← IDLI

LanguageTool Observatory

Every XML grammar, style, and spelling rule shipped in LanguageTool, tracked per language.

The Index
Each row is one language, grouped by LanguageTool's API short code (e.g. all English locale variants — en, en-US, en-GB, etc. — are one row): they share a single rule set, so listing each variant separately would just repeat the same counts. Click a row to open its trend chart, full variant list, and top rule categories.
Language Total Grammar Style Spelling