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A full-featured XML editor with syntax highlighting, real-time validation, auto-formatting, and error markers — all running locally in your browser.
Editing XML in a plain text editor or an IDE without XML support is error-prone — mismatched tags, forgotten closing brackets, and incorrect attribute quoting are easy mistakes to make. A dedicated XML editor detects these errors in real time and shows you exactly where the problem is, saving significant debugging time.
JSON Viewer Pro's online XML editor is built on Monaco Editor — the same engine that powers Visual Studio Code. It gives you full XML syntax highlighting, code folding for nested elements, automatic bracket matching, find and replace, and real-time validation with error markers on the exact character where a problem occurs. Format or minify XML with a single click.
The XML editor stores everything locally in your browser. No XML is uploaded to any server, and the editor works fully offline after the first page load. You can upload XML files, drag and drop them, or paste XML directly and start editing immediately.
Yes. Monaco Editor handles large files efficiently, and validation uses the browser's native parser which is also fast on large documents.
Monaco provides basic XML editing features. Advanced schema-based autocomplete is on the roadmap.
Yes. Use the Open button or drag and drop your file into the editor.
JSON Viewer Pro — all processing runs locally in your browser. Your data is never sent to any server. Free to use, no account required.Privacy Policy·Contact