Fast, Flexible and Portable Structured Generation
Star History
Momentum
+48
STARS · LAST 30 DAYS
2
PER DAY
#136
MOST-STARRED C++
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +14 | +48 | +180 |
| Per day | 2 | 2 | 2 |
| Forks gained | +1 | +4 | +11 |
xgrammar gained 48 stars in the last 30 days, about 2 a day, and now has 1.9K. It is about 2 years old and has averaged roughly 968 stars a year. It ranks #136 among C++ repositories and #1,920 across all languages on GitHubRepo.
Trending Record
4
DAYS ON TRENDING
#1067
BEST RANK
Sep 25, 2026
FIRST APPEARANCE
Active
STATUS TODAY
xgrammar has maintained a continuous presence across global trending indexes, peaking at #1067. Below is the 30-day activity profile:
💡 Overview
xgrammar is an open-source project written in C++: Fast, Flexible and Portable Structured Generation.
Engineered for speed, consistency, and developer ease, it solves common hurdles in large-language-models, structured-generation. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C++ for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/mlc-ai/xgrammar.git
cd xgrammar⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C++20 compliant compiler (GCC 11+, Clang 13+, MSVC)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
xgrammar coordinates its core functionality through a modular C++ pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed xgrammar into C++ backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open Apache-2.0 license.
🚀 Getting Started
Install xgrammar using your package manager: `git clone https://github.com/mlc-ai/xgrammar.git`
Initialize your project workspace or configuration file for xgrammar.
Import xgrammar into your codebase or invoke it directly from your terminal.
Execute your test suite or run `xgrammar --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
mlc-ai/xgrammar is currently ranked #1,920 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #1,915 | laravel/dusk | PHP | ★ 1.9K | Compare ↗ |
| #1,916 | AdaptiveCpp/AdaptiveCpp | C++ | ★ 1.9K | Compare ↗ |
| #1,917 | onevcat/Rainbow | Swift | ★ 1.9K | Compare ↗ |
| #1,917 | crazywhalecc/static-php-cli | PHP | ★ 1.9K | Compare ↗ |
| #1,919 | sushi-labs/sushiswap | TypeScript | ★ 1.9K | Compare ↗ |
| #1,920 | mlc-ai/xgrammar This Project | C++ | ★ 1.9K | |
| #1,920 | cloudfoundry/cli | Go | ★ 1.9K | Compare ↗ |
| #1,922 | jeremyevans/rodauth | Ruby | ★ 1.9K | Compare ↗ |
| #1,923 | Shopify/shopify_app | Ruby | ★ 1.9K | Compare ↗ |
| #1,923 | UnrealSharp/UnrealSharp | C# | ★ 1.9K | Compare ↗ |
| #1,925 | yob/pdf-reader | Ruby | ★ 1.9K | Compare ↗ |
Frequently Asked Questions
What does xgrammar do? +
Fast, Flexible and Portable Structured Generation
What language is xgrammar written in? +
The primary language is C++. Topics include: large-language-models, structured-generation.
Is xgrammar actively maintained? +
Yes, the last recorded push was on Sep 24, 2026 with 99 open issues being tracked.
How many stars does xgrammar have? +
xgrammar has 1,936 stars and 217 forks on GitHub.
How does xgrammar rank among GitHub repositories? +
With 1,936 stars, mlc-ai/xgrammar is ranked #1,920 globally across all repositories tracked on GitHubRepo and #136 among C++ projects.
What license is xgrammar distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
