Browse free open source XML software and projects for Windows and Mac below. Use the toggles on the left to filter open source XML software by OS, license, language, programming language, and project status.

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  • 1
    gSOAP Toolkit

    gSOAP Toolkit

    Development toolkit for Web Services and XML data bindings for C & C++

    The gSOAP toolkit is an extensive suite of portable C and C++ software to develop XML Web services with powerful type-safe XML data bindings. Easy-to-use code-generator tools allow you to directly integrate XML data in C and C++. Serializes native application data in XML. Includes WSDL/XSD schema binding and auto-coding tools, stub/skeleton compiler, Web server integration with Apache module and IIS extension, high-performance XML processing with schema validation, fast MIME/MTOM streaming, SOAP and REST Web API development, WS-* protocols (WS-Security, WS-Policy, WS-ReliableMessaging, etc), XML-RPC and JSON. Licensed under GPLv2. Visit the developer center with guides, tutorials, and examples at www.genivia.com/dev.html The documentation of the toolkit, libraries, plugins and more is available at www.genivia.com/docs.html Commercial-use licenses and expert technical support services are available at competitive pricing levels, please visit www.genivia.com/products.html
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    Downloads: 713 This Week
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  • 2

    Expat XML Parser

    Fast XML parser library in C

    PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/libexpat/libexpat This is James Clark's Expat XML parser library in C. It is a stream oriented parser that requires setting handlers to deal with the structure that the parser discovers in the document. PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/libexpat/libexpat
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    Downloads: 333 This Week
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  • 3
    lxml

    lxml

    The lxml XML toolkit for Python

    A Python library for efficient XML and HTML processing, known for speed and compatibility. The lxml XML toolkit is a Pythonic binding for the C libraries libxml2 and libxslt. It is unique in that it combines the speed and XML feature completeness of these libraries with the simplicity of a native Python API, mostly compatible but superior to the well-known ElementTree API. The latest release works with all CPython versions from 3.6 to 3.12. See the introduction for more information about the background and goals of the lxml project.
    Downloads: 33 This Week
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  • 4
    XDXF - XML Dictionary Exchange Format
    XDXF is a project to unite all existing open dictionaries and provide both users and developers with universal XML-based format, convertible from and to other popular formats like Mova, PtkDic, StarDict, ABBYY Lingvo etc. * New drafts of format can be found here: https://github.com/soshial/xdxf_makedict/tree/master/format_standard * The development of dictionary converter moved to Github: https://github.com/soshial/xdxf_makedict
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    Downloads: 84 This Week
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    RestSharp

    RestSharp

    Simple REST and HTTP API Client for .NET

    RestSharp is probably the most popular HTTP client library for .NET. Featuring automatic serialization and deserialization, request and response type detection, variety of authentications and other useful features, it is being used by hundreds of thousands of projects. RestSharp passed over 32 million downloads on NuGet, with average daily download count of 10,000. It's being used by many popular OSS projects, including Roslyn and Swagger. The main purpose of RestSharp is to make synchronous and asynchronous calls to remote resources over HTTP. As the name suggests, the main audience of RestSharp are developers who use REST APIs. However, RestSharp can call any API over HTTP (but not HTTP/2), as long as you have the resource URI and request parameters that you want to send comply with W3C HTTP standards. RestSharp can take care of serializing the request body to JSON or XML and deserialize the response. It can also form a valid request URI based on different parameter kinds.
    Downloads: 6 This Week
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  • 6
    decimal

    decimal

    Arbitrary-precision fixed-point decimal numbers in go

    Arbitrary-precision fixed-point decimal numbers in go. Note: Decimal library can "only" represent numbers with a maximum of 2^31 digits after the decimal point. The zero-value is 0, and is safe to use without initialization. Addition, subtraction, and multiplication with no loss of precision. Division with specified precision. Database/sql serialization/deserialization. JSON and XML serialization/deserialization. big.Int's API is built to reduce the number of memory allocations for maximal performance. This makes sense for its use-case, but the trade-off is that the API is awkward and easy to misuse. In contrast, it's difficult to make such mistakes with decimal. Decimals behave like other go numbers types: even though a = b will not deep copy b into a, it is impossible to modify a Decimal, since all Decimal methods return new Decimals and do not modify the originals. The downside is that this causes extra allocations, so Decimal is less performant.
    Downloads: 5 This Week
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  • 7
    The DITA Open Toolkit is an implementation of the OASIS DITA XML Specification. The Toolkit transforms DITA content into many deliverable formats. See https://www.dita-ot.org/ for documentation and links to downloads. The source code and issue trackers have been moved to https://github.com/dita-ot/dita-ot
    Downloads: 18 This Week
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  • 8
    An XML parser C library that's simple and easy to use. Inspired by simpleXML for PHP.
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    Downloads: 49 This Week
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  • 9

    SimpleXlsxWriter

    C++ library for creating XLSX files for MS Excel 2007 and above.

    This library represents XLSX files writer for Microsoft Excel 2007 and above. The main feature of this library is that it uses C++ standard file streams. On the one hand it results in almost unnoticeable memory and CPU resources consumption while processing (that may be very useful at saving a large data arrays), but on the other hand it makes unfeasible to edit data that were written. Hence, if using this library the structure of the future report should be known enough. The library is written in C++ with using STL functionality and based on the ZIP library (included), which has a free license: http://www.codeproject.com/Articles/7530/Zip-Utils-clean-elegant-simple-C-Win32 This library is distributed under the terms of the zlib license: http://www.zlib.net/zlib_license.html
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    Downloads: 16 This Week
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  • 10
    PyXB (“pixbee”) is a pure Python package that generates Python source code for classes that correspond to data structures defined by XMLSchema. In concept it is similar to JAXB for Java and CodeSynthesis XSD for C++.
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    Downloads: 15 This Week
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  • 11
    POCO C++ Libraries

    POCO C++ Libraries

    Cross-platform C++ libraries with a network/internet focus.

