9 Best Free XML Editors for Mac in 2025 (Tested and Ranked)

XML isn't going anywhere. I know JSON gets all the attention these days, and for good reason, but XML is still deeply embedded in enterprise systems, configuration files, SOAP APIs, build tools like Maven and Ant, document formats like XHTML and SVG, and countless legacy systems that run critical infrastructure. If you work in any of these areas, you deal with XML regularly, and having a good editor matters.

On a Mac, the default options aren't great. TextEdit will open an XML file, but it treats it like plain text with no awareness of the structure. Xcode can handle XML, but launching a full IDE to check a config file feels like driving a semi truck to the grocery store.

I've gone through a lot of XML editors on macOS over the years, testing them on real projects involving API payloads, configuration management, build files, and data transformation. This list covers the nine I'd actually recommend, from powerful desktop apps with full schema validation to lightweight utilities for quick edits.

What Makes a Good XML Editor

XML editing has some unique requirements compared to working with simpler formats like JSON or CSV. Here's what I look for.

Well formedness checking is the bare minimum. A good XML editor should immediately tell you when you have an unclosed tag, a mismatched element name, or an illegal character. XML parsers are famously unforgiving, and catching these errors before they cause a runtime failure is the whole point of using a dedicated editor.

Schema validation separates a decent editor from a great one. If you're working with XML that follows a specific schema (XSD or DTD), the editor should validate against it and warn you when elements are missing, attributes are wrong, or the structure doesn't match the expected format. This catches logical errors, not just syntax ones.

XPath support is incredibly useful for navigating large XML documents. Being able to type an XPath expression and jump directly to the matching nodes saves massive amounts of scrolling and searching, especially in files with thousands of elements.

Tree view helps you visualize the document hierarchy. XML is inherently tree structured, and being able to collapse, expand, and navigate branches makes complex documents much more manageable than reading raw angle brackets.

XSLT support is important if you're doing XML transformations. Some editors let you run XSLT stylesheets directly, which is a real time saver compared to running transformations through command line tools or separate software.

All the tools below run on macOS and are free or have a functional free version.

The 9 Best Free XML Editors for Mac in 2025

1. Visual Studio Code

VS Code has become the default editor for a lot of developers, and with the right extensions installed, it handles XML very well.

Out of the box, VS Code gives you syntax highlighting, tag auto closing, and basic error detection for XML files. But the real power comes from the XML extension by Red Hat, which transforms VS Code into a capable XML development environment. This extension adds full XSD and DTD validation, XPath evaluation, document formatting, auto completion based on schema definitions, and hover documentation for elements and attributes.

Setting it up takes about two minutes. Install the extension from the marketplace, point it at your schema file (either through a setting or an in document reference), and you're good. From that point on, you get real time validation as you type, with detailed error messages that tell you exactly what's wrong and where.

The integrated terminal is also useful for XML work. You can run quick XPath queries using command line tools like xmllint right alongside your editing, without switching windows. And if your XML files live in a version controlled project, VS Code's built in Git support makes tracking changes straightforward.

The downside is the same one it has for any specialized task: VS Code is a general purpose editor. It's not going to match a purpose built XML IDE in terms of advanced features like visual schema designers or built in XSLT debugging. But for the vast majority of XML editing tasks, it's more than enough.

Download: Download VS Code - Free and open source

2. Sublime Text with XML Plugins

Sublime Text's core strength has always been speed, and that advantage really shows when working with large XML files. It opens multi megabyte XML documents almost instantly while other editors are still loading, and scrolling through hundreds of thousands of lines feels smooth and responsive.

The built in XML support covers syntax highlighting and code folding. You can collapse entire element trees to get an overview of the document structure, which is essential when navigating complex XML files. The multi cursor feature is particularly powerful for XML editing. Need to rename a tag across dozens of elements? Select the first instance, use the keyboard shortcut to select all matching instances, and type the replacement. Done in seconds.

For additional XML capabilities, install packages through Package Control. Indent XML gives you automatic formatting, XPath adds path based navigation, and SublimeLinter with xmllint provides validation against DTD schemas. The combination gives you a lightweight, fast XML environment.

Sublime's free version is fully functional with occasional purchase prompts, which is a fair deal. The editor is available as a native macOS app and feels right at home on the platform.

Where Sublime falls short is in advanced XML features like XSD based auto completion or visual schema browsing. It's a text editor that handles XML well, not an XML IDE. But if editing speed is what you care about most, nothing on this list matches Sublime.

