Technology#Web Development📝 BlogAnalyzed: Jan 3, 2026 08:09

Introducing gisthost.github.io

Published:Jan 1, 2026 22:12
1 min read
Simon Willison

Analysis

This article introduces gisthost.github.io, a forked and updated version of gistpreview.github.io. The original site, created by Leon Huang, allows users to view browser-rendered HTML pages saved in GitHub Gists by appending a GIST_id to the URL. The article highlights the cleverness of gistpreview, emphasizing that it leverages GitHub infrastructure without direct involvement from GitHub. It explains how Gists work, detailing the direct URLs for files and the HTTP headers that enforce plain text treatment, preventing browsers from rendering HTML files. The author's update addresses the need for small changes to the original project.

Reference

The genius thing about gistpreview.github.io is that it's a core piece of GitHub infrastructure, hosted and cost-covered entirely by GitHub, that wasn't built with any involvement from GitHub at all.