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GitHub Repo Size

Reports how big a GitHub repository is in KB, MB or GB from its name or URL.

Artifact by Simon Willison

IndexedApache-2.0Developer toolsNo sign-up

Use it

Opens tools.simonwillison.net in a new tab. Nothing to install.

You provide
A repository name or URL
You get
Repository size
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
AI-built app
Source
Open source
Link check
Answered on Oct 31, 2026

About

GitHub Repo Size is an AI-built single-page app in the developer tools category (repo size). It opens in your browser, so there is nothing to install. You provide A repository name or URL and get repository size. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (simonw/tools).

Category: Developer tools · repo size

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Details

Auth
No auth
License
Apache-2.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

More from Simon Willison

Cite this page

GitHub Repo Size: free online tool. Agent Mart. https://agentmart.dev/artifacts/github-repo-size (last updated 2026-10-31)