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XML Viewer Plus opens XML in Firefox, on desktop and Android, as a fast, searchable tree. It detects XML by content type, so URLs without .xml open too: REST APIs, RSS, Atom, SOAP, KML, GPX, sitemaps. Characters show correctly in any encoding: ISO-8859-1, Windows-1252, Shift_JIS, UTF-16. Large documents open in about a second. Search with text, regular expressions, XPath (namespaces included) or CSS selectors. Feeds get a reader view, and the source view is syntax-highlighted. Light and dark themes. No data collection. Version 2.0 is a Manifest V3 rewrite with no third-party libraries. MIT licence.
Features
- Opens XML automatically by content type, also without .xml in the URL
- Firefox for Android and desktop (Manifest V3)
- Correct characters in any encoding (BOM, HTTP charset, XML declaration)
- Lazy tree and virtualised source: no line limit, large files open fast
- Search with text, regex, XPath 1.0 (with namespaces) or CSS selectors
- Reader view for RSS and Atom feeds
- Node details: copy XPath, XML, text or JSON
- Clear errors with line and column; tolerates HTML entities
- Export as XML, minified XML or JSON
- Light, dark and automatic themes; touch-friendly on phones
- Context menu: view a selection, a link or the page as XML
- No tracking, no console output, no third-party code
Project Samples
Categories
Browser Extensions and PluginsLicense
MIT LicenseOther Useful Business Software
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User Reviews
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4 out of 5 starsXML Viewer Plus is great. The only issue I have is I need a white background. I am older and the black background makes it hard to see. Can you add an option to pick the background color?
