# Vale

> Vale is a command-line linter for prose (v3.24.0, October 2026), MIT-licensed and written in Go. It ships no opinions of its own: you install style packages such as Microsoft's or Google's guides, or write your own rules for terms, wordiness and passive voice. Runs offline on macOS, Windows and Linux and is aimed at docs teams. Rules are mostly written for English. It is not a full grammar checker and does no AI rewriting, tone changes or plagiarism checks.

- Repository: https://github.com/vale-cli/vale
- Official docs: https://docs.vale.sh
- Checked: 2026-10-15

## What it replaces
- Grammarly: Style and clarity suggestions (partial). Rule-based style and terminology checks for docs teams; no grammar engine, AI rewrite or browser extension.

## Facts, with sources

| Question | Status | Answer | Source | Checked |
|---|---|---|---|---|
| Runs on my machine? | Confirmed | Yes, offline command-line tool | https://github.com/vale-cli/vale#readme | 2026-10-15 |
| Code licence | Confirmed | MIT | https://github.com/vale-cli/vale/blob/v3/LICENSE | 2026-10-15 |
| Model weights licence | Confirmed | No separate model weights | https://github.com/vale-cli/vale#readme | 2026-10-15 |
| Commercial use | Confirmed | Yes, MIT | https://github.com/vale-cli/vale/blob/v3/LICENSE | 2026-10-15 |
| Paid services needed? | Confirmed | None required | https://github.com/vale-cli/vale#readme | 2026-10-15 |
| Hardware | Unknown | Not documented | none found | - |
| Operating systems | Confirmed | macOS, Windows and Linux | https://github.com/vale-cli/vale#readme | 2026-10-15 |
| Setup effort | Confirmed | Easy; Homebrew, Chocolatey, Docker image or release binary, then add a style package | https://github.com/vale-cli/vale#readme | 2026-10-15 |

GitHub: 6244 stars, 234 forks, last push 2026-10-14, archived: no.
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Source: RepoQuarry (https://repoquarry.dev/projects/vale). Data licence: CC BY 4.0. Quotes are from project documentation and belong to their authors.