30 Seconds of Knowledge
Don't let your engineering brain rot in the age of AI. 30 Seconds of Knowledge delivers one real code snippet on every new tab - read it, get it, stay sharp in 30 seconds.
30 Seconds of Knowledge launched on February 6, 2019 with 254 votes, #57 of 3,290 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 7 years on.
In plain words
30 Seconds of Knowledge is a browser extension that displays code snippets and programming concepts whenever a user opens a new tab. Designed for developers wanting to improve their skills, the tool lets users select which programming languages to focus on and presents bite-sized lessons readable in about 30 seconds each. Users can copy useful code snippets directly into their projects. The extension transforms routine browser activity into continuous learning opportunities across multiple programming languages.
written from the facts on this page · September 2026
From the sources
Gain new developer skills every time you open a New Tab! Choose which programming languages you want to get better at in options and get smarter every time you open a New Tab. All you need is 30 seconds to read and understand snippets of code and improve your knowledge. Saw something useful? Just copy/paste it into your code and you're golden!
AI writes the code. You forget how it works . Every new tab, read one real code snippet and stay sharp — in 30 seconds or less. git restore --staged <pathspec> # Examples git restore --staged "30seconds.txt" # Remove the file from the staging area git restore --staged . # Remove all changes from the staging area // your brain is a muscle 30 Seconds of Knowledge is a browser extension that replaces your blank new tab with one real code snippet to read - a language feature, a framework pattern, an interview answer. No course to finish, no streak to babysit. Just one small rep, every tab - the fundamentals stay in your head, not just in the autocomplete. One snippet per new tab. One rep for…from 30secondsofknowledge.com
Does a similar job
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30 seconds of code2020 · 30secondsofcode.org · ▲337Short code snippets for all your development needs
30 seconds of code2018 · github.com · ▲252JS snippets that you can understand in 30 seconds or less.
- LPLearn Programming Basics in 40 Minutes2020 · nbasic.net · ▲41
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