👋 Welcome to XGrammar

XGrammar is open-source solution for flexible, portable, and fast structured generations. The mission of this project is to bring flexible zero-overhead structure generation everywhere.

Get Started

• Installation
• Quick Start

Tutorials

• Constrained Decoding
• Workflow of XGrammar
• Advanced Topics
• Integration with LLM Engine
• JSON Generation
• EBNF-Guided Generation

XGrammar Features

• Runtime Safeguards
• JavaScript API

Developer Guide

• Building Docs
• Code Coverage

API Reference

• XGrammar Python API