    NOTE: Current source code as well as bugs/patches are on GitHub: https://github.com/pocoproject/poco/ C++ class libraries for network-centric, portable applications, integrated perfectly with the C++ Standard Library. Includes network protocols (Sockets, HTTP, FTP, SMTP, POP3, etc.), SQL database access and XML parsing. Licensed under Boost license.
    Downloads: 8 This Week
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  • 12
    MActor is an extensible tool for functional integration testing. It can facilitate tests a range of integration technologies (support for JMS, XML over HTTP, SOAP, TIBCO Rv, IBM MQ series and file-shares are currently supplied with the tool)
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    Downloads: 28 This Week
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  • 13
    Fat-Free Framework
    FAT-FREE is a powerful and lightweight PHP 5.3+ Web application framework designed to help you build dynamic and robust Web sites - fast! Unlike other PHP frameworks, Fat-Free aims to be usable - not usual.
    Downloads: 5 This Week
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  • 14
    eXist-db

    eXist-db

    eXist-db is a feature rich Open Source native XML database

    eXist-db is a native XML database featuring efficient, index-based XQuery processing, extensions for keyword search, XUpdate support, XSLT support, XForms support, REST and tight integration with existing XML development tools. Moved to Github - https://www.github.com/exist-db/exist
    Downloads: 23 This Week
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  • 15
    VTD-XML is the next generation XML parser/indexer/editor/slicer/assembler/xpath-engine that goes beyond DOM, SAX and PULL in performance, memory usage, and ease of use.
    Downloads: 21 This Week
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  • 16

    data2bin

    Create structured binary files from XML data.

    Need to create binary files with data for Your program, game etc.? Tired of using hex-editor and editing the file manually with the risk of structure-mismatches? Too lazy to reedit complete file after changing structure members order or size? "data2bin" is a utility that takes: 1. Your structures description (you can use integers of different sizes and endiannesses, null-terminated text strings, fixed-size binary strings, structures, arrays...) 2. Your data in a XML file written down according to defined structure. ... and produces final binary file. It is able to pad Your strings with defined padding, check Your integers' sizes, it can fill default values where You didn't supply data, it can also, for example, put a "blank" array member at the end of an array etc. Whenever You change your structure in Your code, just update the data-description file and "rebuild" Your binary files without touching XML data files!
    Downloads: 21 This Week
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  • 17
    libxspf (formerly called "libSpiff") brings XSPF playlist reading and writing support to your C++ application. Both version 0 and 1 are supported. libxspf is the official reference implementation for XSPF of the Xiph.Org Foundation.
    Downloads: 17 This Week
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  • 18
    This Java application serves to transform W3C XML Schema instances into interactive diagrams in SVG format. The diagram represents structure of XML files and provides information about individual items – elements and attributes.
    Downloads: 4 This Week
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  • 19
    The Object-Role Modeling (ORM) standard version 2, associated schemas and generation tools, and a reference implementation in the form of the Natural Object-Role Modeling Architect for Visual Studio (NORMA) product.
    Downloads: 3 This Week
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  • 20
    An XQuery and XPath 2.0 library, written in C++ and built on top of Xerces-C.
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    Downloads: 15 This Week
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  • 21
    Simple is an XML serialization framework for Java. Its goal is to provide an XML serialization framework that enables rapid development of XML configuration and XML communication applications.
    Downloads: 3 This Week
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  • 22
    WebHarvest - web data extraction tool
    Web data extraction (web data mining, web scraping) tool. It leverages well proved XML and text processing techologies in order to easely extract useful data from arbitrary web pages.
    Downloads: 3 This Week
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  • 23
    FleXML reads a DTD describing the format of XML documents; it may be specified as a URI to the DTD on the web. From this FleXML produces a validating XML processor with an interface to support XML applications.
    Downloads: 12 This Week
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  • 24
    XAware Data Integration Project

    XAware Data Integration Project

    Create XML and JSON data services from any data source

    Create services to integrate applications & move data of any type. Build data views across DBMS, SOAP, HTTP/REST, Salesforce, SAP, Microsoft, SharePoint, Text, LDAP, FTP sources to read, write & transfer data. Eclipse designer & run-time engine.
    Downloads: 9 This Week
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  • 25
    MorganaXProc (Implements XProc 1.0)

    MorganaXProc (Implements XProc 1.0)

    A Java implementation of XProc: An XML Pipeline Language

    This project is now abandoned in favour of MorganaXProc-III which implements XProc 3.0: https://sourceforge.net/projects/morganaxproc-iiise/ MorganaXProc is a full implementation of XProc: An XML Pipeline Language (W3C Recommendation 11 May 2010) written in Java, supporting all required and optional steps, the steps proposed on EXProc.org and also the document templating steps "p:in-scope-names" and "p:template". XPath 2.0 or XPath 3.0 is used as expression language. XSLT and XQuery are supported out of the box, while a flexible connector mechanism also allows to employ your favorite XSLT and XQuery processors. The current version is 1.0.x. It is very close to the recommendation with all related tests of the XProc Test Suite passed.
    Downloads: 5 This Week
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