tree-sitter-language-pack

A comprehensive collection of tree-sitter language parsers with polyglot bindings

Overview

tree-sitter-language-pack bundles 248+ tree-sitter language parsers into a single package with native bindings for multiple programming languages. Ship syntax analysis in your application without managing individual parser dependencies.

Architecture

tree-sitter-language-pack/
├── crates/
│   ├── ts-pack-core/       # Rust core library
│   ├── ts-pack-python/     # Python (maturin/PyO3) bindings
│   ├── ts-pack-node/       # Node.js (NAPI-RS) bindings
│   ├── ts-pack-java/       # Java (Panama FFI) bindings
│   ├── ts-pack-elixir/     # Elixir (Rustler NIF) bindings
│   ├── ts-pack-ffi/        # C-compatible FFI library
│   └── ts-pack-cli/        # CLI tool
├── packages/
│   └── go/v1/              # Go (cgo) bindings
├── grammars/               # Tree-sitter grammar sources
└── scripts/                # Build and maintenance scripts

Quick Start

Rust

cargo add ts-pack-core

See Rust README for full documentation.

Python

pip install tree-sitter-language-pack

uv add tree-sitter-language-pack

See Python README for full documentation.

Node.js

npm install @kreuzberg/tree-sitter-language-pack

pnpm add @kreuzberg/tree-sitter-language-pack

yarn add @kreuzberg/tree-sitter-language-pack

See Node.js README for full documentation.

Go

go get github.com/kreuzberg-dev/tree-sitter-language-pack/packages/go/v1

See Go README for full documentation.

Java

<dependency>
  <groupId>dev.kreuzberg</groupId>
  <artifactId>tree-sitter-language-pack</artifactId>
  <version>1.4.1</version>
</dependency>

implementation("dev.kreuzberg:tree-sitter-language-pack:1.4.1")

See Java README for full documentation.

Elixir

{:tree_sitter_language_pack, "~> 1.0"}

See Elixir README for full documentation.

Ruby

gem install tree_sitter_language_pack

See Ruby README for full documentation.

WebAssembly

npm install @kreuzberg/tree-sitter-language-pack-wasm

pnpm add @kreuzberg/tree-sitter-language-pack-wasm

yarn add @kreuzberg/tree-sitter-language-pack-wasm

See WebAssembly README for full documentation.

PHP

composer require kreuzberg/tree-sitter-language-pack

See PHP README for full documentation.

.NET (C#)

dotnet add package TreeSitterLanguagePack

See .NET (C#) README for full documentation.

C/C++ (FFI)

Build from source as part of this workspace.

See C/C++ (FFI) README for full documentation.

CLI

cargo install ts-pack

See CLI README for full documentation.

Core API

All bindings expose a unified process() function for extracting structured intelligence from source code:

Language	Function
Rust	`ts_pack_core::process(source, &config)`
Python	`process(source, ProcessConfig(...))`
Node.js	`process(source, { language: '...' })`
Go	`registry.Process(source, config)`
Java	`registry.process(source, configJson)`
Ruby	`TreeSitterLanguagePack.process(source, configJson)`
Elixir	`TreeSitterLanguagePack.process(source, configJson)`
WASM	`process(source, { language: '...' })`
C FFI	`ts_pack_process(registry, source, len, configJson)`

The process() function returns structured analysis including functions, classes, imports, comments, and optionally chunked source segments.

Features

Feature	Description
248+ Languages	Pre-compiled parsers for 248+ programming languages
On-Demand Downloads	Parsers are downloaded on-demand and cached locally for fast reuse
Selective Installation	Download only the languages you need; unused parsers never downloaded
Polyglot Bindings	Native bindings for Rust, Python, Node.js, Go, Java, Elixir, and C/C++
Automatic Caching	Downloaded parsers cached in platform-specific directories for offline use
Feature Groups	Curated language sets: `web`, `systems`, `scripting`, `data`, `jvm`, `functional`

Supported Languages

This pack includes 248+ languages. See the full language list for all supported grammars with extensions and repository links.

Package READMEs

Rust -- Rust core library providing access to 248 tree-sitter parsers with on-demand download and caching support.
Python -- Python bindings for tree-sitter-language-pack, providing access to 248 pre-compiled tree-sitter parsers with on-demand downloads.
Node.js -- Node.js NAPI bindings for tree-sitter-language-pack with on-demand parser downloads.
Go -- Go bindings for tree-sitter-language-pack with on-demand parser caching.
Java -- Java bindings for tree-sitter-language-pack with on-demand parser downloads (JDK 22+).
Elixir -- Elixir bindings for tree-sitter-language-pack with on-demand parser downloads.
Ruby -- Ruby bindings for tree-sitter-language-pack with on-demand parser downloads.
WebAssembly -- WebAssembly bindings for tree-sitter-language-pack. Includes a curated subset of 30 languages optimized for browser and edge runtimes. For all 248 languages, use native bindings (Python, Node.js, etc.).
PHP -- PHP extension via ext-php-rs with on-demand parser downloads.
.NET (C#) -- .NET P/Invoke bindings with on-demand parser downloads.
C/C++ (FFI) -- C-compatible FFI bindings for tree-sitter-language-pack. Use from any language with C interop.
CLI -- Command-line tool for managing tree-sitter language parsers with download utilities.

Contributing

Contributions are welcome! See CONTRIBUTING.md for guidelines.

Join our Discord community for questions and discussion.

License

MIT -- see LICENSE for details.

All included tree-sitter grammars are permissively licensed (MIT, Apache-2.0, BSD, ISC, or similar). Copyleft licenses (GPL, AGPL, LGPL, MPL) are not accepted. See CONTRIBUTING.md for grammar inclusion criteria.