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Probador XPath

Pega contenido para Probador XPath y genera una vista local revisable para depurar configuración, respuestas de API, archivos SEO y fragmentos generados con AI.

Ejemplos
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Cómo usar

  1. 1Put the XPath expression on the first line, then add --- and the XML or HTML document.
  2. 2Start with a broad path and narrow it gradually.
  3. 3Inspect matched nodes and document outline to catch namespace or nesting mistakes.
  4. 4Verify final expressions in the same parser used by your tests or automation.

Casos de uso

XML feed debuggingHTML selector testingSitemap inspectionTest assertion designAI XPath validation

FAQ

Why does an XPath expression return no nodes?

Common causes include namespaces, selecting text nodes instead of elements, invalid document structure, or a path that assumes a different nesting level.

Can I test HTML as well as XML?

Yes for common snippets, but parser behavior can differ from browser automation libraries and XML processors.

How do I make XPath more robust?

Prefer stable attributes and clear hierarchy over brittle positional indexes whenever possible.

XPath Tester runs XPath expressions against XML or HTML snippets and previews matched nodes, document outline, and result summaries.

It is useful for sitemap inspection, XML feed debugging, scraping selectors, test assertions, and AI-generated XPath expressions that need validation.

Namespaces, document mode, and text-node selection can change results, so previewing the match list before committing an expression saves time.

Demo: inspect sitemap URLs with XPath

XPath is useful for XML sitemaps, but namespaces and repeated url nodes can make quick checks error-prone. Preview the match list before turning an expression into a script.

  • Use local-name() when namespace handling is uncertain.
  • Avoid positional indexes until you know the URL order is stable.
  • Check both loc and lastmod when reviewing sitemap quality.
//*[local-name()="url"]/*[local-name()="loc"]/text()
---
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url><loc>https://example.com/en</loc><lastmod>2026-06-18</lastmod></url>
</urlset>

Debug pattern: namespace-aware XPath testing

XPath examples often fail on real sitemaps, SVG, XML feeds, and SOAP responses because the document uses namespaces. A useful tester should make the namespace problem visible instead of making users guess.

  • Check the root xmlns before writing the expression.
  • Use local-name() when you need a quick namespace-independent inspection.
  • For production scripts, prefer explicit namespace bindings over local-name() shortcuts.
//*[local-name()="url"]/*[local-name()="loc"]/text()

Checklist de revisión para Probador XPath

Usa Probador XPath para inspeccionar visualmente contenido fuente antes de publicar documentación, notas de PR, incidentes o handoffs. Probador XPath: Previsualiza y depura esta fuente localmente.

Antes de exportar, revisa legibilidad, relaciones, datos sensibles y si la vista sigue teniendo sentido tras editar la entrada.

Límites y solución de problemas

Si la vista falla, reduce la entrada al ejemplo completo más pequeño, valida la sintaxis y agrega secciones gradualmente.

Trata la vista como superficie de revisión, no como fuente de verdad. Los resultados críticos requieren validación humana.

Entradas de ejemplo

  • RSS titles: //item/title --- <rss><channel><item><title>Release notes</title></item><item><title>API guide</title></item></channel></rss>
  • HTML links: //a/@href --- <html><body><a href="/docs">Docs</a><a href="/tools">Tools</a></body></html>
  • Simple XML: //book[@category="api"]/title --- <catalog><book category="api"><title>OpenAPI Guide</title></book><book category="ops"><title>Nginx Notes</title></book></catalog>

Madurez de la herramienta

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Analizador básico

Esta herramienta se centra en inspección rápida de estructura. Úsala para revisar y depurar, y valida lo crítico antes de producción.

La etiqueta indica si la herramienta sirve mejor para exportar, depurar, analizar rápido o generar con AI.