bitmoji.com · its alternatives →

15. 15
    The Office (Slack)▲272

    Every episode of The Office recreated in Slack

    2020 · theofficeslack.com · its alternatives →

16. 16
    Recurring Out Of Office▲3

    A free Gmail add-on that helps you manage your recuring OOO!

    2024 · workspace.google.com · its alternatives →

17. 17
    Slack 4.0▲472

    A snappier, more efficient Slack desktop experience

    2019 · slack.com · its alternatives →

18. 18
    Dialogs by Slack▲396

    Build interactive forms in Slack that do all sorts of things

    2017 · docs.slack.dev · its alternatives →

19. 19
    Slack Button▲159

    Easy way for other teams to install your incoming webhooks

    2015 · its alternatives →

20. 20
    Out of Office Hours▲309

    Connecting newcomers and people working in the tech industry

    2016 · its alternatives →

21. 21
    StatusOk (Open source)▲134

    Get notified through Slack/email when your website is down

    2016 · github.com · its alternatives →

22. 22
    Paco▲176

    Never miss a thing on Slack — be more calm and productive

    2021 · its alternatives →

23. 23
    Office Slacker▲111

    Silly app helps office slackers pretend to be busy working

    2024 · lab.aizastudio.com · its alternatives →

24. 24
    Officely▲96

    The only desk booking tool that lives in Slack

    2021 · getofficely.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 →