Total Validator Basic is a free application that can perform four types of validation on a single web page:
Other great features:
- One-click, and DOM-based validation using our browser extensions
- Validate local pages, and pages on intranets or other private websites
- Fast response with local results for security
- Is available for Windows, macOS, and Linux
Upgrade to the Pro version for many more features, including validating an entire website or multiple websites in one go, CSS validation, and validating websites with login forms.