LocalWriter

LocalWriter adds AI writing assistance inside LibreOffice Writer for people who want to draft and revise text within their documents. It works with selected passages and requires a separate language model runner.

• Continue and summarize: Extend Selection generates text based on a selected passage, with uses such as developing a story, drafting an email, expanding a list or producing a summary.
• Revise selected text: Edit Selection replaces a passage according to your written instructions, including tone changes, translation and revisions to a story scene.
• Writing style controls: Separate system prompts guide the model's style for continuation and editing.

The extension runs on macOS, Windows and Linux. It works with models served by Ollama and text-generation-webui, including Gemma 3 through Ollama. Your backend determines which models you can use.

LocalWriter also supports OpenAI-compatible endpoints and OpenWebUI. Text goes to the endpoint you choose: a model runner on your own machine processes it locally, while a remote endpoint sends it away from your machine for processing.