Prompto

Overview

Prompto is an open‑source Angular PWA that lets users interact with multiple LLMs via LangChain.js, adjusting temperature for creativity. It supports chat, notebook, template, arena, and discussion modes, storing all settings and history locally for privacy.

From the official site

Prompto is an open-source web application designed to make interacting with LLMs simple and efficient.

The text above is quoted from this tool’s official website — the vendor’s own words.

How to use it

1. Register at prompto.asanchez.dev and read the quick-start documentation
2. Create a test project and run the first example end to end
3. Adjust parameters and invocation patterns to fit your requirements
4. Once stable, connect it to production with error handling and rate limiting