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WSDL Formatter

Paste a compact WSDL file and format it with proper indentation so the service contract structure is easy to read.

Last updated: May 29, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution

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What is WSDL Formatter?

WSDL Formatter pretty-prints Web Services Description Language (WSDL) files — the XML contract format used to describe SOAP web service interfaces. A WSDL downloaded from a service endpoint is often a dense single-line or poorly indented XML file. This formatter normalises whitespace and indents each element so the types, messages, portType, binding, and service sections are clearly visible and navigable. It uses the same XML formatting engine as the XML Beautifier.

How to Use WSDL Formatter

1

Paste a WSDL XML document.

2

Choose indentation style.

3

Click Format.

4

Review the formatted WSDL structure.

5

Copy or download the .wsdl file.

Common Use Cases

  • Reading a WSDL downloaded from a legacy enterprise service endpoint.
  • Understanding WSDL structure while building a SOAP client or integration.
  • Formatting WSDL snippets for API documentation or wiki pages.
  • Comparing two WSDL files side by side after formatting both.

Example Input and Output

A compact WSDL message definition is expanded with proper XML indentation.

Compact WSDL
<definitions name="Svc" xmlns="http://schemas.xmlsoap.org/wsdl/"><message name="Req"><part name="p" type="xsd:string"/></message><portType name="PT"><operation name="Op"><input message="tns:Req"/></operation></portType></definitions>
Formatted WSDL
<definitions name="Svc" xmlns="http://schemas.xmlsoap.org/wsdl/">
  <message name="Req">
    <part name="p" type="xsd:string"/>
  </message>
  <portType name="PT">
    <operation name="Op">
      <input message="tns:Req"/>
    </operation>
  </portType>
</definitions>

Privacy

WSDL files are formatted locally in the browser and are not uploaded.

Frequently Asked Questions

Does this validate WSDL structure?
No. It formats XML for readability only. Use a SOAP tool like SoapUI or an XML schema validator to check WSDL compliance.
Does it support WSDL 2.0?
WSDL 2.0 uses different element names (interface, binding, service) but is still XML. The formatter handles it as generic XML.
Can I use this to explore a WSDL from a URL?
Yes — paste the WSDL content into the input. To fetch it from a URL, save the page source first and paste the XML here.
Is my WSDL uploaded anywhere?
No. Formatting runs entirely in your browser.