GNU LibreJS vs W3C Markup Validation Service
A side-by-side look at GNU LibreJS and W3C Markup Validation Service. For an in-depth review of either product, follow the links below.
GNU LibreJS
Security & Privacy
GNU LibreJS is a free add-on for Firefox and Chromium-based browsers that blocks nonfree nontrivial JavaScript code. It protects users from privacy/security issues and promotes the spread of free software.
privacysecurityjavascriptbrowseraddon
W3C Markup Validation Service
Web Browsers
The W3C Markup Validation Service is a free tool that checks HTML and XHTML documents for conformance to W3C standards. It can help identify potential issues in web pages and ensure they use valid markup.
htmlxhtmlvalidatorw3cstandards
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