JSON Convert Tools

Free Online JSON & Data Conversion Tools

Simple tools. Useful data.

Fast, private and easy-to-use tools for converting, formatting, validating and working with JSON, CSV, XML and YAML data.

Free to use · No registration · Local browser processing

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JSON to CSV Converter

Flatten JSON records into a CSV table, with nested values preserved as JSON.

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CSV to JSON Converter

Convert CSV headers and rows into an array of JSON objects.

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JSON Formatter

Make JSON easier to read with consistent indentation.

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JSON Validator

Check JSON syntax and find parsing errors before using your data.

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JSON Minifier

Remove unnecessary whitespace from valid JSON.

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JSON Viewer

Explore JSON objects and arrays in a collapsible tree.

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XML to JSON Converter

Read XML elements, repeated nodes, attributes, and text as JSON.

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JSON to YAML Converter

Convert valid JSON objects and arrays into readable YAML.

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Browse tools by category

JSON ToolsObjects, arrays and APIsCSV ToolsTables, records and spreadsheetsXML ToolsElements, attributes and documentsYAML ToolsConfiguration and readable data

Why use JSON Convert Tools?

Start right away

Free tools, no account required. Paste data or open a file.

Your data stays here

Conversions run in your browser. The tools do not upload your data.

Built for everyday work

Readable editors, useful error messages, and a layout that works on desktop and mobile.

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Frequently asked questions

Are these tools free?

Yes. You can use the included tools without creating an account.

Is my data sent to a server?

Tool conversions run locally in your browser. Contact messages are sent to the website separately.

Can I use files from a phone?

Yes. Choose Upload File or paste text. Practical file size limits depend on your browser and device.