Download: Download Sublime Text - Free version with occasional purchase prompts

3. Oxygen XML Editor (Community Resources)

Oxygen XML Editor is the gold standard for professional XML development. It's worth including here because while the full product is commercial, Oxygen offers a 30 day free trial that gives you complete access to every feature. If you're doing serious XML work and need to evaluate the best tool available, the trial is worth your time.

What makes Oxygen stand out is the depth of its XML support. You get full schema aware editing with auto completion, validation against XSD, DTD, RelaxNG, and Schematron schemas, built in XSLT and XQuery debugging, visual XML schema designers, XML diff and merge tools, and database integration for XML databases like eXist and MarkLogic.

The XPath and XQuery evaluation tools are best in class. You can write complex queries, execute them against your document, and see the results highlighted in context. For anyone working with large, schema driven XML ecosystems (think healthcare data, financial messaging standards, or publishing workflows), Oxygen is the most complete tool available.

The 30 day trial has no feature limitations. After that, you'd need to purchase a license. For professionals who work with XML daily, the investment pays for itself quickly. For occasional XML editing, the other free tools on this list will serve you well.

Download: Try Oxygen XML Editor - 30 day free trial, full featured

4. BBEdit

BBEdit has been a Mac staple since the early 1990s, and it remains one of the best native text editors for the platform. For XML work, it offers a combination of speed, reliability, and macOS integration that's hard to match.

BBEdit's XML support includes syntax highlighting, code folding, well formedness checking, and the ability to apply XSLT transformations directly from the editor. The text transformation features are powerful: you can use grep patterns (BBEdit's term for regex) to find and replace across XML content with a level of precision that's genuinely impressive.

One thing I particularly appreciate about BBEdit is its handling of character encodings. XML files come in various encodings, and BBEdit correctly detects and handles UTF-8, UTF-16, and other encodings without you needing to manually intervene. It also respects the encoding declaration in the XML prolog, which is a detail that some editors overlook.

The free version of BBEdit (which replaced TextWrangler) is surprisingly capable. You lose some advanced features like multi file search and text transformation recording, but for XML editing, the free version covers everything you need. The full paid version adds those power features and is worth it if you use the editor heavily.

BBEdit is a true macOS native app. It follows Apple's design conventions, supports macOS features like Quick Look and Spotlight integration, and feels like it belongs on the platform. If you value that native Mac experience, BBEdit delivers.

Download: Download BBEdit - Free version available

5. XML Notepad (via Wine or Mono)

XML Notepad is a free, open source XML editor originally built by Microsoft. It's technically a Windows app, but it runs on macOS through Mono or Wine, and the experience is surprisingly usable.

The standout feature is the side by side tree and text view. The left panel shows your XML document as a collapsible tree, and the right panel shows the corresponding attributes and values. You can navigate by clicking through the tree, and the text editor updates to show you exactly where you are in the document. It's a genuinely intuitive way to explore and edit complex XML structures.

XML Notepad also supports XSD schema validation, XPath queries, XSLT transformations, and comparison between XML files. The diff view is useful when you need to check what changed between two versions of a configuration file.

The setup on Mac requires a few extra steps compared to native apps. You'll need to install Mono or use Wine to run it, which adds a small friction to getting started. The interface also looks distinctly Windows like, which can feel a bit out of place on macOS. But once it's running, the functionality is solid and the tool itself is very well made.

If you don't mind the non native look and the initial setup, XML Notepad is one of the most thoughtfully designed free XML editors available on any platform.

Download: Download XML Notepad - Free and open source

6. Brackets

Brackets was originally created by Adobe as a modern, open source code editor focused on web development. While Adobe has stepped back from active development, the community has continued maintaining it, and it remains a clean, lightweight editor that handles XML well.

The interface is minimal and uncluttered. You get syntax highlighting, code folding, and inline editing for XML files right out of the box. The live preview feature, while primarily designed for HTML, also works for XML when you want to see how your document renders in a browser.

Brackets has an extension manager where you can add XML specific features. There are extensions for XML formatting, validation, and tree view navigation. The editor is lightweight and opens quickly, making it a good option for quick XML edits when you don't want the overhead of a full IDE.

The honest reality is that Brackets isn't actively developed by a major company anymore, so the ecosystem isn't growing the way VS Code's is. But the core editor is stable, the XML support is adequate for everyday tasks, and if you prefer a clean, focused editing experience without the feature overload of VS Code, Brackets still has its place.

Download: Download Brackets - Free and open source

7. Online XML Editor by CodeBeautify

Sometimes you need to check an XML file quickly without opening any application. Maybe someone sent you an XML payload in an email, or you just need to validate a snippet before pasting it into a config. CodeBeautify's online XML editor handles that perfectly.

