Reachat

Reachat is an open source library of user interface building blocks for chat and LLM interfaces in ReactJS. It lets developers add a conversational interface to an application without building custom chat components from scratch, and the project's pitch is that a chat experience can be built in hours rather than weeks. The library is not tied to any backend or language model, so it can be used with whatever model or service the developer chooses. It supports switching between models or using several in one interface. The components are customizable through theming and options, and cover rich media such as file uploads, embeds and markdown formatting. The API is described as intuitive but flexible. Getting started takes three steps: install the package with npm, include it in a project, and connect a backend. Documentation and a Storybook of component demos are provided, and a community is available for support. The vendor says Reachat is used in production across dozens of enterprise products. It is aimed at front end developers building AI chat features. Reachat is free to use in personal and commercial projects, and no paid plans are listed.