Best Free XML Editors of 2025

Notepad++ serves as a free alternative to traditional Notepad and is designed for editing source code across various programming languages. Functioning within the Microsoft Windows ecosystem, it operates under the terms of the GNU General Public License. The editor is built on the robust Scintilla editing framework and is developed using C++, making use of the pure Win32 API and Standard Template Library (STL) to achieve enhanced execution speed and a compact file size. By optimizing numerous processes while maintaining user-friendliness, Notepad++ aims to contribute to the reduction of global carbon dioxide emissions. The software’s efficiency allows computers to use less CPU power, enabling them to operate at lower energy levels, which in turn leads to reduced power consumption and a more sustainable environment. This approach exemplifies how software development can align with eco-friendly initiatives.

XiMpLe is an XML and JSON editor based on a table grid view (the same nodes are arranged in tables). The editor is free for non-commercial use and it can be used without installation. Additional features: - XML splitter, XML joiner for large xml files - XML comparator with a merge feature - Validation with XSD schemas in a comfortable view - Creating and running scripts (only for commercial use) Minimal preparation: no installation, one file (1.4MB), place it somewhere on your hard disk or flash-drive and run it. It should run on Win 7, 8, 10 and 11 (using .NET Framework 4.5).

Komodo Edit serves as an excellent choice for those seeking a powerful and straightforward editor. On the other hand, Komodo IDE offers advanced features like debugging, unit testing, code refactoring, and code profiling for more complex development needs. As software vendors increasingly serve as the first line of defense against security threats, even a single compromised update can expose countless customers to potential cyberattacks. Avoid becoming another SolarWinds incident by opting for comprehensive solutions. Instead of juggling multiple discrete tools and bespoke coding, the ActiveState Platform offers a ready-made solution that helps safeguard the security and reliability of the open source components you utilize and manage. This proactive approach not only enhances security but also streamlines your development process, allowing you to focus on building innovative solutions.

To begin, upload your XML file to the online XML editor using one of the available methods from the menu; you can either paste the data directly into the Input Box, select a file from your local storage, or retrieve it from the internet via a URL. Once the XML data has been successfully uploaded, it will be presented in a structured hierarchical XML Grid, allowing for straightforward navigation through the tree structure. Users have the ability to add, modify, or remove any nodes or branches within this structure. If you wish to preserve your edited XML document, simply select the Save option from the menu, and the XML data will be formatted neatly for you. After loading your XML data into the Online Editor, it will undergo validation to ensure compliance with W3C XML 1.0 specifications, providing peace of mind regarding its correctness. This comprehensive process ensures that your XML files are both user-friendly and adherent to established standards.

XML Notepad offers a user-friendly interface designed for the straightforward browsing and editing of XML files. It features a synchronized Tree View and Node Text View, allowing for rapid adjustments to node names and values. Users can easily manipulate the tree structure through drag-and-drop functionality, which works smoothly even between different XML Notepad instances and the file system. The application demonstrates impressive performance with large XML documents, capable of loading a 3MB file in approximately one second. As you edit, instant XML schema validation occurs, displaying any errors and warnings in the task list window for immediate attention. The tool includes Intellisense to assist with expected elements, attributes, and predefined simple type values, enhancing the editing experience. Additionally, it supports custom editors tailored for various data types, including date, dateTime, time, and even color. Users can conveniently adjust node positions with nudge tool buttons for effortless navigation up and down the tree. Furthermore, the "XML statistics" feature provides a useful summary of the contents of your XML documents, making it easier to track key information at a glance. This combination of features makes XML Notepad an effective tool for anyone needing to work with XML data regularly.

Liquid Studio offers advanced tools for XML/JSON development, Web Service Testing, Data Mapping and Data Transformation tools. The Development Environment includes a complete set tools to design XML and JSON data schemas and structures. These tools allow for editing, validating, and advanced transformation capabilities. The intuitive interface and extensive features will make it easy for novices and experts to save time and money while delivering successful projects. An intuitive user interface allows you to visualize and edit an abstracted view for your XML schema (XSD). It also validates your XSD against W3C standards. An intuitive user interface allows you to visualize and edit an abstracted view for your JSON schema. You can also validate your JSON Schema against IETF standards.

In contemporary settings, XML stands as a prevalent standard for multimedia and cross-platform technical document publishing. A multitude of editing applications, management systems, and publication tools, along with various industry standards, rely heavily on XML. Despite its widespread adoption, XML has struggled to gain traction in certain domains due to its distinct separation between document structure and layout. Editors often lean towards using word processors like Microsoft Word, where text and formatting are developed concurrently, allowing for immediate visual feedback. Conversely, XML demands a more abstract mindset, as the content is interspersed with structural tags, with the layout being established only in later production phases. In contrast, SimQin enhances the user experience by presenting documents in layout mode from the beginning while also revealing the underlying XML structure and organization. This dual visibility can streamline the editing process and potentially increase XML's appeal among users accustomed to traditional word processing tools.

