To convert YAML to TOML, choose your YAML config files above, adjust the options if needed and press "Convert to TOML". The TOML downloads instantly: free, with no sign-up, and the file never leaves your device.
About the YAML to TOML Converter
Need to turn a YAML file into TOML? This free converter changes YAML config files into TOML in a few seconds, right in your browser. People usually convert because YAML is indentation-sensitive and many tools and APIs expect JSON, while TOML gives you a valid TOML config. TOML files open in VS Code, Cargo, pip, Poetry, Hugo and most languages via libraries.
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 TOML. 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 YAML to TOML Converter
- Click "Choose files" or drag your YAML config files onto the box. You can add several at once.
- No settings are needed; indentation and types are handled automatically.
- Press "Convert to TOML". The conversion runs on your device and shows its progress.
- Download each TOML file, or use "Download all (ZIP)" when you converted several.
- Open the result in VS Code or Cargo to check it; your original YAML is never changed.
Tips & benchmarks
- TOML needs a table at the top level, so a list at the root is wrapped as items = [...].
- 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 TOML to a website or government portal.
Frequently asked questions
How do I convert YAML to TOML?
Click "Choose files", select your YAML config files, adjust the options if you want, and press "Convert to TOML". The TOML downloads immediately; with several files you can download everything as one ZIP.
Is this YAML to TOML 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 YAML and TOML. Comments are not carried over because most formats cannot store them.
Can I convert several YAML files at once?
Yes. Add as many YAML 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 YAML and TOML?
YAML (YAML Ain't Markup Language) is a human-friendly configuration data best suited to Kubernetes, Docker Compose, GitHub Actions, Ansible and app configuration. TOML (Tom's Obvious Minimal Language) is a minimal configuration format best suited to Rust and Python project settings, Hugo sites and application config.
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.
How do I convert YAML to TOML in Python?
Load the file (json.load, yaml.safe_load or xmltodict.parse) and write it with the tomli-w package: tomli_w.dump(data, open("output.toml", "wb")). If you just need the file, this converter does it in the browser without writing any code.
YAML ko TOML kaise kare?
Is page par "Choose files" dabaiye, apni YAML file chuniye aur "Convert to TOML" par click kijiye. TOML file turant download ho jaati hai. Ye bilkul free hai, sign-up nahi chahiye, aur aapki file kisi server par upload nahi hoti.
YAML vs TOML: format comparison
| YAML | TOML | |
|---|---|---|
| Full name | YAML Ain't Markup Language | Tom's Obvious Minimal Language |
| Type | Human-friendly configuration data | Minimal configuration format |
| Created by | Clark Evans, Ingy döt Net and Oren Ben-Kiki, 2001 | Tom Preston-Werner, 2013 (v1.0 in 2021) |
| Compression | None (text) | None (text) |
| File extension | .yaml | .toml |
| MIME type | application/yaml | application/toml |
| Best for | Kubernetes, Docker Compose, GitHub Actions, Ansible and app configuration | Rust and Python project settings, Hugo sites and application config |
| Opens in | VS Code, kubectl, Docker, GitHub and every major programming language | VS Code, Cargo, pip, Poetry, Hugo and most languages via libraries |
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.
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.
Need it the other way round? Use the TOML to YAML Converter.
More YAML converters
Convert other formats to TOML
Related searches
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.