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LingoTweaker icon

LingoTweaker

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LingoTweaker is a proofreader of numerous languages written in Rust, with bindings with Python and Node and compilable to WebAssembly.

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Cost / License

  • Freemium (Pay once or Subscription)
  • Open Source (LGPL-2.1)

Since

  • New

Updated

  • Updated Oct 2026

Platforms

  • Google Chrome
  • Mozilla Firefox
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LingoTweaker information

  • Developed by

    SE flagFidus Writer

  • Licensing

    Open Source (LGPL-2.1) and Freemium product.

  • Pricing

    One time purchase that costs from $29, and / or subscription that costs from $19 per year + free version with limited functionality.

  • Written in

  • Alternatives

    10 alternatives listed

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  • Supported Languages

    • English

AlternativeTo Categories

Web Browsers, News & Books

GitHub repository

  •  13 Stars
  •  1 Forks
  •  2 Open Issues
  •   Updated  
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What is LingoTweaker?

LingoTweaker includes a port of the LanguageTool proofreading engine and its rule data. Additional languages and improvements to existing languages will be added over time.

LingoTweaker is an independent project, not affiliated with or endorsed by the LanguageTool project, whose name and trademark belong to their owners. Upstream references and licenses are kept.

Rust-first: cargo add lingotweaker and embed the engine directly (lt::Engine::check). v2 HTTP drop-in: same /v2/* paths, parameters, and JSON schema, so existing clients switch without changes. WebAssembly: lt-wasm / the lingotweaker-wasm npm package runs the engine in the browser and Node from fetchable per-language data packs. Vendored data: everything needed at runtime is copied into data/ with per-file sha256 provenance, pinned to one upstream commit (upstream.json). Parity-driven: the legacy <example> tests are the primary gate; a pinned Java build of the legacy engine provides differential fixtures.