TOML to XML Converter
Convert TOML (Tom's Obvious, Minimal Language) configuration files to XML format. Perfect for migrating Rust/Python project configs to XML-based systems with full control over element naming and formatting.
Conversion Options
Recommended Settings
TOML to XML Migration
- •Convert Cargo.toml or pyproject.toml to XML for legacy build systems
- •TOML tables become XML elements with nested child elements
- •Array of tables [[section]] converts to repeated XML elements
- •Use unwrap arrays for RSS/SOAP-style repeated elements
- •Pretty print makes XML human-readable for documentation
XML Format Considerations
- •XML requires single root element - use meaningful root name
- •Element names must start with letter/underscore (TOML keys auto-sanitized)
- •Special characters (&, <, >, ", ') are automatically escaped
- •Use CDATA sections for multiline strings or strings with special chars
- •Type attributes preserve data types for round-trip conversion
Pro Tips
- •TOML nested tables become nested XML elements automatically
- •Dates from TOML are converted to ISO 8601 strings in XML
- •Sort keys option creates alphabetically ordered XML elements
- •All conversion happens client-side - your config files never leave your browser
Most Popular
Pretty print enabled with XML declaration and 2-space indentation
When to Use This Tool
Convert TOML configuration files to XML for older enterprise systems that only accept XML. Perfect for migrating Rust or Python projects to environments requiring XML configs like Maven, Ant, or Spring Framework.
Transform Rust project Cargo.toml files to XML format for custom build tools or CI/CD systems that process XML configs. Extract dependency information, metadata, and build settings in XML structure.
Convert Python project pyproject.toml to XML for tools that require XML-based project configuration. Useful when integrating Poetry or modern Python projects with legacy Java-based build systems.
Transform TOML app configs to XML for deployment to systems requiring XML. Common in enterprise environments where configuration management tools standardize on XML format for consistency.
Convert TOML data to XML for EDI (Electronic Data Interchange), SOAP services, or other XML-based protocols. TOML's readability combined with XML's enterprise adoption creates flexible data pipelines.
Generate XML from TOML for documentation tools that consume XML. Transform human-friendly TOML configs into XML for processing with XSLT, XPath, or documentation generators.
How It Works
Parse TOML input using robust TOML parser
Validate XML element names (root and array item names)
Convert TOML tables to XML elements with nested children
Transform TOML array of tables [[section]] to repeated XML elements or container
Sort keys alphabetically if option enabled
Escape special characters (&, <, >, ", ') or wrap strings in CDATA
Apply pretty print formatting with specified indentation
Add XML declaration (<?xml version="1.0"?>) if enabled
Copy to clipboard or download as .xml file
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Files never leave your device. All processing happens locally in your browser.
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Frequently Asked Questions
How are TOML tables converted to XML?
TOML tables with [section] headers become XML elements with nested children. For example, [database] becomes <database>...</database> with child elements for each key-value pair. Nested tables like [database.connection] become nested XML elements.
What happens to TOML array of tables [[section]]?
TOML array of tables [[section]] converts to repeated XML elements. With 'unwrap arrays' enabled, you get multiple <item> elements. Without it, you get a container element with <item> children. This matches how RSS and SOAP handle repeated data.
How are TOML data types preserved in XML?
Enable 'Add type attributes' to preserve TOML data types (string, integer, float, boolean, datetime). Without it, everything becomes text in XML. Type attributes allow round-trip TOML→XML→TOML conversion without data loss.
Can I convert Cargo.toml or pyproject.toml files?
Yes! This tool handles any valid TOML file including Cargo.toml (Rust dependencies), pyproject.toml (Python projects), or custom app configs. Just paste the entire file contents and get structured XML output with all sections preserved.
What about TOML keys with invalid XML characters?
TOML keys with spaces, special characters, or starting with numbers are automatically sanitized. Invalid characters become underscores, and numeric-starting names get underscore prefix. For example, '123-my key' becomes '_123_my_key'.
When should I use CDATA sections?
Use CDATA for multiline TOML strings, text with special characters (&, <, >), or content that looks like markup. CDATA preserves formatting without escaping. For example, TOML strings containing code snippets or HTML benefit from CDATA wrapping.
How do I convert the XML back to TOML?
Use an XML to TOML converter (reverse operation). Note that some XML features (attributes, comments, processing instructions) don't map to TOML. Use type attributes to preserve data types for better round-trip conversion.
Is my configuration data secure?
Absolutely! All conversion happens entirely in your browser using client-side JavaScript. Your TOML config files (Cargo.toml, pyproject.toml, etc.) never leave your computer or get sent to any server. Works completely offline after loading.