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TOML to YAML converter, without the upload.

Turn TOML config files into YAML. It is converted in your browser, so the file never leaves your device.

Drop TOML files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert TOML to YAML

  1. Add your TOML config files

    Drop TOML files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. YAML is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the YAML, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The TOML to YAML converter is part of this page and runs inside your browser. Your config files are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

TOML to YAML: what to expect

TOML is understood by fewer tools than JSON or YAML. YAML is easier for people to read and edit than JSON and allows comments. TOML is at home in simple configuration files; YAML is the usual choice for configuration files written by people.

Keys, nesting and values carry over. Comments in the TOML file are not carried over, because only the data is read.

TOML vs YAML

TOML

TOML data

TOML is a small configuration format with explicit sections and typed values. Rust's Cargo and Python's pyproject.toml use it.

Opens in Any text editor

TOML converter
YAML

YAML data

YAML expresses the same structures as JSON using indentation instead of brackets, and allows comments. It is the usual choice for configuration in tools like Docker Compose, Kubernetes and GitHub Actions.

Opens in Any text editor

YAML converter
TOML compared with YAML
TOMLTOML dataYAMLYAML data
Stands forTom's Obvious Minimal LanguageYAML Ain't Markup Language
TypeStructured data (text)Structured data (text)
CompressionNoneNone
Introduced2013, by Tom Preston-Werner2001, by Clark Evans, Ingy döt Net and Oren Ben-Kiki
Opens inAny text editorAny text editor
Best forSimple configuration filesConfiguration files written by people
File extension.toml.yaml, .yml

Questions

Are my config files uploaded anywhere?

No. The TOML to YAML conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting TOML to YAML?

The values are kept. Anything YAML has no way to express, such as formatting, formulas or nesting, is simplified or left out.

Can I convert several TOML files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert TOML to YAML on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the TOML file, press Convert and save the YAML. There is nothing to install.

Is there a file size limit?

Yes. Data files up to 300 MB are accepted; a larger file is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.