Life & fun · alternatives · 2026

Slack Night Mode is a browser extension that enables dark theme functionality for Slack's web interface. Launched in 2016, it allows users to reduce eye strain during low-light conditions by applying a dark color… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Slack Night Mode launched in 2016; newer entries below may have overtaken it.

1. 1
   Twitter Web Night Mode▲159

   A dark themed night mode for Twitter on the web

   2017 · chromewebstore.google.com · its alternatives →

2. 2
   Sblack▲463

   Ultra-lightweight Mac client for Slack, with Dark Mode.

   2018 · sblack.online · its alternatives →

3. 3
   Slack Themes▲342

   Make your Slack pretty with custom themes

   2015 · slackthemes.net · its alternatives →

4. 4
   Dark Reader extension – Dark mode for every website▲369

   Enable dark mode (night mode) on all websites

   2018 · darkreader.org · its alternatives →

5. 5
   Darkmode Widget▲356

   Add a dark-mode to your website in a few seconds 🌓

   2019 · darkmodejs.learn.uno · its alternatives →

6. 6
   Sblack▲288

   Apply a dark theme to Slack for Mac ⚫️ ✨

   2018 · sblack.online · its alternatives →

7. 7
   Night Eye - Dark Mode on any website▲138

   Enable dark mode on any website using your favourite browser

   2019 · nighteye.app · its alternatives →

8. 8
   GitHub Night Mode▲78

   A Chrome extension to experience GitHub in night mode.

   2016 · github.com · its alternatives →

9. 9
   Slack Message Buttons▲611

   Making messages more interactive with buttons

   2016 · slack.com · its alternatives →

10. 10
    NightOwl▲320

    Easily toggle your Macs Dark Mode with this menubar app.

    2019 · nightowlapp.co · its alternatives →

11. 11
    Dark Reader▲299

    Dark theme for every website, care for your eyes

    2018 · darkreader.org · its alternatives →

12. 12
    Midnight Lizard▲124

    Clever night mode for all websites

    2017 · chromewebstore.google.com · its alternatives →

13. 13
    Slack for Mac▲937

    A new, improved Slack desktop app for Mac

    2016 · slack.com · its alternatives →

14. 14
    Slack 4.0▲472

    A snappier, more efficient Slack desktop experience

    2019 · slack.com · its alternatives →

15. 15
    Dark mode comes to Slack desktop▲3

    Slack has released Dark theme for their desktop clients

    2019 · slack.com · its alternatives →

16. 16
    WordPress Dark Mode Plugin▲85

    Add smooth dark mode on your WordPress website

    2021 · nighteye.app · its alternatives →

17. 17
    Facebook Messenger Dark Theme▲80

    A Chrome extension for using Messenger.com at night

    2015 · chromewebstore.google.com · its alternatives →

18. 18
    Darkness▲269

    Dark themes for Google, Facebook and more

    2016 · chromewebstore.google.com · its alternatives →

19. 19
    GitHub Dark▲122

    🔦 GitHub Dark - Browse GitHub in nighttime mode 🌚

    2016 · cquanu.github.io · its alternatives →

20. 20
    Todoist Dark Theme▲315

    Experience a darker side of Todoist

    2018 · todoist.com · its alternatives →

21. 21
    Slack 2.0▲424

    Improvements that make working in Slack easier for everyone

    2020 · its alternatives →

22. 22
    NightScreen Mode▲105

    An amber filter + dark mode to use Chrome without eye strain

    2025 · nightscreenmode.app · its alternatives →

23. 23
    Night Viewer▲93

    Enable dark mode for View Page Source (Chrome/Firefox/Edge)

    2020 · nighteye.app · its alternatives →

24. 24
    Trello Night▲130

    A Chrome extension for using Trello at night 🌚

    2017 · chromewebstore.google.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 →