LanguageTool Alternatives

Apps similar to LanguageTool include Grammarly, which has a free version. Other options are DeepL Write, Harper, Grammalecte and Grammit. Grammar Checkers like LanguageTool are a crowded field, with more than 100 alternatives for the web, Mac, Windows, Linux and iPhone.

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LanguageTool alternatives page was last updated Oct 28, 2026

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.
Cost / License
Freemium
Open Source (LGPL-2.1)
Origin
Sweden
EU
Since
New
Platforms
Google Chrome
Mozilla Firefox
Sweden
EU
Good alternative?Is LingoTweaker a good alternative to LanguageTool?
Just Not Sorry -- the Gmail Plug-in
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just-not-sorry - Gmail Plug-in that warns you when you write emails using words which undermine your message
Cost / License
Free
Open Source
Origin
United States
Since
Since 2016
Platforms
Windows
Mac
Linux
Chrome OS
Google Chrome
United States
+1
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