JSON to YAML Converter

Data Converters

Convert JSON to clean, readable YAML instantly. Choose 2 or 4 space indentation, validate JSON in real time, then copy or download — nothing ever leaves your browser.

100% Client-Side — Your data never leaves your browser.
Indentation
Valid YAML is regenerated on every keystroke — parsing happens in this tab.
JSON Input
YAML Output

Paste JSON (or click "Load Sample") and clean YAML is generated instantly.

YAML to JSON Converter

Convert YAML to formatted or minified JSON in one click. Real-time validation, pretty 2-space output or compact single-line JSON, copy and download — 100% client-side.

Data Converters

JSON to CSV Converter

Convert JSON arrays or objects to CSV instantly. Nested objects are flattened into dot notation, arrays kept as clean JSON cells, with live preview and one-click .csv download.

Data Converters

JSON to Excel Converter

Turn JSON arrays into real .xlsx spreadsheets in seconds. Auto-sized columns, a live spreadsheet preview, plus one-click Excel and PDF table export — 100% local and free.

Data Converters

JSON to C# Class Generator

Generate strongly-typed C# classes from JSON instantly. Nested objects, List<T>, DateTime, nullable types, JsonPropertyName attributes and PascalCase options — copy ready-to-use code.

Code Generators

How to Use

Three steps from raw data to finished output — no account required.

  1. 1

    Paste your JSON into the left pane, or click Load Sample / upload a .json file.

  2. 2

    Choose 2 or 4 space indentation — valid, clean YAML is regenerated instantly as you type.

  3. 3

    Copy the YAML to your clipboard or download it as a ready-to-commit .yaml file.

Frequently Asked Questions

Everything you need to know about the json to yaml converter.

Yes. The JSON to YAML converter is 100% free with no sign-up, usage limits or watermarks. It runs entirely in your browser, so you can convert unlimited JSON documents to YAML for as long as you like.

No. Conversion happens locally with JavaScript in your browser tab. Your JSON and YAML never leave your device, which makes this tool safe for API keys, configuration files and confidential application data.

Indentation is stylistic: YAML requires consistent indentation, but the nesting depth is your choice. Kubernetes and Docker projects commonly use 2 spaces, while many Python-oriented configs use 4. Pick the option that matches your project style guide.

Yes. Every keystroke is parsed in real time, and any syntax error — including the exact line and column — is shown under the input pane. Output is only produced from valid JSON, so you always convert clean, standards-compliant YAML.