EditRocket is an all-in-one text and source code editor compatible with macOS, Windows, and Linux, equipped with a variety of XML editing features aimed at improving user efficiency and convenience. Among its tools, the XML Validator allows users to verify the syntax of XML files and, when the "check schema" option is activated, validate them against defined schemas. The XML Tag Navigator analyzes the content within the editor and presents XML tags in a clickable format, enabling users to quickly navigate to specific tag locations in the document. The XML Sidekick includes tabs for coding inserts, utilities, and the XML Tag Navigator, facilitating the rapid insertion of XML elements through buttons or customizable keyboard shortcuts. Furthermore, EditRocket incorporates XML Tag Completion, which automatically adds closing tags after an opening tag is typed, with an adjustable delay for completion. In addition to its XML capabilities, EditRocket provides syntax highlighting for more than 20 programming languages and includes helpful coding sidekicks and tools for building code, making it a versatile choice for developers. Overall, EditRocket stands out as a powerful solution for anyone looking to streamline their coding process.

Xmplify is a native macOS application built for 64-bit systems, designed to offer a comprehensive XML editing experience. It enhances the user experience by providing intelligent editing aids and real-time suggestions based on the XML content being worked on. The application includes an outline view that visually represents the document’s structure and dynamically updates as changes are made. When working with documents containing a DTD or XML Schema, Xmplify automatically validates the content and provides auto-completion features that are informed by the document’s definitions, along with relevant documentation for each suggestion. If a DTD or Schema is not available, Xmplify is capable of deriving one on its own, which aids in maintaining accurate auto-completion. In addition to these functionalities, the application allows for swift navigation to element definitions, supports XSL transformations through both integrated and external processors, offers live web previews for (X)HTML documents, and includes robust search functionalities utilizing XPath and regular expressions. This combination of features makes Xmplify an invaluable tool for developers and writers working with XML.

XmlPad serves as a sophisticated editor designed for processing XML documents, enabling users to display data in a tabular format. This tool features a text editor equipped with syntax highlighting, string numbering, element collapsing, and autocompletion functionalities. It also includes a comprehensive table editor that greatly enhances the efficiency of document processing on tablet devices. Additionally, XmlPad supports autoformatting and XML validation according to various standards such as DTD, XSD, RelaxNG, and Schematron, while simultaneously highlighting any errors found in the document's text. Users can execute XQuery queries and perform XSLT transformations seamlessly. The integrated command console facilitates the execution of curl commands and other basic file operations. Moreover, the table editor streamlines the creation of XML documents with just a few taps, features a content panning option, and maintains synchronization with the document's textual representation, thereby enhancing the overall user experience. The combination of these features makes XmlPad a powerful tool for anyone working with XML data.

ExtendsClass offers a range of tools that can be accessed directly through your web browser, eliminating the need to install additional add-ons for enhanced functionality. These tools include syntax validators, code formatters, testing utilities, HTTP clients, a mock server, and even a SQLite browser. They are designed to be user-friendly and lightweight, making them ideal for situations where you prefer not to download software onto your computer. Among the various functionalities, users can convert data formats such as CSV, TSV, XML, and JSON, as well as compare different data types like Text, XML, and JSON. Additionally, the platform provides options for formatting XML and JSON data, alongside capabilities for encoding and decoding base64 data. With such a diverse toolset readily available, developers can streamline their workflow without the hassle of installation.

Online XML tools provide a set of practical utilities designed for handling Extensible Markup Language documents and data formats. These tools are user-friendly, completely free, and devoid of any annoying ads or popups. You can access these XML utilities directly in your browser, and they all operate in a consistent manner — simply upload your XML, and you will receive the results. One standout feature is the free online XML beautifier, which allows you to load your XML, and it will be automatically formatted for better readability. With no distractions like ads or popups, this XML prettifier offers a seamless experience. To use it, just load your XML and watch it transform into a more organized format. This resource was developed by a team of programmers at Browserling specifically for fellow developers. Additionally, the tools cater to a wide range of XML-related tasks, ensuring that users have everything they need at their fingertips.

Liquid XML Data Binder allows you to load XML Documents in a strongly-typed object model from your C#, C++ Java, Visual Basic.Net, or VB6 source code. This means fewer coding mistakes, reduced development and test time, and increased schema conformance and code reliability. Liquid XML Data Binder Features: - Generates a class library that is easy to use for C++, C# Java, Visual Basic.Net and VB 6(COM) from an XML schema. - Generated HTML documentation of your class library API. - Supports Smart Device Platforms Android and iOS. - Supports W3C XML Schema, XDR, and DTD standards. - Supports generating WCF Web Services using WSDL. Supports JSON serialization. - Supports Fast Infoset binary XML Serialization. - Support the most complex XML standard. - Distribution of compiled code, runtime and other software without any additional fees.

CodeBeautify is designed to enhance, compress, and transform your code or data to achieve the desired output. The visibility settings dictate how a program can be viewed on codebeautify.org and who is permitted to access it. By clicking the Save Online Button, anyone can access the code, which will then appear on the recent page. Each user has access to their own code through a unique link, although this personal code is not displayed on the user's recent page, ensuring privacy for individual projects. This functionality allows users to efficiently manage their code while maintaining control over its accessibility.