Simplify Multipart API Request Testing
Product UpdateStructured Document Tools
Altova XMLSpy 2027 extends its HTTP Tester with multipart/form-data support, simplifying API testing for requests combining files, text, and JSON.
Altova XMLSpy
Advanced XML and JSON editor with graphical design and debugging.
- Supports XML, JSON, XSD, XSLT, XQuery, and XBRL technologies.
- Includes graphical editors, auto-correction, and intelligent editing tools.
- Support for schemas, transformations, and query technologies.
Prices from:
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| Available as | Our Price |
|---|---|
| Altova XMLSpy Professional XML Editor | Loading |
| Altova XMLSpy Enterprise XML Editor | Loading |
| Also available in Altova MissionKit | |
|---|---|
| Altova MissionKit Professional Edition | Loading |
| Altova MissionKit Enterprise Edition | Loading |
Need help choosing? See How to Buy and Specification
Trial version available Contact us for a free trial
Altova XMLSpy provides a comprehensive development environment for editing, transforming, and debugging XML and JSON documents. It features a visual schema designer, intelligent editors, code generation, and support for querying and transforming data with XPath, XSLT, and XQuery, targeting enterprise-level applications across diverse data formats.
Graphical XML and JSON Editing
Offers both text-based and graphical views for XML and JSON, including XML and JSON Grid Views that simplify editing by visually presenting document structure and providing entry helpers and filters.
Schema Design and Validation
Includes drag-and-drop graphical editors for XML Schema (XSD) and JSON Schema, enabling schema creation, validation, and instance generation for robust data modeling.
Advanced Debugging and Profiling
Provides integrated debuggers and profilers for XSLT, XPath, and XQuery with back-mapping to easily trace output to source elements.
SmartFix XML Validation
Detects validation errors and offers automatic correction suggestions that can be applied with a single click.
Database Integration
Connects directly to popular SQL databases allowing querying, importing, and exporting data between XML and databases with no extra connectors required.
Web Services and XBRL Tools
Features graphical editors for WSDL and SOAP clients with debugging capabilities, along with comprehensive support for XBRL taxonomy editing, validation, and reporting.
Code Generation and Format Conversion
Supports code generation in Java, C#, and C++ from XML Schemas, plus conversion tools between XML, JSON, YAML, and Apache Avro formats.
IDE Integration and Performance
Integrates with Visual Studio and Eclipse, and leverages RaptorXML Server technology for high-performance validation and processing of large XML and JSON files.
AI-Powered Assistance
Includes an AI Assistant that uses natural language prompts to generate XML and JSON schemas, instance documents, and transformation code to accelerate development tasks.
Product Compatibility
Review the details below to ensure this product is supported within your environment.
Operating System
- Windows Desktop
- Windows Server
Windows Desktop Version
- Windows 11
- Windows 10
Windows Server Version
- Windows Server 2025
- Windows Server 2022
- Windows Server 2019
- Windows Server 2016
How to Buy
Altova XMLSpy is offered in two editions, each with a progressive set of features.
- IncludedXML Editing & Validation
- IncludedXML Viewer
- IncludedXML Differencing
- IncludedGraphical XML Schema Editor
- IncludedXSLT Debugger
- IncludedXSLT Profiler
- Not included3-way XML Differencing
- Not includedSchema-based Code Generation
- Not includedXSL Speed Optimizer
- IncludedXML Editing & Validation
- IncludedXML Viewer
- IncludedXML Differencing
- IncludedGraphical XML Schema Editor
- IncludedXSLT Debugger
- IncludedXSLT Profiler
- Included3-way XML Differencing
- IncludedSchema-based Code Generation
- IncludedXSL Speed Optimizer
Altova XMLSpy is also included in Altova MissionKit which includes Altova MapForce, StyleVision, and other market-leading products for building today’s real-world software solutions.
Altova Wins Four ComponentSource Awards
ComponentSource has awarded Altova a Top 25 Publisher Award plus three Product Awards for 2026.
Add AI Assistance Across Altova Tools
Product UpdateStructured Document Tools
Altova AI Subscription brings context-aware AI to XMLSpy, MapForce, and DatabaseSpy, helping users map data and generate SQL more efficiently.
About Altova
Altova, founded in 1992 and headquartered in Vienna, Austria, specializes in creating software components and developer applications for XML, JSON, SQL, UML, and data integration. Its portfolio features the well-known XMLSpy graphical schema designer, MapForce for data mapping, StyleVision for report design, and the MissionKit suite for cross-platform development.
With several million users, including a significant share of Fortune 500 companies, Altova's products are known for supporting a wide range of data, database, and compliance scenarios. Its components and frameworks are valued for being standards-based, platform-independent, and suitable for technical professionals in real-world scenarios.
As official and authorized distributors since 2004, ComponentSource supplies you with legitimate licenses directly from Altova.