Vale

Free & Open Source

An open-source command-line prose linter that enforces custom style guides for Markdown, AsciiDoc, HTML, and other markup formats.

4.0

About Vale

Alternative to

Screenshots

Pros & Cons

Pros

  • Fully open source under MIT — extend, fork, or self-host with no restrictions
  • Highly configurable via custom rules; supports Google, Microsoft, and Write Good style guides

Cons

  • Command-line only — no GUI or browser extension; not suitable for non-technical users
  • Requires setup and configuration before use; not a drop-in replacement for Grammarly

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