---
title: Build with Theta Docs
description: >-
  Theta is an open source tool to streamline app creation and testing with
  dynamic UIs, without the need for rebuilding.
redirect: https://docs.buildwiththeta.com/en
---
> ## Documentation Index
> Fetch the complete documentation index at: https://docs.buildwiththeta.com/llms.txt
> Use this file to discover all available pages before exploring further.

<img src="https://raw.githubusercontent.com/buildwiththeta/buildwiththeta/main/docs/assets/website_cover.jpg" width="400" alt="Theta cover"/>

# Build with Theta
[Theta](https://buildwiththeta.com) is an open source tool to streamline app creation and testing with dynamic UIs, without the need for rebuilding.