Convert YAML to JSON
Convert YAML markup to a JSON data structure. Runs entirely in your browser, so your data never leaves your device.
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Output
The result appears here as you type.
How to use Convert YAML to JSON
- 1. Paste your YAML. Paste the YAML document you want converted, such as a config file or a snippet copied from a manifest. Indentation in the source determines the nesting in the result.
- 2. Pick the output indent. Choose 2 spaces, 4 spaces or tabs for the Indent setting to control how the resulting JSON is formatted, independent of whatever indentation the original YAML used.
- 3. Copy the JSON output. Copy the converted JSON and use it in code that expects JSON natively, such as a JavaScript config loader, a REST API body or a JSON schema validator.
When to use Convert YAML to JSON
Convert YAML to JSON is for the reverse of the usual config direction, taking a docker-compose file, a Kubernetes manifest or a CI workflow written in YAML and turning it into JSON your application code can parse with a plain JSON.parse call.
- Loading a Kubernetes manifest into an app. Your tool reads and validates Kubernetes YAML manifests, but the validation library or schema you rely on only accepts JSON input, so converting first is the simplest path.
- Feeding a docker-compose file into a JSON schema validator. You want to run a docker-compose.yml file through a JSON Schema validator to catch config mistakes, and the validator has no native YAML support.
- Debugging a CI workflow's effective config. A GitHub Actions or GitLab CI file is hard to read as deeply nested YAML, and viewing the same values as JSON in a debugger or log makes the structure clearer.
- Porting settings from YAML config to a JS object literal. You are migrating an application away from YAML config files toward a JSON-based settings system and need each existing file translated as a first pass.
Examples
Convert a YAML document
Input
name: Ada languages: - js - ts active: true
Output
{
"name": "Ada",
"languages": [
"js",
"ts"
],
"active": true
}About the Convert YAML to JSON tool
Convert YAML to JSON does its work locally, right in the browser. Convert YAML markup to a JSON data structure. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the JSON Tools collection on EditSafely, a set of 90 small, focused JSON utilities that share the same instant, private workspace.
You can shape the output with the Indent setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Convert YAML to JSON free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.