Altova XMLSpy 2026 Professional Edition
JSON and XML Editor
v2026.02.00
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About
Create, edit, transform, and debug XML and JSON content with Altova XMLSpy 2026 Professional Edition. It supports development tasks involving XSD, XSLT, XQuery, XBRL, SOAP, and related technologies, with a graphical schema designer, code generation, file converters, debuggers, and profilers.
Version 2026.02.00 preserves a node’s collapsed state when it is copied and pasted in Grid View. It also addresses XSLT debugging with JSON input, BSON files opened after using Assign Schema, sample XML and JSON generation issues, and validation of new features in xBRL-CSV reports. The Windows application is published by Altova for x64 systems.
Architecture: x64
What's new in v2026.02.00
[Grid View] A node pasted into Grid View, which was collapsed when copied, should be collapsed after pasting [XSLT/XQ Debugger] Starting XSLT debugger with JSON file as input results in “XSLT 3.0 Debugging Error” [BSON] XMLSpy crashes with BSON file open after selecting Assign Schema from the DTD/Schema menu [Generate Sample XML File] Results of sample instance generation against customer XML schema vary unexpectedly depending on choice group settings against other content model such as sequence [JSON] Generated sample JSON instance root element is claimed by XMLSpy to be, ‘not valid’ [XBRL validation] No error is reported when a new feature is defined in an xBRL-CSV report using the xbrl namespace
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