Simplify Multipart API Request Testing

Altova XMLSpy is an XML and JSON editor with tools for editing, validating, transforming, and debugging structured documents. It includes graphical schema editors, XSLT and XQuery tools, and an HTTP Testing Window for working with web APIs.

Altova XMLSpy 2027 adds multipart/form-data support to its HTTP Testing Window, allowing developers to send files, text fields, and JSON metadata together in POST and PUT requests. A grid-based editor lets developers define each part’s name, content type, and value, then send the request and inspect the response in the same window.

To see a full list of what's new in 2027, see our release notes.

Altova XMLSpy is licensed per Installed, Concurrent or Named user. Licenses are perpetual, and come with or without 1 year Support and Maintenance Package (SMP). See our Altova XMLSpy licensing page for full details.

Altova XMLSpy XML Editor is available individually or as part of Altova MissionKit