# rhysd/vim-grammarous

A powerful grammar checker for Vim using LanguageTool.

Repository: https://github.com/rhysd/vim-grammarous
Canonical: https://ross.abutalabs.com/products/vim-grammarous
Language: Vim Script
License Family: other
Topics: vim, vim-plugin, grammar, grammar-checker, natural-language
Last push: 2022-10-25T15:36:06+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4406, "days_push": 1408, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1122, forks 43 (observed 2026-08-28T04:03:40.069337+00:00)

## What it is
A Vim plugin that provides grammar checking by integrating with LanguageTool, which it can download automatically. It highlights grammar errors in the buffer, shows an information window with error details, and offers mappings to fix or navigate errors asynchronously on Vim 8+ or Neovim.

## Use cases
- check grammar of a document in vim
- fix grammar errors without leaving the editor
- integrate languagetool into vim workflow
- proofread markdown or prose while writing in vim
- jump between grammar errors and auto-fix them

## When to choose
- you write prose in Vim or Neovim and want inline grammar checking
- you want LanguageTool integration without leaving the editor
- you need asynchronous checking so editing is not blocked

## When to avoid
- you use an editor other than Vim or Neovim
- you don't have Java 8+ installed and can't install it
- you need a standalone grammar checker rather than an editor plugin
- you need actively maintained software with guaranteed updates

## Facets
- artifact type: plugin
- maturity: maintenance
- function: nlp, editor
- domain: text-editors, developer-tools
- platform: editor-plugin, cli, cross-platform
- tags: vim, grammar-checker, languagetool, vim-plugin, natural-language-processing

## Member repositories
- rhysd/vim-grammarous (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:40.069337+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:40:57.564116+00:00, confidence not recorded.
  - readme: https://github.com/rhysd/vim-grammarous (fetched 2026-08-28T04:03:40.069337+00:00, sha 67e04f7c0e72)
- Data as of 2026-08-30T08:39:29.467469+00:00.