Convert XML to TOML Online Free
Transform XML configuration and data files into clean TOML format. Convert verbose XML markup into concise TOML key-value pairs and tables.
To convert XML to TOML, drop your .xml file onto the ChangeThisFile converter. XML elements become TOML tables and key-value pairs, with attributes preserved as keys. This free browser-based tool processes your data locally and never uploads it to any server.
Convert XML to TOML
Drop your XML file here to convert it instantly
Drag & drop your .xml file here, or click to browse
Convert to TOML instantly
XML vs TOML: Format Comparison
Key differences between the two formats
| Feature | XML | TOML |
|---|---|---|
| Syntax | Angle-bracket tags with opening/closing pairs | Key = value with [table] sections |
| Verbosity | Very verbose (opening + closing tags) | Concise, minimal syntax |
| Attributes | Supported on elements | No equivalent (use nested keys) |
| Namespaces | Full namespace support | Not supported |
| Data types | All content is text (schema defines types) | Native strings, integers, floats, booleans, dates |
| Comments | <!-- comment --> | # line comment |
| Validation | XSD, DTD, RelaxNG schemas | No built-in schema validation |
| File size | Large due to repeated tag names | Compact, keys written once per table |
When to Convert
Common scenarios where this conversion is useful
Migrating Java/Spring configs to modern formats
Convert legacy XML configuration files from Java, Spring, or Maven projects into TOML for modern tools that prefer simpler config formats.
Converting build system configs
Transform XML-based build configurations (like Ant or older Maven POMs) into TOML format for newer build tools.
Simplifying data interchange files
Convert XML data exports into TOML when you need a human-readable format without the verbosity of XML tags.
Extracting settings from XML for Rust projects
Pull configuration values from XML files and convert them to TOML for Cargo.toml or application config in Rust projects.
How to Convert XML to TOML
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1
Drop your XML file
Drag and drop your .xml file onto the converter, or click to browse. Well-formed XML with proper nesting is required.
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2
Instant conversion
XML elements become TOML tables. Text content becomes string values. Attributes are converted to key-value pairs within the table.
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3
Download your TOML
Click Download to save the .toml file. The output uses standard TOML formatting with proper section headers and quoting.
Frequently Asked Questions
Each XML element becomes a TOML table or key. Leaf elements with text content become key-value pairs. Elements with children become [table] sections.
Attributes are converted to key-value pairs within the corresponding TOML table, typically prefixed with '@' to distinguish them from child elements.
TOML does not support namespaces. Namespace prefixes are included in the key names, but the namespace URIs are not preserved.
Repeated elements with the same tag name become TOML arrays of tables using [[double bracket]] notation.
No. XML comments are stripped during parsing and do not appear in the TOML output.
CDATA content is treated as regular text content and becomes a TOML string value, with multi-line content using triple-quoted strings.
The converter runs in your browser, so it handles moderately sized XML files well. Very large XML documents (over 50MB) may be slow depending on your device.
Mixed content (text interspersed with child elements) is simplified. Text content is extracted and child elements are converted to nested tables.
No. The XML declaration (<?xml version='1.0'?>) and processing instructions are not relevant to TOML and are stripped during conversion.
Yes. The conversion happens entirely in your browser. Your XML data is never sent to any server, keeping sensitive configuration data private.
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