Is the ini to toml converter free?

Yes, completely free. No sign-up, no daily limit, no watermark on the output.

Are INI sections preserved?

Yes. INI sections become TOML tables with the same names, so the structure stays the same.

Are data types detected?

Yes. Numbers and booleans are automatically detected and written without quotes; strings get TOML's standard double quotes.

Are INI comments preserved?

No. Comments are dropped during conversion since INI and TOML handle them slightly differently.

Is the output valid TOML?

Yes. The output follows the TOML 1.0 spec and loads cleanly in standard parsers like @iarna/toml or tomli.

INI to TOML Converter Online

What is INI to TOML Conversion?

INI to TOML conversion takes a classic INI config file and rewrites it in TOML, a modern config language with proper types and stricter syntax. The two formats look similar at first glance: both use [section] headers and key=value pairs. But TOML adds explicit types (strings get quoted, numbers and booleans don't), supports arrays and dates, and is the format of choice for Rust's Cargo and Python's modern tooling. A ini to toml converter handles the syntax bump so you don't have to add quotes around every string by hand.

Why Convert INI to TOML?

TOML is the format people pick when they want config that's easy to read, hard to break, and supports proper types. It's used by Cargo, Poetry, Hatch, Hugo, Zola, and a long list of Go and Rust projects. INI is what legacy PHP, MySQL, Git, and many older apps produced. Converting ini to toml online is the fastest way to modernize. Use a ini to toml tool when you need to migrate INI settings into Rust or Python project configs, modernize legacy app configs into a strongly-typed format, share config in a format that's friendlier to diff in git, or move toward a config that's harder to mistype.

How Our INI to TOML Converter Works

When you click Convert, the tool parses your INI, keeps each [section] as a TOML table with the same name, and writes the keys inside with proper TOML syntax. Strings get wrapped in double quotes, numbers stay unquoted, and booleans (true/false) are detected automatically. Dotted section names like [server.dev] map directly to TOML's nested-table syntax. Everything runs in your browser. Your INI data never leaves your device.

Features You Get

One-click conversion: hit Convert and the TOML appears in the output panel.
Section preservation: each [section] becomes a TOML table with the same name.
Type detection: numbers and booleans stay unquoted; strings get proper TOML quoting.
Nested sections: dotted names like [server.dev] map cleanly to TOML's nested tables.
Upload support: load a .ini or .cfg file from your device or drag-and-drop it into the input.
One-click copy: grab the TOML output with the Copy button and paste it into your config file.

How to Use the Tool

Paste your INI content into the input editor, or use the Upload File button to load a .ini or .cfg file.
Click the Convert button to generate the TOML output on the right.
Verify the section headers and quoted values look right for your tool.
Click the Copy button to copy the TOML to your clipboard.

Common Use Cases

Config modernization: moving legacy INI settings to a strongly-typed TOML format.
Rust and Python projects: generating Cargo.toml or pyproject.toml entries from older INI configs.
Static site generators: migrating INI data to Hugo or Zola TOML config.
Stricter configs: moving from untyped INI to TOML for fewer config-related bugs.

Example Conversion

Input (INI)

[server]
host=localhost
port=3000
debug=true

Output (TOML)

[server]
host = "localhost"
port = 3000
debug = true

Frequently Asked Questions

Related Converters

TOML to INI INI to JSON INI to YAML