# LTeX+

> LTeX+ is the maintained continuation of LTeX (whose original repos are archived): a language server (18.7.0, June 2026) plus a VS Code extension that bundles LanguageTool and Java and checks grammar and spelling offline in over 20 languages, including English, French, German, Dutch, Chinese and Russian. It understands LaTeX, Markdown, Typst, AsciiDoc, Org, reStructuredText and more. MPL-2.0. It works inside editors only, with no AI rewriting, tone changes or plagiarism checks.

- Repository: https://github.com/ltex-plus/ltex-ls-plus
- Official docs: https://ltex-plus.github.io/ltex-plus/
- Checked: 2026-10-15

## What it replaces
- Grammarly: Grammar and spelling checks (partial). Offline grammar and spelling inside code editors for markup files; no browser extension, AI rewrite or plagiarism check.

## Facts, with sources

| Question | Status | Answer | Source | Checked |
|---|---|---|---|---|
| Runs on my machine? | Confirmed | Yes, offline language server; can optionally use an external LanguageTool server | https://github.com/ltex-plus/ltex-ls-plus#features | 2026-10-15 |
| Code licence | Partial | MPL-2.0 (weak copyleft); bundles LanguageTool (LGPL) | https://github.com/ltex-plus/ltex-ls-plus/blob/develop/LICENSE.md | 2026-10-15 |
| Model weights licence | Confirmed | No separate model weights | https://github.com/ltex-plus/ltex-ls-plus#readme | 2026-10-15 |
| Commercial use | Partial | Yes, MPL-2.0 and LGPL conditions apply if you modify and distribute | https://github.com/ltex-plus/ltex-ls-plus#readme | 2026-10-15 |
| Paid services needed? | Confirmed | None required | https://github.com/ltex-plus/ltex-ls-plus#features | 2026-10-15 |
| Hardware | Unknown | Not documented | none found | - |
| Operating systems | Confirmed | Release builds for Windows, macOS and Linux (x64 and ARM64) | https://github.com/ltex-plus/ltex-ls-plus/releases/tag/18.7.0 | 2026-10-15 |
| Setup effort | Confirmed | Easy; install the VS Code extension, or download a bundled release for other LSP editors | https://github.com/ltex-plus/ltex-ls-plus#features | 2026-10-15 |

GitHub: 259 stars, 21 forks, last push 2026-10-10, archived: no.
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Source: RepoQuarry (https://repoquarry.dev/projects/ltex-plus). Data licence: CC BY 4.0. Quotes are from project documentation and belong to their authors.