Last Updated on March 15, 2026
Eloquent is a proofreading tool for English, Spanish, French, German, Portuguese, Polish, Dutch, and more than 20 other languages. It finds many errors that a simple spell checker cannot detect.
It works fully offline, powered by the LanguageTool standalone server.
Eloquent can also run as a service in the background to make your local/offline LanguageTool server available to Firefox, LibreOffice and more.
This is free and open source software.
Website: github.com/sonnyp/Eloquent
Support:
Developer: Sonny Piers
License: GNU General Public License v3.0

Eloquent is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.
This article was written with the help of a site visitor who completed this form. Help the site by suggesting new open source software.
Related Software
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| LanguageTool | Style and grammar checker for 30+ languages |
| Vale | Write with a consistent tone and style |
| ALE | Asynchronous Lint Engine |
| textlint | Pluggable linting tool for text and markdown |
| Harper | English grammar checker designed to be just right |
| proselint | As the name suggests, this is a linter for prose |
| alex | Catch insensitive, inconsiderate writing |
| write good | Linter for English prose |
| Eloquent | Works fully offline, powered by the LanguageTool standalone server |
| RedPen | Provides both a simple standalone command line tool and a server |
Read our verdict in the software roundup.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |


Hi Steve. That was fast, I only submitted Eloquent yesterday. 🙂
BTW, how do you catalog all of the software and games that you post here on LL. A spreadsheet or database or other?
Keep up the great work.
Cheers.
Thanks for this submission Torin and your kind words.
I mostly use software including OnlyOffice (spreadsheets), RStudio, and WordPress to generate roundups and write articles. All open source goodness.