XSLT Compare

Paste two XSLT stylesheets and see the differences — everything runs in your browser.

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Ready to compare
Related tools XSLT Compiler XML Compare Text Compare

Why Use Our XSLT Compare?

  • Line and character-level highlights
  • Added, removed and unchanged counts
  • Synchronised scrolling between panes
  • Works completely in your browser
  • Handles XSLT 1.0/2.0/3.0 stylesheets

Features & Supported Capabilities

  • Auto-formats pasted XSLT before diffing
  • Myers diff algorithm for accurate change detection
  • Handles files up to 10 MB per side
  • Optional line wrapping for long lines
  • Copy or download either side independently

About this XSLT compare and diff checker

When an XSLT stylesheet changes, you want to see exactly what. This free online XSLT compare tool auto-formats two stylesheets and highlights the differences line by line, so template edits, added parameters and changed XPath expressions stand out.

It runs in your browser and nothing is uploaded. When you are ready to test a change run the stylesheet in the XSLT compiler. For other content use text compare or XML compare.

Frequently Asked Questions

Everything you might want to know about the online XSLT Compare tool.

It compares two XSLT stylesheets side by side and highlights the templates, elements, attributes and text that were added, removed, or changed between them — useful for reviewing stylesheet edits or two versions of a transform.
Yes. Pasted XSLT is auto-indented first, since XSLT is XML — so two stylesheets that differ only in whitespace or minification won't drown the real differences in formatting noise.
Line-level, with character-level highlights inside changed lines — so you can see exactly which template match, attribute, or value changed within a line, not just that it did.
No. The comparison runs entirely in your browser. Neither side's stylesheet is ever uploaded, stored, or logged.
You can paste text or upload a file up to 10 MB on each side.
Lines only in the left stylesheet are marked as removed, lines only in the right stylesheet are marked as added, and unchanged lines are shown without a highlight.
Yes, each side's XSLT can be copied or downloaded independently, the same as the other editors on this site.
Yes. Identical head and tail regions are trimmed before diffing, so stylesheets that share long identical sections compare quickly even at tens of thousands of lines.
The XSLT Executor runs a stylesheet against an XML document to produce output. XSLT Compare takes two stylesheets and shows exactly what's different between them.