Drop in is a Chrome extension that enables users to add custom features and integrations to any web application they use. Instead of waiting for vendor updates or writing custom scripts, users can describe their desired functionality in plain English, and Drop in builds it directly into the web page interface.

The product allows users to add features like export buttons, dark mode toggles, smart reply suggestions, and custom filter controls. It integrates with tools such as HubSpot, Airtable, and Notion to move real data between applications. Features persist across sessions and can be organized per website, with users maintaining control over what each feature can access.

Users simply describe their needs in plain English, such as "Add an 'Add to HubSpot' button here" or "Create a qualification view in this CRM." Drop in then builds these features directly into the web page interface. The extension works by adding a visual layer on top of existing web applications without modifying the underlying product.

The benefits include eliminating the need to wait for vendor updates or write custom code, enabling faster workflow automation across multiple tools. Use cases include adding open roles information to HubSpot company cards, exporting ChatGPT conversations, implementing quick reply suggestions in messaging platforms, and creating lead collection buttons on Google Maps.

The product targets users of web applications who want to customize their tools without coding knowledge. It works with any web app that runs in a browser, with specific optimization for popular tools like ChatGPT, HubSpot, and LinkedIn. Team features allow sharing and standardizing UI improvements across organizations.