You paste your XML into the editor (or upload a file), and it instantly formats and validates the content. You get a tree view alongside the text editor, syntax highlighting, and clear error messages when something is malformed. There are also tools for converting between XML and JSON, minifying or beautifying the output, and generating XSD schemas from sample XML.

I use this primarily for two things: quick validation and format conversion. When I receive an XML response from an API and just want to check if it's valid and see it formatted nicely, CodeBeautify loads faster than opening a desktop app. And the XML to JSON converter is handy when I need to transform data between formats.

The limitations are the same as any online tool: you need internet access, you shouldn't paste sensitive data, and performance degrades with larger files. But for quick, everyday XML tasks, it's extremely convenient.

Check it Out: Try CodeBeautify XML Editor - Free online tool

8. Emacs with nXML Mode

Emacs might seem like an unusual recommendation in 2025, but for XML editing, its nXML mode is genuinely one of the most capable free options available on any platform. If you're already an Emacs user, you might not need anything else for XML work.

nXML mode provides real time schema aware validation against RelaxNG schemas (and you can convert XSD to RelaxNG using a bundled tool). As you type, it validates your document against the schema and shows errors immediately. The auto completion is context aware, meaning it suggests only the elements and attributes that are valid at your current cursor position based on the schema. That's a level of intelligence that many dedicated XML editors don't match.

The XPath support is available through additional packages, and Emacs's powerful search, replace, and macro capabilities make batch XML editing incredibly efficient. If you need to apply the same structural change across 200 XML files, an Emacs macro can do it in minutes.

The learning curve is significant if you're not already an Emacs user. The keyboard driven interface and the configuration complexity can be daunting. But for people who are already comfortable with Emacs, nXML mode is a hidden gem that outperforms many commercial XML editors in terms of validation accuracy and editing efficiency.

Download: Download Emacs for Mac - Free and open source

9. TextMate

TextMate is a macOS native text editor that helped define what a modern code editor should look like. It was groundbreaking when it launched, and while VS Code and Sublime have taken much of its spotlight, TextMate remains a solid, lightweight option for XML editing on Mac.

The editor provides syntax highlighting, code folding, and snippet support for XML. The bundle system lets you add XML specific functionality like formatting, validation, and transformation. TextMate's snippets are particularly useful for XML work: you can create templates for commonly used element structures and insert them with a few keystrokes.

TextMate is now open source and completely free. It's a native Cocoa application, so it integrates perfectly with macOS. It uses minimal system resources, opens instantly, and handles large files well. The columnar editing feature is handy when you need to edit attributes or values across multiple similar elements.

The limitations are straightforward: TextMate doesn't have the extension ecosystem of VS Code or the speed of Sublime. Its community is smaller, and fewer people are actively building plugins for it. But as a clean, fast, native Mac editor for XML work, it still holds its own.

Download: Download TextMate - Free and open source

XML Editor Comparison Table (2025)

Tips for Working with XML Files on Mac

Here are some things that have made my XML workflow smoother over the years:

Validate before you deploy. XML parsers are strict. A single unclosed tag or an ampersand that isn't escaped will cause a parse failure. Always validate your XML in your editor before committing or deploying it. The few seconds it takes to run validation can save you from debugging a production error.

Use xmllint from the terminal. macOS comes with xmllint pre installed. You can validate XML files with

xmllint --noout yourfile.xml

xmllint --format yourfile.xml

xmllint --xpath "//elementName" yourfile.xml

Understand namespaces before they confuse you. Namespace issues are one of the most common sources of frustration with XML. If your XPath queries aren't returning results even though the elements clearly exist, namespaces are almost always the reason. Take the time to understand how default namespaces and prefixed namespaces work, and how to handle them in your editor's XPath tool.

Use schema validation when available. If you have an XSD or DTD for your XML format, load it into your editor. The auto completion and validation that schema awareness provides catches structural errors that simple well formedness checking misses entirely.

Conclusion

Those are the nine XML editors I'd recommend for Mac in 2025. Quick summary: VS Code with the Red Hat XML extension is the best free all rounder, Sublime Text wins on speed and handling large files, and Oxygen XML Editor is in a class of its own if you need professional grade XML tooling (use the trial to see if it's worth the investment).

For most developers, VS Code with the XML extension covers everything you'll need. Add BBEdit or Sublime as a secondary editor for quick edits and large files, and you'll have a setup that handles any XML task.

Interested in comparing data formats? Check out our detailed JSON vs XML vs YAML comparison to understand when each format makes the most sense.

Related Guides:

Best JSON Editor for Mac if you're looking for JSON tools on macOS

Best CSV Editor for Mac for the top CSV editing tools on Mac