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Setting up LanguageTool

One container, then pointing the usual clients (browser extension, LibreOffice) at it instead of the public API.

  1. 1

    Run the container

    The default install works out of the box, spell and grammar checking for the languages it ships with by default.

    services:
  languagetool:
    image: erikvl87/languagetool:latest
    container_name: languagetool
    restart: unless-stopped
    ports:
      - "8010:8010"
  2. 2

    Add n-gram data for better suggestions (optional)

    LanguageTool's confusion-word suggestions (their/there, its/it's) get noticeably better with n-gram data mounted in, at the cost of a multi-gigabyte download per language. Worth it if writing quality matters more than disk space.

  3. 3

    Point the browser extension at this server

    The official LanguageTool extension (Chrome, Firefox, Edge) has a setting for a custom server URL, switch it from the public API to this container's address.

  4. 4

    Connect LibreOffice

    With the LanguageTool extension installed in LibreOffice, its options include a "use remote server" setting, pointed at this same address for offline documents.

Further reading