Simon Willison Releases GitHub Repo Size Lookup Tool

Summary

Simon Willison published a small browser-based tool that retrieves GitHub repository sizes via the public, CORS-friendly GitHub API. The tool allows users to paste a repository name and instantly see its size — for example, simonw/datasette is reported at 8.1 MB. GitHub does not surface repository size in its standard web UI, so this fills a minor gap. The tool is hosted on Willison's tools.simonwillison.net site, which typically showcases lightweight utilities often built with AI-assisted work