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JSON to YAML Converter

Convert JSON to clean, readable YAML for config files. Free, instant, runs in your browser.

Your files never leave your device

How to convert JSON to YAML

  1. 1

    Choose your JSON files

    Click the upload area or drag files onto it. Nothing is uploaded — files are opened locally.

  2. 2

    Start the conversion

    Press the convert button. Your browser converts the files in seconds.

  3. 3

    Download the result

    Save each file individually or everything at once as a ZIP.

Convert JSON into YAML for Kubernetes manifests, Docker Compose, CI pipelines and other configuration files that are easier to read and review as YAML.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight structured data format used by virtually every web API and modern application.

What is YAML?

YAML is a human-friendly data format popular for configuration — Kubernetes manifests, Docker Compose, GitHub Actions and more.

Safe for confidential files

Unlike upload-based converters, ZapMorph processes files inside your browser tab. Your documents are never transmitted, stored or logged — close the tab and they’re gone.

Frequently asked questions

Is the json to yaml converter free?

Yes. Convert 1 file a day without an account, or 5 files a day with a free account. Pro removes all daily limits.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser, so your files never leave your device. We only count how many files you convert — never their names or contents.

What is the maximum file size?

Up to 25 MB per file without an account, 50 MB with a free account, and 1 GB on Pro. Very large files also depend on your device’s memory.

Can I convert multiple JSON files at once?

Yes. Select several JSON files at once — up to 5 on the free plan or 50 on Pro — and download all results in a single ZIP.

Does it work on Mac, Windows, iPhone and Android?

Yes. It works in any modern browser — Chrome, Edge, Firefox and Safari — on desktop and mobile, with nothing to install.

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