Convert INI to TOML Online

Upgrade your old INI files to modern TOML. This tool converts INI sections into TOML tables, improving structure and readability for your configuration.

Convert INI to TOML Online

Upgrade your old INI configuration files to modern, structured TOML format.

INI Input

TOML Output

TOML output will appear here

How the INI to TOML Converter Works

This tool upgrades legacy INI configuration files to modern TOML format. It parses INI sections and key-value pairs, then generates equivalent TOML with proper typing and structure. The conversion preserves all configuration data while improving readability.

Conversion Process

Paste your INI configuration into the input area
Click "Convert to TOML" to process
INI sections become TOML tables [section]
Nested sections (section.subsection) are preserved
Values are typed (strings, numbers, booleans)
Comments are preserved in the output
Copy or download the converted TOML

Specific Use Cases

Legacy Application Modernization

A team updates an old application to use modern config formats. INI files convert to TOML for better tooling support.

Python to Rust Migration

A developer migrates from Python (configparser) to Rust (toml crate). INI configs convert directly to native TOML format.

Windows to Cross-Platform

A Windows application using INI files goes cross-platform. TOML provides consistent configuration across all operating systems.

Configuration Standardization

An organization standardizes on TOML across projects. Existing INI files convert to the new standard format.

Version Control Integration

A team moves configs to Git for version control. TOML's cleaner format improves diff readability.

What to Know Before Using This Tool

Understanding INI to TOML conversion:

INI sections [section] become TOML tables [section]
Dot notation in section names creates nested tables
INI comments (; and #) are preserved
Values gain proper TOML typing (quotes for strings)
Arrays in INI (comma-separated) become TOML arrays
TOML supports more data types than INI

Frequently Asked Questions

What's the difference between INI and TOML?

TOML is a superset of INI with better typing, arrays, and nested structures. TOML has stricter syntax but better tooling support and validation.

Are comments preserved?

Yes, INI comments using ; or # are preserved in the TOML output. TOML only uses # for comments, so ; comments are converted.

What happens to quoted values?

INI quoted values become properly typed TOML strings. TOML requires quotes around string values for clarity.

Can nested sections be converted?

Yes, INI sections like [database.connection] convert to TOML nested tables [database.connection].

Why convert from INI to TOML?

TOML has better language support, validation tools, and handles complex data types. It's the modern standard for configuration.

Is the conversion reversible?

Yes, TOML can convert back to INI, but advanced TOML features (arrays of tables, dates) may not map cleanly to INI.

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Convert INI to TOML Online