LTeX+

Windows · Mac · Linux · Self-hosted · Extension

Freedom report

Three barsScore 6.9

Free tierA free tier is on its own pricing page
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

LTeX+ is ranked #41 of 88 in grammar checkers on Freedom251. It runs on Browser extension, Linux, macOS, Self-hosted, Windows. There is a free plan.

LTeX+ plans and pricing

All plans

Free Free Offline grammar and spelling checking · use in supported editors, as an LSP language server, or from the command line ltex-plus.github.io · 5 Oct 2026

Compared on grammar checkers

Style suggestions: Yes

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The record

Purpose: LTeX+ provides offline grammar checking for markup languages using LanguageTool.
Document formats: It supports formats including LaTeX, Markdown, Typst, Org, BibTeX, reStructuredText, and XHTML.
Writing feedback: It detects spelling, grammar, and stylistic errors, highlights issues with hover descriptions, and offers replacement suggestions through quick fixes.
Languages: The supported natural languages are the same as LanguageTool’s and can vary when a release updates the LanguageTool version.
Offline privacy: The bundled offline checker does not upload anything to the internet.
External service option: Users can configure LTeX+ to use an external LanguageTool server.
Integrations: Official editor extensions are available for Visual Studio Code and Emacs; LTeX+ also works through the Language Server Protocol or command line.
Other editor support: The documentation lists third-party integrations for Neovim, Sublime Text, and Emacs eglot, and says LSP-compatible editors can use the language server.
Customization: Features include user dictionaries and multilingual document checking through LaTeX babel commands or magic comments.
Intended users: The project cites scientific LaTeX papers as a classic use case and also suggests blog posts, book chapters, and long emails.
System requirements: The VS Code extension requires a 64-bit Linux, Mac, or Windows system and VS Code 1.82.0 or later, with extra language extensions needed for some document formats.
Performance note: The FAQ says an initial check usually takes around 30 seconds and may take up to two minutes, depending on document length and computer power.
Security support: By default, only the latest published version receives security updates, and vulnerability reports should be submitted through GitHub Security Advisories.
Support channel: The FAQ directs users with unanswered questions to the project’s GitHub repository and asks them to read the contribution instructions before opening an issue.
Price from: Free

Where it ranks on Freedom251

Best Grammar Checkers in 2026#41 of 88

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Sources

ltex-plus.github.io/ltex-plus/· checked 5 Oct 2026
ltex-plus.github.io/ltex-plus/supported-languages.html· checked 5 Oct 2026
ltex-plus.github.io/ltex-plus/installation-usage.html· checked 5 Oct 2026
ltex-plus.github.io/ltex-plus/vscode-ltex-plus/installation· checked 5 Oct 2026
ltex-plus.github.io/ltex-plus/faq.html· checked 5 Oct 2026
github.com/ltex-plus/vscode-ltex-plus/blob/develop· checked 5 Oct 2026