Pure mathematicscourse
Documented HN sourceHN 25.0
Quick Take
HN's go-to recommendation for learning linear algebra intuition, repeatedly credited with making concepts click and complementing textbooks.
Independent HackerTube guide & curated explorer
HackerTube videos recommended by Hacker News.
Explore 64 source-attributed editor's picks from Andrej Karpathy's HackerTube project, with the original HN discussion, concise context, and a calmer way to choose what to watch.
HackerTube Explorer is an independent third-party guide, not the official HackerTube. The official catalogue contains 6,454 videos; this site intentionally presents a smaller verified selection.
Creator
Andrej Karpathy
Official catalogue
6,454
HN comments
39,834
Topics
150
Discover
Worth your next hour
A source-conscious catalogue for browsing deliberately. Each recommendation retains a direct link to its documented Hacker News discussion.
Functional programmingtalk
Documented HN sourceHN 22.5
Quick Take
HN recommends it repeatedly as one of the best and most entertaining programming talks, and as the talk that makes the Y combinator click, even for people who do not use Ruby.
Semiconductors & chip manufacturingtalk
Documented HN sourceHN 22.0
Quick Take
HN repeatedly calls it the best in-depth introduction to IC manufacturing, a sense-of-awe talk by an independent engineer, while wishing for an updated version.
University lectures & courseslecture
How to Speak
MIT OpenCourseWare
Documented HN sourceHN 21.0
Quick Take
HN treats it as the canonical, near-universally recommended lecture on giving talks and presentations.
Browse deliberately
Explore by topic
Algorithms & data structures
A HackerTube topic in Mathematics & Theoretical CS.
1 video in catalogue
Software architecture & design
A HackerTube topic in Software Engineering & Languages.
1 video in catalogue
Audio & video engineering
A HackerTube topic in Hardware & Electronics.
1 video in catalogue
Productivity & self-improvement
A HackerTube topic in Ideas, Learning & Language.
1 video in catalogue
Data visualization & information design
A HackerTube topic in AI, Machine Learning & Data.
2 videos in catalogue
Game design
A HackerTube topic in Games & Game Development.
1 video in catalogue
US politics & elections
A HackerTube topic in Politics, History & Society.
1 video in catalogue
Labor, work & inequality
A HackerTube topic in Business, Startups & Economics.
1 video in catalogue
Methodology
How are videos selected for HackerTube Explorer?
HackerTube Explorer is an independent guide, not the official catalogue. We present a smaller, source-attributed selection so visitors can inspect the Hacker News discussion behind a recommendation before deciding what to watch.
- 1. Start with public source data. Entries originate in HackerTube's public catalogue and retain their documented discussion context.
- 2. Preserve the source link. Each featured video links back to its original Hacker News discussion rather than treating a mention as an endorsement.
- 3. Label the relationship clearly. Creator-reported claims and this site's independent status are stated plainly.
Editorial shelves
Start with a collection
Curated collection
Mathematical intuition
A focused way into visual explanations and enduring mathematical ideas.
Curated collection
Systems and software
Foundational talks about software, computing, and how complex systems are made.
Curated collection
Science in context
Videos that make technical ideas legible without stripping away their complexity.
What is HackerTube?
A community-built alternative to the algorithmic feed.
Karpathy's project turns years of Hacker News recommendations into a browsable video library. Learn what HackerTube is, why it appeared now, and how this independent Explorer relates to it.
Built with Claude, directed by Karpathy
Karpathy says Claude filtered Hacker News comments, identified real video recommendations, organized the results, and built the product in about two hours.
Read the build storySources stay visible
Every video in this selection retains a direct Hacker News discussion link. A mention is not treated as an endorsement, and creator-reported claims remain clearly labeled.
Read the methodology