XSLT Prism - XSLT Polyfill, XML Viewer & XSLT Tester

From November 17, 2026, Chrome will stop applying stylesheet transformations to XML pages. Documents that depend on them may appear as raw source, while some browser-based applications may stop working. XSLT Prism restores that functionality so existing pages and tools can continue working in Chrome. RENDER STYLED XML PAGES When a document references a stylesheet, Prism applies it directly in the current tab. • Display XML pages as intended instead of raw source • Support imported files and parameters • Open and render local documents • Switch between the rendered result and source with Alt+Shift+X RESTORE THE JAVASCRIPT API Some web applications depend on the XSLTProcessor browser API. • Enable support only on sites you choose • Turn it on directly from the extension popup • See an "API" badge when a page requests it • Keep it disabled on unrelated websites SEE WHAT HAPPENED The toolbar popup shows useful information about the current page. • See which stylesheet was used • Check processing time • Review generated messages • Understand why a transformation failed • Pause Prism for a specific site • Disable it globally when needed READ XML MORE EASILY Documents without a stylesheet open in a clean, readable viewer. • Expand and collapse elements • Search within the document • Run XPath queries • Copy element paths • Switch to a line-numbered source view • Copy or save the original file • Work smoothly with large documents BUILT-IN WORKBENCH Prism Workbench gives you a full-tab environment for testing and development. • Edit the document and stylesheet side by side • Preview the result instantly • Inspect the generated source • Review messages and timing • Set parameters • Test XPath expressions • Load live pages for testing • Start from built-in examples PRIVATE AND LIGHTWEIGHT The processing engine runs locally on your device using libxslt compiled to WebAssembly. • No account required • No analytics • No external server • Your documents stay in your browser • Only lightweight detection code runs on regular pages • Long-running operations are stopped before they can freeze the tab