To convert TOML to YAML, choose your TOML config files above, adjust the options if needed and press "Convert to YAML". The YAML downloads instantly: free, with no sign-up, and the file never leaves your device.
About the TOML to YAML Converter
Need to turn a TOML file into YAML? This free converter changes TOML config files into YAML in a few seconds, right in your browser. People usually convert because fewer tools, libraries and APIs understand TOML, while YAML gives you readable YAML. YAML files open in VS Code, kubectl, Docker, GitHub and every major programming language.
The file is parsed with well-tested open-source parsers (the browser's JSON and XML parsers, js-yaml and smol-toml) and written back out as valid YAML. Because everything happens on your own device, your config files are never uploaded, stored or seen by anyone else, which makes it safe for customer lists, salary sheets, GST data and API exports.
What to expect: objects, lists, numbers, booleans and text keep their structure and types; invalid input is reported with the line of the problem so you can fix it.
How to use the TOML to YAML Converter
- Click "Choose files" or drag your TOML config files onto the box. You can add several at once.
- No settings are needed; indentation and types are handled automatically.
- Press "Convert to YAML". The conversion runs on your device and shows its progress.
- Download each YAML file, or use "Download all (ZIP)" when you converted several.
- Open the result in VS Code or kubectl to check it; your original TOML is never changed.
Tips & benchmarks
- The YAML uses two-space indentation and quotes values only when needed, so it stays readable.
- Validate the output in your target tool (for example kubectl, Cargo or your API client) before deploying it.
- Keep the file name simple (letters, numbers and hyphens) if you plan to upload the YAML to a website or government portal.
Frequently asked questions
How do I convert TOML to YAML?
Click "Choose files", select your TOML config files, adjust the options if you want, and press "Convert to YAML". The YAML downloads immediately; with several files you can download everything as one ZIP.
Is this TOML to YAML converter free and safe?
Yes. It is completely free, with no sign-up, no daily limit and no watermark. The conversion runs inside your browser, so your config files never leave your phone or computer and nothing is stored on News Appite's servers.
What happens to nested data?
Nothing is lost: objects, lists and values map one-to-one between TOML and YAML. Comments are not carried over because most formats cannot store them.
Can I convert several TOML files at once?
Yes. Add as many TOML files as you like; they are converted one after another and you can download them individually or together as a ZIP.
Does it work on iPhone, Android and Mac?
Yes. The converter works in any modern browser, including Chrome, Safari, Edge and Firefox, on Android, iPhone, iPad, Windows, macOS and Linux. No app is needed.
What is the difference between TOML and YAML?
TOML (Tom's Obvious Minimal Language) is a minimal configuration format best suited to Rust and Python project settings, Hugo sites and application config. YAML (YAML Ain't Markup Language) is a human-friendly configuration data best suited to Kubernetes, Docker Compose, GitHub Actions, Ansible and app configuration.
Is there a file size limit?
There is no upload limit, because nothing is uploaded. The practical limit is your device's memory: files of a few hundred megabytes work on most computers, and phones handle smaller files comfortably.
TOML ko YAML kaise kare?
Is page par "Choose files" dabaiye, apni TOML file chuniye aur "Convert to YAML" par click kijiye. YAML file turant download ho jaati hai. Ye bilkul free hai, sign-up nahi chahiye, aur aapki file kisi server par upload nahi hoti.
TOML vs YAML: format comparison
| TOML | YAML | |
|---|---|---|
| Full name | Tom's Obvious Minimal Language | YAML Ain't Markup Language |
| Type | Minimal configuration format | Human-friendly configuration data |
| Created by | Tom Preston-Werner, 2013 (v1.0 in 2021) | Clark Evans, Ingy döt Net and Oren Ben-Kiki, 2001 |
| Compression | None (text) | None (text) |
| File extension | .toml | .yaml |
| MIME type | application/toml | application/yaml |
| Best for | Rust and Python project settings, Hugo sites and application config | Kubernetes, Docker Compose, GitHub Actions, Ansible and app configuration |
| Opens in | VS Code, Cargo, pip, Poetry, Hugo and most languages via libraries | VS Code, kubectl, Docker, GitHub and every major programming language |
What is a TOML file?
TOML is a minimal configuration format with clear key = value pairs and [sections]. It is used by Rust's Cargo.toml, Python's pyproject.toml, Hugo and many other developer tools.
What is a YAML file?
YAML is a configuration language that uses indentation instead of brackets, making it easy for people to read. Kubernetes, Docker Compose, GitHub Actions, Ansible and many CI pipelines are configured in YAML.
Need it the other way round? Use the YAML to TOML Converter.
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All tools on News Appite are free to use for personal and commercial work. Calculations and file conversions are performed in your browser; the redirect and cache checkers make a single request to the URL you enter and store nothing. Found a bug or want a new tool? Tell us.