Top 12 Open-Source Alternatives to Sblack

Product categories

Browser Extension Browsing Experience Chat Communication Dark Mode Design Tools Developer Tools Email Group Chat & Notifications Instant Messaging Messaging Tool

Summary

The top open-source alternatives to Sblack are Slack Themes, Dark Reader, and Stylus. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Slack Themes Landing Page
1

ST

Slack Themes

Make your Slack pretty with custom themes
Pricing:
- Open Source
#Email #Email Clients #Communication 1 social mentions
Dark Reader Landing Page
2

Dark Reader

Reduce eye strain in your browser with this extension that provides a dark theme for browsing.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Developer Tools 183 social mentions
Stylus Landing Page
3

Stylus

EXPRESSIVE, DYNAMIC, ROBUST CSS
Pricing:
- Open Source
#Developer Tools #Browser Extension #Dark Mode 11 social mentions
Stylebot Landing Page
4

Stylebot

Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me
Pricing:
- Open Source
#Browser Extension #Developer Tools #Dark Mode 14 social mentions
midnight-lizard.org
5

Midnight Lizard

Accessible color schemes for all websites
Pricing:
- Open Source
#Browser Extension #Dark Mode #Browsing Experience
Rocket.Chat Landing Page
6

Rocket.Chat

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Chat 65 social mentions
Telegram Landing Page
7

Telegram

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Pricing:
- Open Source
#Communication #Messaging #Instant Messaging 128 social mentions
Violentmonkey Landing Page
8

Violentmonkey

Violentmonkey is a userscript manager to support running userscripts in web pages.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Tool 45 social mentions
Element.io Landing Page
9

Element.io

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
Pricing:
- Open Source
- Free
#Group Chat & Notifications #Communication #Chat 1 social mentions
ShadowFox Landing Page
10

ShadowFox

This project aims at creating a universal dark theme for Firefox while adhering to the modern...
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Browser Extension
Greasemonkey Landing Page
11

Greasemonkey

Customize the way a web page displays or behaves, by using small bits of JavaScript.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Tool 1 social mentions
Signal Landing Page
12

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 180 social mentions