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HomeYAML vs TOML
.yaml
.toml

YAML vs TOML

Compare YAML Ain't Markup Language and Tom's Obvious Minimal Language formats — understand the key differences and when to use each

Format Overview

YAML

YAML Ain't Markup Language

YAML (YAML Ain't Markup Language) is a human-friendly data serialization format commonly used for configuration files. It uses indentation for structure rather than brackets or tags, making it highly readable. YAML is the standard configuration format for Docker Compose, Kubernetes, Ansible, GitHub Actions, CI/CD pipelines, and many modern development tools. It supports scalars, sequences, mappings, anchors, aliases, and multi-line strings.

.yamldata

TOML

Tom's Obvious Minimal Language

Tom's Obvious Minimal Language (.toml) is a data file format.

.tomldata

YAML vs TOML: Feature Comparison

FeatureYAMLTOML
Full NameYAML Ain't Markup LanguageTom's Obvious Minimal Language
File Extension.yaml.toml
Categorydatadata
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use YAML vs TOML

Use YAML when you need:

  • •Files in YAML Ain't Markup Language format for maximum compatibility
  • •Industry-standard data format support
  • •Wide software and platform compatibility

Use TOML when you need:

  • •Files in Tom's Obvious Minimal Language format for specific workflows
  • •Optimized data format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

YAML TOMLTOML YAML
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最大ファイルサイズ:2GB

ファイルはブラウザ内でローカルに処理されます。サーバーにアップロードされません。

Learn More About These Formats

YAML Converter TOML Converter

Frequently Asked Questions

What is the difference between YAML and TOML?
YAML (YAML Ain't Markup Language) and TOML (Tom's Obvious Minimal Language) are both data file formats. YAML files use the .yaml extension while TOML uses .toml. They differ in compression, quality, compatibility, and intended use cases.
Can I convert YAML to TOML for free?
Yes! Convert999 lets you convert YAML to TOML completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, YAML or TOML?
It depends on your use case. YAML (YAML Ain't Markup Language) may be better for certain workflows, while TOML (Tom's Obvious Minimal Language) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

YAML Converter

Convert from YAML

TOML Converter

Convert from TOML

File Tools

Compress, resize, merge

Convert to YAML

All sources → YAML

Convert to TOML

All sources → TOML

Format Statistics

Trends & data 2025

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