HackerBooks launched to list books discussed on HN, links to HN comments and cover images included
SUMMARY
HackerBooks, introduced in a Show HN thread, aggregates books mentioned on Hacker News into a browsable list. The site includes links to the HN comments where each book was mentioned and cover images, and handles a dataset on the order of 16,000 books. The post earned 887 points and 80 comments. The developer says the site uses static JSON hosted on Cloudflare with R2 for covers and a data pipeline built with Python and DuckDB. Users praised fast loading and search, and reported bugs around filters and comment display.
HackerBooks is a site that aggregates books mentioned on Hacker News and makes them browsable. Each book page includes a link to the comment on HN where the book was mentioned, and the homepage shows a daily shuffled selection of books. The Show HN post has gathered 887 points and 80 comments.
According to the developer, the site is built with plain JavaScript and static JSON files: the first load fetches a roughly 30KB top index, and the full list of 16,000 items is loaded in the background. Hosting is on Cloudflare with HTTP/3 support, cover images are stored in R2, and the data pipeline is generated from an HN dump using Python and DuckDB.
In the comments many users praised the site’s speed, while others pointed out bugs such as the “mentions since” filter not working as intended and the “Show more comments” button functioning only once. The developer replied that the filter has been changed to “first-mentioned date” and that the number of comments shown will be limited to 30 for the time being.
HN users also asked about technical implementation details—HTTP/3, OpenGraph, Cloudflare, and the effectiveness of a local search index—and the developer provided a brief explanation of caching policy and how the data is generated. The developer also acknowledged that parts of the post were drafted with the help of a generative assistant (Claude) and mentioned plans for future improvements and bug fixes.
- #Hacker News
- #book list
- #web technology
Source
Hacker News (Show HN スレッド) — https://news.ycombinator.com/item?id=50326821This article summarizes the content of the source below. Refer to the original source for accuracy. Last updated: November 2, 2026
Was this article helpful?
Written & reviewed

Reviewed byYutaro SasaoFounder & CEO, MediaLeap Inc.
CEO of MediaLeap Inc. Working on both sides of web advertising and web media since 2013; founded the company in May 2025.
Review scope: cross-checking against primary sources (official and government announcements), verifying claims stay within the facts, and checking source attribution。Last reviewed:
Written by:Leak Watch editorial team (AI-assisted drafts verified against sources by the editorial team) · Reviewer profile · Request a correction