I built a client-side GitHub repo comparator

I wanted to compare star growth between a few repos and couldn't find a tool that did it the way I wanted, so I built one.

Most existing tools have a backend that proxies requests to the GitHub API, which means your token goes through someone else's server. They also don't cache results, so if you look up the same repo twice you're burning rate limit both times. And they're mostly single-metric viewers.

This tool is entirely client-side. Your GitHub token goes directly from your browser to the GitHub API, no backend.

Results are cached in the browser so repeat lookups are instant You can search for repos by name or paste a URL, add multiple repos, and compare their star history and contributions overlaid on the same chart. You don't need an account to use it. If you have a GitHub token you can use that to raise your rate limit,it's optional but highly recommended for basic use.