https://github.com/kreuzberg-dev/alef

Generate fully-typed, lint-clean language bindings for Rust libraries across 11 languages
https://github.com/kreuzberg-dev/alef

bindgen c c-ffi code-generation csharp elixir ffi golang java language-bindings napi-rs php polyglot pyo3 python r ruby rust typescript wasm

Last synced: 15 days ago
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Generate fully-typed, lint-clean language bindings for Rust libraries across 11 languages

• Host: GitHub
• URL: https://github.com/kreuzberg-dev/alef
• Owner: kreuzberg-dev
• License: mit
• Created: 2026-03-31T17:01:28.000Z (2 months ago)
• Default Branch: main
• Last Pushed: 2026-05-03T11:36:04.000Z (about 1 month ago)
• Last Synced: 2026-05-03T11:38:44.474Z (about 1 month ago)
• Topics: bindgen, c, c-ffi, code-generation, csharp, elixir, ffi, golang, java, language-bindings, napi-rs, php, polyglot, pyo3, python, r, ruby, rust, typescript, wasm
• Language: Rust
• Homepage:
• Size: 10.7 MB
• Stars: 21
• Watchers: 0
• Forks: 4
• Open Issues: 15
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Codeowners: .github/CODEOWNERS

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README

          
[![License](https://img.shields.io/badge/license-MIT-blue)](LICENSE)

[![Crates.io](https://img.shields.io/crates/v/alef)](https://crates.io/crates/alef)

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[![Built with alef](https://img.shields.io/badge/built%20with-alef%20%D7%90-007ec6)](https://github.com/kreuzberg-dev/alef)

# alef

Polyglot binding generator for Rust libraries. alef generates complete language bindings from a single source-of-truth configuration, targeting 18 languages: Python, TypeScript/Node, WebAssembly, C FFI, Ruby, PHP, Elixir, R, Go, Java/JNI, Kotlin, Kotlin Android, C#, Dart, Gleam, Swift, Zig, and Brew CLI.

## Install

```shell

cargo install alef --locked

```

## Quick start

```shell

alef generate              # Generate all configured bindings

alef e2e generate         # Generate end-to-end test suites

alef readme               # Generate README templates for each language

```

See the [full documentation](https://docs.alef.kreuzberg.dev) for configuration, CLI reference, and architecture.

## Ecosystem

- [Kreuzberg](https://github.com/kreuzberg-dev/kreuzberg) — document intelligence: text, tables, metadata from 91+ formats with optional OCR.

- [Kreuzberg Cloud](https://github.com/kreuzberg-dev/kreuzberg-cloud) — managed extraction API with SDKs, dashboards, and observability.

- [kreuzcrawl](https://github.com/kreuzberg-dev/kreuzcrawl) — web crawling and scraping with HTML→Markdown and headless-Chrome fallback.

- [html-to-markdown](https://github.com/kreuzberg-dev/html-to-markdown) — fast, lossless HTML→Markdown engine.

- [liter-llm](https://github.com/kreuzberg-dev/liter-llm) — universal LLM API client with native bindings for 14 languages and 143 providers.

- [tree-sitter-language-pack](https://github.com/kreuzberg-dev/tree-sitter-language-pack) — tree-sitter grammars and code-intelligence primitives.

## License

MIT