How to Convert JSON to YAML on Windows
JSON is the data format of web APIs and JavaScript apps: records with named fields, which can be nested inside each other.. Paste it or drop the file below to get clean YAML instantly – no Python, no command line, and your data never leaves your Windows PC.
Converted on your device. Your data never leaves your browser.
Step by step: Convert JSON to YAML on Windows
- 1
Open this page in Edge, Chrome or Firefox on your PC.
- 2
Paste your JSON into the box, or drag the file from File Explorer onto the box above, or click the box to browse for it.
- 3
The YAML appears as you type or as soon as the file loads.
- 4
Copy it, or click Download. The file goes to your Downloads folder (File Explorer › Downloads).
How the JSON is converted
- Objects become indented key: value blocks and arrays become – lists, which is the style Docker Compose, Kubernetes and GitHub Actions files use.
- Strings that YAML would misread (like yes, no or 1.0) are quoted for you.
About JSON and YAML
- JSON is the data format of web APIs and JavaScript apps: records with named fields, which can be nested inside each other.
- YAML is a human-friendly config format – used by Docker Compose, Kubernetes and GitHub Actions – that uses indentation instead of brackets and quotes.
Tips for Windows PC
- Nothing to install, so it works on work and school PCs where you can't add software.
JSON vs YAML
| JSON | YAML | |
|---|---|---|
| Compression | Plain text | Plain text |
| Best for | APIs, apps and config files | Config files people edit by hand |
| Support | Every programming language | Most programming languages and DevOps tools |
Frequently asked questions
Do I need to write code to convert JSON to YAML?
No. Paste or drop the file and the converted version appears straight away – no scripts, libraries or terminal.
How big a file can it handle?
Files of several megabytes convert in a moment. There's no fixed limit; the only constraint is your device's memory.
Is my data uploaded to a server?
No. The conversion runs in your browser using your device's own processor, so your data never leaves your device. You can even disconnect from the internet once the page has loaded.
Need more options? Open the full JSON to YAML tool →