Top 9 Open-Source Alternatives to 30 Seconds of Knowledge

30 Seconds of Knowledge

Become a better developer, in every new tab.

3 mentions

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Product categories

Browser Extension Browsing Experience Dark Mode Design Tools Developer Tools Frameworks (Full Stack) Monitoring Tools PHP Web Framework Productivity Security & Privacy Tool Web Frameworks

Summary

The top open-source alternatives to 30 Seconds of Knowledge are User-Agent Switcher and Manager, Greasemonkey, and Vytal. 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
Vytal Landing Page
3

Vytal

Check if your location is actually hidden.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Developer Tools 1 social mentions
React Complex Tree Landing Page
4

RCT

React Complex Tree

Unopinionated accessible tree component with drag and drop
Pricing:
- Open Source
#Developer Tools #Design Tools #Productivity 2 social mentions
Violentmonkey Landing Page
5

Violentmonkey

Violentmonkey is a userscript manager to support running userscripts in web pages.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Developer Tools 45 social mentions
CodeIgniter Landing Page
6

CodeIgniter

A Fully Baked PHP Framework
Pricing:
- Open Source
#PHP Web Framework #Web Frameworks #Frameworks (Full Stack) 8 social mentions
Stylus Landing Page
7

Stylus

EXPRESSIVE, DYNAMIC, ROBUST CSS
Pricing:
- Open Source
#Developer Tools #Browser Extension #Design Tools 11 social mentions
Dark Reader Landing Page
8

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 185 social mentions
Stylebot Landing Page
9

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