Good videos, with context.

HackerTube. Ideas worth watching.

Discover talks, tutorials and unexpected rabbit holes recommended on Hacker News. Browse by topic, follow the discussion, and save something worth your time.

6,454videos to discover
Worth settling in for

Neural networks,
built from the ground up.

Andrej Karpathy's first Neural Networks: Zero to Hero lecture, which builds micrograd, a tiny autograd engine, from scratch in Python. It explains backpropagation and neural network training step by step, assuming only basic Python and some high-school calculus.

Andrej Karpathy · 17 HN recommenders
Read the discussion ↗

Recommended again and again

Lasting recommendations from the Hacker News archive

Explore all videos ↗

Find your next rabbit hole on HackerTube

A good recommendation deserves more than a passing link. This library brings together conference talks, visual explanations, engineering deep dives and documentaries that people have shared on Hacker News. Start with a subject you know, or follow a connection into something entirely new.

Recommendations with a trail

Every video has a page with a summary, its topic and the original discussion. Follow the Hacker News links to see the context for yourself. The recommender count describes people in the source dataset, rather than likes or views on this website.

Our discovery order uses the source dataset’s recommendation score, which reflects recurring recommendations over time. It is a useful starting point for exploration, not an objective measure of a video’s quality or accuracy.

A video library for curious people

Explore functional programming, visual mathematics, machine learning, science and the craft of making things. Browse all topics for focused collections, or search by title, creator and subject across the complete library.

Make room for a longer idea

Save a talk to Watch later and come back when you have time. Your saved list and recently opened videos stay in this browser, with no account required. Click Play to load the YouTube player; there is also a direct YouTube link when an embed is unavailable.

This is an independent edition built from the open HackerTube dataset. Summaries and labels were generated by AI and may contain mistakes. Original videos remain with their creators; attribution and data sources are available for every reader.

HackerTube, explained

What is HackerTube?

HackerTube is a browsable collection of YouTube videos linked and recommended in Hacker News discussions. This independent .run edition uses the original project’s open dataset, with its own interface and static pages.

Can I watch videos here for free?

Browsing and saving videos do not require an account or payment. Videos play through YouTube’s privacy-enhanced embed after you press Play. Availability, regional restrictions and advertising are controlled by YouTube and the video owner.

Where do the recommendations come from?

The October 31, 2026 public export contains 6,454 video records and 39,834 labelled Hacker News comments. It is an archive snapshot, not a live feed. Visit each video page for original discussion links, and the About page for licensing details.

Can I upload a video or sync my saved list?

This edition is a discovery library. It does not accept uploads or provide accounts. Watch later and history are stored on this device in browser storage and do not sync between devices.