Online XSLT Compiler and Tester

Transform XML for free using XSLT 1.0, 2.0, or 3.0.

XML Source
0 lines
1
XSLT Stylesheet
0 lines
1
Transformation Output
0 lines
1
XML 0 B · XSLT 0 B XSLT 1.0, 2.0, 3.0
Ready
Related tools XSLT Compare XML Formatter XML Viewer

Why Use Our XSLT Tool?

  • Instant XML & XSLT validation
  • Clear errors with line and column
  • Automatic XML formatting on paste
  • Copy, download and reuse output
  • No installation or sign-up

Features & Supported Capabilities

  • Supports XSLT 1.0, 2.0 and 3.0
  • Automatically detects the XSLT version
  • Produces XML, HTML or plain-text output
  • Processes files securely without storing them
  • Supports XML and XSLT files up to 2 MB

About this online XSLT tester and compiler

This free online XSLT tester lets you run an XSLT transformation without installing an XSLT processor. Paste or upload your XML and your stylesheet and the output appears straight away, with exact line and column numbers if the stylesheet or the XML has an error. All of XSLT 1.0, 2.0 and 3.0 are supported, detected automatically from your stylesheet's version, so 2.0/3.0 features such as grouping, regular expressions and maps work as expected.

Unlike most tools on DevTooling, the XSLT compiler runs on the server: your XML and XSLT are sent to perform the transformation, held in memory for that one request and never stored. To keep that safe for everyone, a stylesheet can't read or write files, or load content from anywhere else — so document(), xsl:import, xsl:include and xsl:result-document with an external URI aren't available, and neither is inline script such as msxsl:script. To tidy your XML first use the XML formatter; to see what changed between two stylesheets use XSLT compare.

Frequently Asked Questions

Everything you might want to know about the online XSLT Compiler.

An XSLT compiler reads a stylesheet written in XSLT (Extensible Stylesheet Language Transformations), checks it for errors, and runs it against an XML document to produce a new document — commonly HTML, plain text, or a differently structured XML file.
Paste or upload your XML into the XML Source pane and your stylesheet into the XSLT Stylesheet pane, then click Run. The result appears in the Transformation Output pane, ready to copy or download.
Yes. The version is detected automatically from your stylesheet's version attribute: version="2.0" or version="3.0".
No. Allowing inline <msxsl:script> code would mean running arbitrary code on the server for any visitor. A stylesheet containing it returns a clear error instead of executing.
Yes. Set <xsl:output method="html"/> (or "xhtml") in your stylesheet and emit HTML elements from your templates — this is one of the most common uses of XSLT, turning raw XML data into a formatted page.
XPath is a query language for selecting nodes in an XML document, like /library/book[1]/title. XSLT is the transformation language — it uses XPath expressions inside its templates to select the nodes it acts on.
No. Your XML and stylesheet are sent to the server only to run the transformation, held in memory for the duration of the request, and never written to disk, logged, or stored.
Each field — the XML and the XSLT stylesheet — can be up to 2 MB.
XSLT 1.0 processors don't understand functions and syntax introduced in 2.0/3.0, and vendor-specific extensions such as msxsl:script only work on the processor that defines them. Check your stylesheet's version attribute and avoid processor-specific extensions if it needs to run the same way everywhere.
  • XSLT 1.0: Use for simple XML transformations and maximum compatibility with older systems or browsers.
  • XSLT 2.0: Use for more complex transformations requiring grouping, regular expressions, multiple output files, stronger data types, and improved XPath.
  • XSLT 3.0: Use for modern and advanced transformations involving JSON, maps, arrays, streaming, packages, higher-order functions, and improved error handling.