To convert JSON to YAML, choose your JSON data 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 JSON to YAML Converter
This JSON to YAML converter turns data files from JSON into YAML without installing software or uploading anything. It solves a common problem: JSON is hard for non-developers to read and does not open in Excel. Converting to YAML gives you readable YAML, ideal for Kubernetes, Docker Compose, GitHub Actions, Ansible and app configuration.
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 data 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 JSON to YAML Converter
- Click "Choose files" or drag your JSON data 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 JSON 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 JSON to YAML?
Click "Choose files", select your JSON data 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 JSON 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 data 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 JSON and YAML. Comments are not carried over because most formats cannot store them.
Can I convert several JSON files at once?
Yes. Add as many JSON 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 JSON and YAML?
JSON (JavaScript Object Notation) is a structured data (text) best suited to APIs, web and mobile apps, configuration and MongoDB or Firebase data. 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.
How do I convert JSON to YAML in Python?
Use PyYAML: yaml.safe_dump(json.load(open("input.json")), open("output.yaml", "w"), sort_keys=False). If you just need the file, this converter does it in the browser without writing any code.
JSON ko YAML kaise kare?
Is page par "Choose files" dabaiye, apni JSON 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.
JSON vs YAML: format comparison
| JSON | YAML | |
|---|---|---|
| Full name | JavaScript Object Notation | YAML Ain't Markup Language |
| Type | Structured data (text) | Human-friendly configuration data |
| Created by | Douglas Crockford, early 2000s (RFC 8259) | Clark Evans, Ingy döt Net and Oren Ben-Kiki, 2001 |
| Compression | None (text) | None (text) |
| File extension | .json | .yaml |
| MIME type | application/json | application/yaml |
| Best for | APIs, web and mobile apps, configuration and MongoDB or Firebase data | Kubernetes, Docker Compose, GitHub Actions, Ansible and app configuration |
| Opens in | every programming language, VS Code, Postman, browsers and databases | VS Code, kubectl, Docker, GitHub and every major programming language |
What is a JSON file?
JSON is the data format of the modern web: almost every API, app configuration and NoSQL database speaks it. It represents objects, arrays, numbers and text in a compact, human-readable way.
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 JSON 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.