Altova XMLSpy Professional XML Editor

XML and JSON editor.

Published by Altova
Distributed by ComponentSource since 2004

Prices from: $ 635.08 Version: 2026 Updated: Oct 21, 2025 4.50 Star Average Review4.50 Star Average Review4.50 Star Average Review4.50 Star Average Review4.50 Star Average Review (4)

Screenshot of Altova XMLSpy Professional XML Editor

Altova XMLSpy Professional XML Editor News

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Altova XMLSpy Professional XML Editor 2018

Altova XMLSpy Professional XML Editor 2018

October 3, 2017New Version
Adds significant speed improvements to XSLT Engine.
Altova XMLSpy Professional XML Editor 2017 Release 3

Altova XMLSpy Professional XML Editor 2017 Release 3

April 7, 2017New Version
Adds JSON5 instance documents and schemas, plus Visual Studio 2017 and Windows Server 2016 support.
Altova XMLSpy Professional XML Editor 2017

Altova XMLSpy Professional XML Editor 2017

October 5, 2016New Version
Adds support for new databases, new text find and highlighting features, plus a French language version.
Altova XMLSpy adds XSL Speed Optimizer

Altova XMLSpy adds XSL Speed Optimizer

March 21, 2014Feature Release
Speeds up XSLT transformations, providing increases in throughput with no analysis required by developers.
Altova XMLSpy adds EPUB 2.x support

Altova XMLSpy adds EPUB 2.x support

March 1, 2012Feature Release
Open and validate EPUB files directly inside XMLSpy.
Altova XMLSpy 2012 released

Altova XMLSpy 2012 released

October 20, 2011Feature Release
Adds support for HTML 5 and CSS3, plus JDBC database driver support and a new Java API.
Altova XMLSpy 2011r3 now supports PXF file format

Altova XMLSpy 2011r3 now supports PXF file format

June 10, 2011Feature Release
Also adds Digital XML signatures for XML documents, support for .NET 4.0 scripting and a completely new spell checker.
XMLSpy embeds external files in XML

XMLSpy embeds external files in XML

February 17, 2011Feature Release
2011 release 2 also adds customizable documentation generation and chart creation functionality enhancements.
XMLSpy adds extended schema validation

XMLSpy adds extended schema validation

May 5, 2010Feature Release
Professional and Enterprise editions now validate naming and coding conventions and support Visual Studio 2010.