Privacy Policy

Last Updated: March 30, 2026

Introduction

ProseLint Web ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we safeguard your information when you use our web application.

ProseLint Web is an independent project and is not affiliated with or endorsed by the official Vale project.

Operator and contact

We respect your privacy

We do not collect any personal information or document content. All linting and processing happens locally in your browser.

Data storage and security

Content and editor data

We do NOT collect, store, or transmit your document content or editor settings to our servers. All document processing happens entirely in your browser using WebAssembly (WASM).

The following data stays exclusively on your device:

  • Document text you write or upload
  • Selected Vale style packages
  • Editor preferences (theme, font size, settings)
  • Lint results and caching data
  • Vale WASM binary and style packages

Storage: Your browser's IndexedDB - completely local, never sent to our servers

Your documents stay private: All linting happens 100% in your browser. Your document content is never transmitted to our servers or any third parties.

Where your data lives

  • 📦 GitHub: Vale style packages (downloaded directly to your browser via GitHub API)
  • 💾 Browser: Your document content, editor settings, and cached packages (stored in IndexedDB)

Security measures

  • All data transmission uses HTTPS encryption
  • No server-side storage of your document content
  • Regular security updates and monitoring

Third-party services

We use the following third-party services:

GitHub

Vale style package downloads (via GitHub API)

View GitHub Privacy Policy →

Vercel

Hosting and deployment of our web application

View Vercel Privacy Policy →

Cookies and tracking

No cookies and tracking are used.

Changes to this policy

We may update this Privacy Policy as the application evolves. Significant changes will be announced via:

  • An in-app notification
  • Updated "Last Updated" date at the top of this page

Continued use of the application after changes constitutes acceptance of the updated policy.

Thank you for trusting ProseLint Web with your documentation linting needs. We're committed to protecting your privacy while delivering an excellent experience.