ENFR

YAML vs TOML

Choose YAML for configuration files. Choose TOML for project configuration. Both compress the same way; the difference is compatibility and ecosystem.

YAMLTOML
CompressionLosslessLossless
Metadata--
Open / royalty-free✓✓
Defined by--
Since--
Best forconfiguration filesproject configuration

YAML

Human-friendly configuration. Indentation instead of braces.

TOML

Minimal configuration format. Rust, Python and Cloudflare use it.

Questions

YAML or TOML: which is smaller?

It depends on the content; see our measured benchmarks on the conversion pages.

Can I convert YAML to TOML?

Yes, in your browser, nothing uploaded.

And TOML to YAML?

Yes, as well.