Kreuzberg

Kreuzberg v4 LTS (legacy)

This is the long-term-support line for Kreuzberg v4. Active development has moved to Xberg (v5+). v4 receives LTS fixes until the end of 2026 (best effort). See v4 LTS & Migration.

Why Kreuzberg

High performance

Rust core with native PDFium, SIMD optimizations, and full parallelism. Process thousands of documents per minute without a GPU.

97+ file formats

PDF, DOCX, XLSX, PPTX, images, HTML, XML, emails, archives, and academic formats — one API handles them all.

Multi-engine OCR

Tesseract and PaddleOCR work across all language bindings. EasyOCR is available for Python.

12 language bindings

Native bindings for Python, TypeScript, Rust, Go, Java, C#, Ruby, PHP, Elixir, R, C, and WebAssembly.

Code intelligence

Extract functions, classes, imports, symbols, and docstrings from 248 programming languages, with semantic chunking.

Flexible deployment

Use as a library, CLI tool, REST API server, MCP server, or Docker container. Pick what fits your stack.

See all features →

Language support

Precompiled binaries for Linux (x86_64 & aarch64), macOS (Apple Silicon), and Windows (x64).

Language	Package	Docs
Python	pip install kreuzberg	API Reference
TypeScript (Native)	npm install @kreuzberg/node	API Reference
TypeScript (WASM)	npm install @kreuzberg/wasm	API Reference
Rust	cargo add kreuzberg	API Reference
Go	go get .../kreuzberg-lts/v4	API Reference
Java	Maven Central dev.kreuzberg:kreuzberg	API Reference
C#	dotnet add package Kreuzberg	API Reference
Ruby	gem install kreuzberg	API Reference
PHP	composer require kreuzberg/kreuzberg	API Reference
Elixir	{:kreuzberg, "~> 4.0"}	API Reference
R	r-universe kreuzberg	API Reference
C (FFI)	Shared library + header	API Reference
CLI	brew install kreuzberg-dev/tap/kreuzberg	CLI Guide
Docker	ghcr.io/kreuzberg-dev/kreuzberg-full	Docker Guide

Choosing between TypeScript packages

@kreuzberg/node — Use for Node.js servers and CLI tools. Native performance (100% speed).

@kreuzberg/wasm — Use for browsers, Cloudflare Workers, Deno, Bun, and serverless environments (60–80% speed, cross-platform).

Quick example

Python

main.py

from kreuzberg import extract_file_sync

result = extract_file_sync("document.pdf")
print(result.content)

TypeScript

index.ts

import { extractFileSync } from "@kreuzberg/node";

const result = extractFileSync("document.pdf");
console.log(result.content);

Rust

src/main.rs

use kreuzberg::{extract_file_sync, ExtractionConfig};

let config = ExtractionConfig::default();
let result = extract_file_sync("document.pdf", None, &config)?;
println!("{}", result.content);

Part of Xberg.io

XbergDocument intelligence: text, tables, metadata from 91+ formats with optional OCR.

Xberg EnterpriseManaged extraction API with SDKs, dashboards, and observability.

crawlbergWeb crawling and scraping with HTML→Markdown and headless-Chrome fallback.

html-to-markdownFast, lossless HTML→Markdown engine.

liter-llmUniversal LLM API client with native bindings for 14 languages and 143 providers.

tree-sitter-language-packTree-sitter grammars and code-intelligence primitives.

alefThe polyglot binding generator that produces every per-language binding across the 5 polyglot repos.

Explore the docs

Get StartedInstall Kreuzberg and extract your first document in minutes.

GuidesConfiguration, OCR setup, Docker deployment, plugins, and more.

ConceptsArchitecture, the extraction pipeline, MIME detection, and the plugin system.

ReferencePer-language API docs, the configuration schema, type catalogue, and error matrix.

CLI & ServersThe Kreuzberg CLI, REST API server, and MCP server for AI agents.

v4 LTS & MigrationThe v4 support policy and how to migrate to Xberg (v5+).

Getting help

• Bugs & feature requests — Open an issue on GitHub
• Community chat — Join the Discord
• Contributing — Read the contributor guide