Lingarr: Subtitle Translation Made Easy

May 24, 2026 · View on GitHub

Warning

Pull requests are temporarily closed due to a major change currently in development

Lingarr is an application that leverages translation technologies to automatically translate subtitle files to your desired target language. With support for multiple translation services including LibreTranslate, DeepL, and various AI providers, Lingarr offers a flexible solution for all your subtitle translation needs.

https://github.com/user-attachments/assets/be753d77-ca53-4867-adea-363145613d2b

🌟 Multiple Translation Service Support

Lingarr now offers multiple services for automated translation:

LibreTranslate
Local AI (with Ollama, or any other OpenAPI compatible model/router)
DeepL (without pt-BR)
Anthropic
OpenAI
DeepSeek
Gemini
Google
Bing
Yandex
Azure

Choose the service that best fits your needs.

Usage

Docker Image Tags

Lingarr provides multi-architecture Docker images that automatically select the correct platform:

Tag	Description	Architectures
`latest`	Latest stable release	`amd64` `arm64`
`1.2.3`	Specific version	`amd64` `arm64`
`main`	⚠️ Development build from main branch	`amd64` `arm64`

Note: As of 1.0.3 all images support both AMD64 (Intel/AMD) and ARM64 (Raspberry Pi, Apple Silicon) architectures. Docker will automatically pull the correct architecture for your system.

Available Registries

Lingarr Docker images are available from multiple registries:

Registry	Image
GitHub Container Registry	`ghcr.io/lingarr-translate/lingarr:latest`
Docker Hub	`docker.io/lingarr/lingarr:latest`

Setting up Lingarr

By default, Lingarr uses MySQL however, PostgreSQL and SQLite are also supported. Note that Lingarr starts quickly, if migrations fail, using a healthcheck combined with depends_on is recommended.

services:
  lingarr:
    image: ghcr.io/lingarr-translate/lingarr:latest # or lingarr/lingarr:latest
    container_name: lingarr
    restart: unless-stopped
    environment:
      - ASPNETCORE_URLS=http://+:9876
      - DB_CONNECTION=mysql
      - DB_HOST=lingarr-db
      - DB_PORT=3306
      - DB_DATABASE=lingarr
      - DB_USERNAME=lingarr
      - DB_PASSWORD=your-password # provide a password
    ports:
      - "9876:9876"
    volumes:
      - /path/to/media/movies:/movies
      - /path/to/media/tv:/tv
      - /path/to/config:/app/config
    networks:
      - lingarr
    depends_on:
      lingarr-db:
        condition: service_healthy

  lingarr-db:
    image: mariadb:latest
    container_name: lingarr-db
    restart: unless-stopped
    environment:
      - MYSQL_DATABASE=lingarr
      - MYSQL_USER=lingarr
      - MYSQL_PASSWORD=your-password # provide a password
      - MYSQL_ROOT_PASSWORD=your-password # provide a root password
    volumes:
      - /path/to/db:/var/lib/mysql # define a volume to persist the database
    networks:
      - lingarr
    healthcheck:
      test: "mariadb $$MYSQL_DATABASE -u$$MYSQL_USER -p$$MYSQL_PASSWORD -e 'SELECT 1;'"
      interval: 10s
      timeout: 5s
      retries: 5

networks:
  lingarr:
    external: true

Setting up Lingarr using Docker CLI

Follow the following steps to set up Lingarr via Docker CLI

# Create the network
docker network create lingarr

# Start MariaDB
docker run -d \
  --name lingarr-db \
  --restart unless-stopped \
  -e MYSQL_DATABASE=lingarr \
  -e MYSQL_USER=lingarr \
  -e MYSQL_PASSWORD=your-password \
  -e MYSQL_ROOT_PASSWORD=your-root-password \
  -v /path/to/db:/var/lib/mysql \
  --network lingarr \
  mariadb:latest

# Start Lingarr
docker run -d \
  --name lingarr \
  --restart unless-stopped \
  -p 9876:9876 \
  -e ASPNETCORE_URLS=http://+:9876 \
  -e DB_CONNECTION=mysql \
  -e DB_HOST=lingarr-db \
  -e DB_PORT=3306 \
  -e DB_DATABASE=lingarr \
  -e DB_USERNAME=lingarr \
  -e DB_PASSWORD=your-password \ # provide a password
  -v /path/to/media/movies:/movies \
  -v /path/to/media/tv:/tv \
  -v /path/to/config:/app/config \
  --network lingarr \
  ghcr.io/lingarr-translate/lingarr:latest # or use: lingarr/lingarr:latest

Lingarr environment variables

These variables can be used

Environment Variable	Description
`ASPNETCORE_URLS=http://+:9876`	The internal port that Lingarr will listen on inside the container.
`MAX_CONCURRENT_JOBS=1`	Sets the amount of jobs that can run concurrently, defaults to 1.
`DB_CONNECTION=mysql`	Specifies the database connection type. Options are `mysql`, `postgresql` or `sqlite`.
`DB_HOST=Lingarr.Mysql`	The hostname for the MySQL database (required when using `mysql` or `postgresql`).
`DB_PORT=3306`	The port for the MySQL database (required when using `mysql` or `postgresql`).
`DB_DATABASE=Lingarr`	The name of the database (required when using `mysql` or `postgresql`).
`DB_USERNAME=Lingarr`	The username for the database (required when using `mysql` or `postgresql`).
`DB_PASSWORD=Secret1234`	The password for the database (required when using `mysql` or `postgresql`).
`DB_HANGFIRE_SQLITE_PATH=/app/config/Hangfire.db`	The path of the sqlite database file for Hangfire, when sqlite connection is used

Additional settings can be found here that can be set as environment variables to persist settings for each reinstall

Setting up LibreTranslate

This step is optional if you are using a translation service other than LibreTranslate.

  LibreTranslate:
    container_name: LibreTranslate
    image: libretranslate/libretranslate:latest
    restart: unless-stopped
    environment:
      - LT_LOAD_ONLY=en,nl  # Important, replace with your preferred languages
    ports:
      - 5000:5000
    volumes:
      - /path/to/config:/home/libretranslate/.local/share/argos-translate
    networks:
      - lingarr
    healthcheck:
      test: ["CMD-SHELL", "./venv/bin/python scripts/healthcheck.py"]

Setting up LibreTranslate using Docker CLI

Create necessary directories and set permissions:

mkdir -p /apps/libretranslate/{local,db}
chmod -R 777 /apps/libretranslate

Run LibreTranslate Docker container:

docker run -d \
  --name LibreTranslate \
  -p 5000:5000 \
  -v /path/to/libretranslate/db:/app/db \[Settings.MD](Settings.MD)
  -v /path/to/libretranslate/local:/home/libretranslate/.local \
  libretranslate/libretranslate \
  --disable-web-ui \
  --load-only=en,nl     # Important, replace with your preferred languages

LibreTranslate environment variables

Parameter	Function
`LT_LOAD_ONLY`	Allows you to add source languages by their iso code
`LT_DISABLE_WEB_UI`	Enables or disables a Google translate like web ui

Running Lingarr as non-root

When running Docker containers, you can optionally specify which user should run the container process using the user flag. This is useful for:

Security: Running containers as non-root users
Permissions: Ensuring files created by the container have the correct ownership on your host system

Docker Compose syntax:

user: "1000:1000"  # UID:GID

Docker CLI syntax:

--user 1000:1000  # UID:GID

API Integration

Lingarr provides a RESTful API that allows you to integrate subtitle translation capabilities into your applications. You can find the complete API documentation, including a Swagger definition of all available endpoints at the Lingarr API Documentation