# LibreTranslate

[Try it online!](https://libretranslate.com) | [API Docs](https://libretranslate.com/docs)

[![Publish to DockerHub](https://github.com/uav4geo/LibreTranslate/workflows/Publish%20to%20DockerHub/badge.svg)](https://hub.docker.com/r/libretranslate/libretranslate) ![Publish to GitHub Container Registry](https://github.com/uav4geo/LibreTranslate/workflows/Publish%20to%20GitHub%20Container%20Registry/badge.svg)

Free and Open Source Machine Translation API, entirely self-hosted. Unlike other APIs, it doesn't rely on proprietary providers such as Google or Azure to perform translations.

![image](https://user-images.githubusercontent.com/1951843/102724116-32a6df00-42db-11eb-8cc0-129ab39cdfb5.png)

[Try it online!](https://libretranslate.com) | [API Docs](https://libretranslate.com/docs)

## API Examples

Request:

```javascript
const res = await fetch("https://libretranslate.com/translate", {
	method: "POST",
	body: JSON.stringify({
		q: "Hello!",
		source: "en",
		target: "es"
	}),
	headers: {
		"Content-Type": "application/json"
	});

console.log(await res.json());
```

Response:

```javascript
{
    "translatedText": "¡Hola!"
}
```


## Build and Run

You can run your own API server in just a few lines of setup!

Make sure you have installed Python (3.8 or higher), then simply issue:

```bash
git clone https://github.com/uav4geo/LibreTranslate --recurse-submodules
cd LibreTranslate
pip install -r requirements.txt
python main.py [args]
```

Then open a web browser to http://localhost:5000

### Run with Docker

Simply run:

```bash
docker run -ti --rm -p 5000:5000 libretranslate/libretranslate
```

Then open a web browser to http://localhost:5000

### Build with Docker

Make sure you cloned the `models` submodule before building the Docker image:

```bash
docker build -t libretranslate .
```

Run the built image:

```bash
docker run -it -p 5000:5000 libretranslate [args]
```

Or build and run using `docker-compose`:

```bash
docker-compose up -d --build
```

> Feel free to change the [`docker-compose.yml`](https://github.com/uav4geo/LibreTranslate/blob/main/docker-compose.yml) file to adapt it to your deployment needs, or use an extra `docker-compose.prod.yml` file for your deployment configuration.

## Arguments

| Argument      | Description                    | Default              |
| ------------- | ------------------------------ | -------------------- |
| --host        | Set host to bind the server to | `127.0.0.1`          |
| --port        | Set port to bind the server to | `5000`               |
| --char-limit        | Set character limit | `No limit`               |
| --req-limit        | Set maximum number of requests per minute per client | `No limit`               |
| --ga-id        | Enable Google Analytics on the API client page by providing an ID | `No tracking`               |
| --debug      | Enable debug environment | `False`           |
| --ssl        | Whether to enable SSL | `False`               |
| --frontend-language-source | Set frontend default language - source | `en`          |
| --frontend-language-target | Set frontend default language - target | `es`          |


## Roadmap

Help us by opening a pull request!

- [x] A docker image (thanks [@vemonet](https://github.com/vemonet) !)
- [ ] Auto-detect input language
- [ ] User authentication / tokens
- [ ] Language bindings for every computer language

## Credits

This work is largely possible thanks to [Argos Translate](https://github.com/argosopentech/argos-translate), which powers the translation engine.

## License

[GNU Affero General Public License v3](https://www.gnu.org/licenses/agpl-3.0.en.html)