TOML Formatter

Format and beautify your TOML configuration files

Input TOML

Formatted TOML

What is TOML Formatter?

Need to format and beautify your TOML (Tom's Obvious, Minimal Language) configuration files? TOML Formatter takes your TOML and formats it with consistent spacing, indentation, and structure. Perfect for cleaning up messy TOML files or ensuring consistent formatting across your configuration files.

According to the TOML v1.0.0 specification, TOML is a configuration file format that's easy to read and write. It's used by many modern tools like Cargo (Rust), Poetry (Python), and others. Proper formatting makes TOML files more readable and maintainable.

Everything happens in your browser – your TOML never leaves your computer. Format, download, and use your formatted TOML right away.

What Makes This Tool Different

Consistent Formatting

Formats TOML with consistent spacing and indentation. Makes your TOML files cleaner and easier to read.

Preserves Content

All your content stays intact. We only format the structure – no data loss, no content changes.

Real-Time Preview

See formatted TOML instantly as you type or paste. No waiting, no delays – immediate results.

File Upload Support

Upload TOML files directly. No need to copy-paste – just select your .toml file.

Download Formatted

One click to download your formatted TOML file. Drop it into your project and use it immediately.

Standards Compliant

Follows TOML v1.0.0 specification. Formatted TOML is valid and works with any TOML parser.

How It Works

1

Paste or Upload TOML

Paste your TOML into the left editor, or click "Upload" to load a file. You can also click "Sample" to see an example. The TOML should follow standard TOML syntax.

2

View Formatted Output

Your TOML is automatically formatted on the right. The formatted output appears instantly with consistent spacing and structure.

3

Copy or Download

Click "Copy" to copy the formatted TOML to your clipboard, or "Download" to save it as a TOML file. The formatted TOML is ready to use in your project.

When You'd Actually Use This

Clean Up Files

Format messy TOML files with inconsistent spacing. Make them clean and readable. Perfect for cleaning up legacy configuration files.

Team Consistency

Format TOML files to match your team's style guide. Consistent formatting makes code reviews easier and reduces merge conflicts.

Version Control

Format TOML before committing to version control. Consistent formatting makes diffs cleaner and easier to review.

Configuration Files

Format TOML configuration files for better readability. Clean, consistent formatting makes configuration easier to maintain.

Common Questions

Is my TOML data stored?

Nope. Everything happens right in your browser. Your TOML never leaves your computer – we don't even see it.

What does formatting change?

We format spacing, indentation, and structure to be consistent. All your content stays the same – we only improve the formatting.

Does it preserve my content?

Absolutely. We only format the structure – all your actual content values stay exactly the same. We're just improving formatting, not changing your content.

What TOML features are supported?

We support standard TOML syntax including tables, arrays, strings, numbers, booleans, dates, and more. Follows TOML v1.0.0 specification.

Does it work with large TOML files?

Yep. Since everything happens in your browser, it depends on your device. Small to medium TOML files format instantly. Really huge files might take a few seconds.

Is the formatted TOML valid?

Yes! The formatted TOML follows TOML v1.0.0 specification and is valid TOML. It works with any TOML parser.

Other TOML Tools You Might Need

Formatting is just one TOML task. Here are other tools that work well together:

TOML ValidatorTOML to JSONTOML to YAMLTOML to XMLTOML to CSVJSON to TOML

Need to learn more about TOML? Check out TOML.io or the TOML v1.0.0 specification.