Top 7 Open-Source Alternatives to 30 Seconds of Knowledge

Product categories

Browser Extension Browsing Experience Cryptocurrency Dark Mode Design Tools Developer Tools Monitoring Tools Tool

Summary

The top open-source alternatives to 30 Seconds of Knowledge are User-Agent Switcher and Manager, Greasemonkey, and Stylebot. 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.

User-Agent Switcher and Manager Landing Page
1

User-Agent Switcher and Manager

spoofs browser's User-Agent string.
Pricing:
- Open Source
#Monitoring Tools #Browser Extension #Dark Mode 3 social mentions
Greasemonkey Landing Page
2

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
Stylebot Landing Page
3

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
Vytal Landing Page
4

Vytal

Check if your location is actually hidden.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Developer Tools 1 social mentions
Stylus Landing Page
5

Stylus

EXPRESSIVE, DYNAMIC, ROBUST CSS
Pricing:
- Open Source
#Developer Tools #Browser Extension #Dark Mode 11 social mentions
Violentmonkey Landing Page
6

Violentmonkey

Violentmonkey is a userscript manager to support running userscripts in web pages.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Tool 45 social mentions
Dark Reader Landing Page
7

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