XML Formatter
Formatters & BeautifiersIndent and prettify XML documents for readability
How to Use This Tool
Paste your code
Copy your unformatted XML content and paste it into the left-hand input panel.
Instant formatting
The tool processes your input automatically as you type — no button click needed. Formatted output appears on the right in real time.
Copy or download
Click "Copy" to copy the formatted result to your clipboard, or click "Download" to save the file directly to your computer.
Fix errors
If the input contains syntax errors, a clear error message will appear explaining what went wrong and where, so you can fix it quickly.
About This Tool
XML Formatter is a free, instant, browser-based tool that indent and prettify xml documents for readability. Formatting code is one of the most fundamental steps in any developer's workflow. Poorly formatted code is harder to read, harder to debug, and harder to maintain. Whether you're dealing with minified production output, code received from a third-party API, or simply a messy draft, a good formatter transforms it into clean, consistently indented, human-readable text in an instant.
This tool runs entirely in your browser using JavaScript. Nothing you paste is ever sent to a server — your data stays completely private. There are no rate limits, no account required, and no cost. You can format as much code as you like, as often as you like.
Developers use formatters during debugging sessions to make dense output readable, in code reviews to normalize style, when reading minified library source code, and when documenting or sharing code snippets with teammates. Formatted code is also easier for static analysis tools and linters to process.
Browser-based formatters are especially useful when working on machines where you don't have your usual editor or extensions installed — such as on a colleague's computer, a shared workstation, or a cloud-based IDE. Bookmark this tool and you'll always have a reliable formatter a click away, no matter where you're coding.
XML Formatter is essential when working with SOAP APIs, RSS feeds, SVG files, or any legacy system that outputs dense XML. Properly indented XML is far easier to audit, modify, and document. This tool saves you from manually adding indentation or loading a heavyweight editor just to read a configuration file.
Why Use This Tool?
XML Formatter is essential when working with SOAP APIs, RSS feeds, SVG files, or any legacy system that outputs dense XML. Properly indented XML is far easier to audit, modify, and document. This tool saves you from manually adding indentation or loading a heavyweight editor just to read a configuration file.
Common pitfalls and gotchas
The mistakes that come up repeatedly when working with formatters & beautifiers tools — most of them invisible until they cause production failures or silent data corruption.
Trusting auto-format on ambiguous syntax
Some inputs are syntactically valid but semantically ambiguous — YAML's Norway problem (`NO` parses as boolean false), JavaScript's automatic-semicolon-insertion edge cases, SQL's locale-dependent string concatenation operators. A formatter normalizes whitespace; it cannot fix logic bugs introduced by the original author. Always run your formatted output through your normal test suite before committing.
Format-then-edit-by-hand cycles
Re-running a formatter on hand-edited code can shift indentation in ways that show as huge diffs in pull requests, even when the actual logic change is two lines. Configure your team's formatter once at the project root, run it consistently in pre-commit hooks, and never let two engineers in the same project use different formatter settings.
Formatter output that breaks long-string literals
Aggressive line-wrapping inside long string literals can introduce escape-sequence mismatches in some languages. JSON formatters preserve string content exactly; some HTML and CSS formatters re-wrap long URL strings or embedded data in ways that mangle them. Inspect long literals after formatting if they matter.
Frequently asked questions
Does formatting change the meaning of my code?
No. A correct formatter only changes whitespace, indentation, and line breaks — never the actual tokens, structure, or logic. Run your formatted output through your normal test suite to verify, but the formatter itself doesn't introduce semantic changes.
Can I customize the formatting style?
This tool uses widely-accepted defaults — typically 2-space indentation, sensible line lengths, and conventional placement of braces. For project-specific rules, use a configurable formatter in your build pipeline (Prettier, Black, gofmt, rustfmt) where you can commit a config file shared by your team.
Will the formatted output break my version control diffs?
If you've never run the formatter on a file, the first format produces a large diff. Once formatted, subsequent edits produce clean diffs because the formatter is deterministic — same input produces the same output. Format the entire codebase in a single dedicated commit, then enforce formatting going forward via pre-commit hooks.
Is anything I paste sent to a server?
No. Formatting happens entirely in your browser using JavaScript. Your code is not transmitted anywhere — you can verify this by inspecting your browser's Network tab while using the tool.
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