Drop In
A Chrome extension that adds the feature your web app is missing.
2025 · TypeScript · React · Chrome Extension · Claude

Every tool is missing the one feature you actually want. With Drop In you describe it in a sentence and it shows up right on the page as a button or a panel, without anyone touching the app’s source code.

It sits on top of apps like ChatGPT, HubSpot, LinkedIn, and Slack and leans on Claude to build what you asked for. You set what each feature can see or change per site, then push the ones that stick to the rest of your team.

My favorite example is a price tracker dropped straight onto Amazon. Ask for it once and every product page gets a price history chart and a tracking panel, as if they had always been part of the site.