YAML to TOML Converter
Convert YAML to TOML format instantly
YAML Input
TOML Output
What is YAML to TOML Converter?
Need to convert your YAML (YAML Ain't Markup Language) configuration files to TOML (Tom's Obvious, Minimal Language)? This tool converts YAML to TOML instantly. Perfect for converting YAML config files to TOML format for Rust projects (Cargo.toml), Python projects (pyproject.toml), or any TOML-based system.
According to YAML 1.2 specification, YAML is widely used for configuration files, Docker Compose, Kubernetes manifests, and CI/CD pipelines. TOML is often used in config files (like Cargo.toml for Rust, pyproject.toml for Python). Our converter handles the conversion perfectly, preserving all your data structure.
Everything happens in your browser – your YAML never leaves your computer. Convert, download, and use your TOML file right away.
What Makes This Tool Different
Automatic Conversion
Paste YAML and get TOML instantly. We handle all the syntax differences – objects become TOML tables, arrays stay as arrays, everything gets converted correctly.
Structure Preservation
Your data structure stays intact. YAML objects, arrays, and all values are preserved exactly as they were in YAML.
Validation Built-In
We validate your YAML first, so you know the conversion will work. Invalid YAML gets caught before conversion starts.
File Upload Support
Got a big file? Just upload it. Works great for converting those massive YAML configs without copy-pasting.
Download TOML
One click to download your TOML file. Drop it into your project, use it in Cargo.toml, pyproject.toml, or any TOML-based config.
Syntax Highlighting
Beautiful syntax highlighting for both YAML input and TOML output. Visual feedback helps you verify the conversion looks right.
How It Works
Paste or Upload YAML
Paste your YAML into the left editor, or click "Upload" to load a file. You can also click "Sample" to see an example. The YAML should follow standard YAML syntax.
View TOML Output
Your YAML is automatically converted to TOML on the right. The TOML output appears instantly and is ready to use.
Copy or Download
Click "Copy" to copy the TOML to your clipboard, or "Download" to save it as a TOML file. The converted TOML is ready to use in your project.
When You'd Actually Use This
Rust Projects
Convert YAML configs to TOML for Cargo.toml files. TOML is the standard format for Rust project configuration, and this tool makes it easy to convert YAML data into TOML format.
Python Projects
Convert YAML to TOML for pyproject.toml files. Many Python tools now use TOML for configuration, and this converter helps you migrate from YAML.
Config File Migration
Migrating from YAML configs to TOML? This tool makes it easy. Convert your existing YAML configuration files to TOML format quickly.
Tool Compatibility
Some tools require TOML format. Convert your YAML data to TOML when working with tools like Cargo, Poetry, or other TOML-based systems.
Common Questions
Is my YAML data stored?
Nope. Everything happens right in your browser. Your YAML never leaves your computer – we don't even see it.
What YAML formats work?
The converter works with any valid YAML structure – objects, arrays, nested objects, and mixed types. It analyzes the structure and converts it to equivalent TOML.
How are nested objects handled?
Nested objects become TOML tables (sections). Arrays stay as arrays, and all data types (strings, numbers, booleans, null) are preserved correctly.
Can I convert TOML back to YAML?
Yep. Use our TOML to YAML converter to convert TOML files back to YAML format.
What if my YAML has special characters?
Special characters are properly handled in TOML. Strings with quotes or other TOML syntax characters are escaped correctly.
Does it work with large YAML files?
Yep. Since everything happens in your browser, it depends on your device. Small to medium YAML files convert instantly. Really huge files might take a few seconds.
Other YAML Tools You Might Need
Conversion is just one YAML task. Here are other tools that work well together:
Need to learn more about YAML? Check out YAML.org or the YAML 1.2 specification. For TOML, check out TOML.io.