Convert TOML to XML Online Free

Transform TOML configuration files into XML format. Useful for integrating with Java ecosystems, SOAP services, or any system that requires XML-structured data.

By ChangeThisFile Team · Last updated: March 2026

Quick Answer

To convert TOML to XML, drop your .toml file onto the ChangeThisFile converter. TOML tables become XML elements and key-value pairs become child elements with text content. This free tool runs in your browser and never uploads your configuration data.

Free No signup required Files stay on your device Instant conversion Updated March 2026

Convert TOML to XML

Drop your TOML file here to convert it instantly

Drag & drop your .toml file here, or click to browse

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TOML vs XML: Format Comparison

Key differences between the two formats

Feature	TOML	XML
Syntax	Key = value with [table] sections	Angle-bracket tags with opening/closing pairs
Verbosity	Concise, minimal syntax overhead	Verbose with repeated tag names
Data types	Native strings, integers, floats, booleans, dates	All content is text without schema
Arrays	Square brackets or [[array of tables]]	Repeated sibling elements
Validation	No built-in schema system	XSD, DTD, RelaxNG for strict validation
Namespaces	Not supported	Full namespace support for large systems
Comments	# line comments	<!-- block comments -->
Ecosystem	Rust, Python, Hugo, modern tools	Java, .NET, SOAP, enterprise systems

When to Convert

Common scenarios where this conversion is useful

Integrating with Java and .NET systems

Enterprise Java and .NET applications commonly use XML configuration. Convert TOML settings to XML for compatibility with Spring, Hibernate, or ASP.NET.

Generating SOAP request payloads

SOAP web services require XML-formatted requests. Convert TOML-structured data into XML payloads for SOAP API testing and integration.

Creating Maven or Ant build configs

Convert project settings stored in TOML into XML format suitable for Maven pom.xml or Ant build.xml files.

Data export for XML-based workflows

Convert TOML data files to XML for import into systems that accept XML input, such as content management systems or document processing tools.

Who Uses This Conversion

Tailored guidance for different workflows

Developers

Convert TOML config files to XML for compatibility with different tools or frameworks
Transform TOML API responses to XML for debugging, logging, or documentation

Validate the converted XML output with a linter to catch any structural issues from the conversion

Watch for data type coercion (e.g., numbers becoming strings) when converting between TOML and XML

Data Analysts

Convert TOML exports to XML for importing into spreadsheet software, databases, or BI tools
Transform TOML datasets to XML for sharing with teammates who use different analysis tools

Check that column delimiters and quote escaping are handled correctly in the converted XML file

Preview the first few rows of the XML output to verify headers and data alignment

System Administrators

Convert TOML configuration to XML when migrating between infrastructure tools or platforms
Transform TOML log exports to XML for ingesting into monitoring or analysis systems

Back up the original TOML config before converting, especially for production systems

Test the converted XML in a staging environment before deploying to production

How to Convert TOML to XML

1

Drop your TOML file

Drag and drop your .toml file onto the converter, or click to browse. Standard TOML v1.0 syntax is fully supported.
2

Instant conversion

TOML tables become XML parent elements. Key-value pairs become child elements with text content. Arrays become repeated sibling elements.
3

Download your XML

Click Download to save the .xml file. The output is properly indented with an XML declaration header.

Frequently Asked Questions

How are TOML tables converted to XML?

Each [table] section becomes an XML parent element. Keys within the table become child elements. For example, [server] with port = 8080 becomes <server><port>8080</port></server>.

How are TOML arrays handled?

TOML arrays become repeated XML elements with the same tag name. Array of tables [[items]] become repeated <items> elements each containing their key-value child elements.

Are TOML data types preserved in XML?

XML treats all content as text by default. TOML integers, floats, booleans, and dates are converted to their string representation in XML element text.

Does the output include an XML declaration?

Yes. The output starts with <?xml version="1.0" encoding="UTF-8"?> followed by a root element containing your converted TOML data.

What becomes the XML root element?

A <root> element wraps the entire output. Top-level TOML keys become direct children of this root element.

Are TOML comments preserved?

No. TOML comments are not carried into the XML output. You can add XML comments manually after conversion if needed.

How are TOML dotted keys handled?

Dotted keys like database.host are expanded into nested XML elements: <database><host>value</host></database>.

Can I convert TOML with inline tables?

Yes. Inline tables are expanded into standard XML element nesting, the same as regular TOML tables.

How are multi-line strings handled?

TOML multi-line strings are output as XML text content with the line breaks preserved in the element body.

Is my configuration data secure?

Yes. The conversion runs entirely in your browser. Your TOML files, which may contain sensitive settings, are never sent to any server.

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Need to convert programmatically?

Use the ChangeThisFile API to convert TOML to XML in your app. No rate limits, up to 500MB files, simple REST endpoint.

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