XSLT Transformer Online
Run A Stylesheet On Your XML

What An XSLT Transformer Online Does For You

XSLT is a language for turning one XML file into another shape. It can make a web page, a report or a new XML file. But a stylesheet is hard to debug when you cannot see the result. So a live view helps a lot.

This tool shows the result at once. First, paste your XML. Then paste a stylesheet, or pick an example. Also, you can open both as files. The output appears as you type, and an HTML result also gets a preview.

The engine follows XSLT 1.0. That is the version browsers and most XML tools support. So a stylesheet that works here will work in your project too. Besides, XSLT 1.0 is small enough to learn in an afternoon.

The page has a second job as well. It can read your XML and write classes for Java, C#, Kotlin, TypeScript, Go, Python, PHP, Swift and Rust.

Everything runs in your browser. Your XML and your stylesheet never leave your device. That matters, because XML often holds orders, prices and private feeds.

XML To HTML Using XSLT

This is the classic job. First, a stylesheet loops over your records and writes table rows. A sort instruction puts them in order. A test marks the ones that need attention.

Pick the first example and you see the idea in seconds. First, the XML holds three books. Then the stylesheet turns them into a table. Finally, the preview draws the table.

Next, you can change the stylesheet and watch the page change. So learning XSLT becomes a quick loop of edit and look.

For more detail, see: MDN guide to XSLT.

XSL Transform Online With Real Templates

The tester supports the parts of XSLT that people use every day. You can write templates with a match pattern, a mode and a priority. You can call named templates and pass parameters.

Also, you get for-each, if, choose, variables, sorting, copy, copy-of and number. Attribute value templates work too, so you can write class="{@lang}" and get a value.

The tool says so clearly when it does not support a feature. For example, key(), document() and include give a message and a line number.

A Preview You Can Trust

Also, when the result is HTML, a Preview tab appears. It draws headings, paragraphs, lists, links and tables.

The preview stays simple on purpose. It leaves out scripts, styles and images, so nothing in a stylesheet can run on this page. That keeps the tool safe.

XML To Java, C# And More

Next, switch to the second mode to turn XML into code. The tool reads the XML, works out the fields and writes the classes. Repeated tags become lists. Attributes become fields. Numbers keep their type.

Then you pick a language. You can choose Java, C#, Kotlin, TypeScript, Go, Python, PHP, Swift or Rust. Copy the code, or save it as a file.

Parameters And Output Types

First, type parameters as name=value pairs. A stylesheet that declares a param with the same name picks them up. Also, the output tag decides if the result is HTML, XML or text.

The result saves with the right extension, so an HTML result becomes a .html file.

A Short XSLT Cheat Sheet

A template starts with xsl:template. Its match pattern says which nodes it handles. So match="book" handles every book.

Then xsl:apply-templates sends nodes to their templates. In contrast, xsl:for-each loops over a list in place. Both can sort with xsl:sort.

Also, xsl:value-of writes text, and xsl:if and xsl:choose make decisions. Finally, xsl:copy-of copies a whole branch of the source.

Curly braces inside an attribute run XPath. For example, id="{@id}" writes the id of the current node.

Safe By Design

The engine is written by hand. It never calls eval, and it never hands your XML to the browser as markup. It never expands entities from a DOCTYPE, so entity attacks cannot work.

A guard stops stylesheets that loop without end. Instead of freezing the page, the tool tells you what went wrong.