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Free JSON tools

Format, validate, minify, compare and convert JSON, with clear error messages.

Ready to use 8

JSON Formatter

Pretty-print JSON with your choice of indentation and sorted keys.

Runs in your browser

JSON Validator

Check JSON, see exactly where errors are, and catch duplicate keys.

Runs in your browser

JSON Diff

Compare two JSON documents and see every change by path.

Runs in your browser

JSON Minifier

Strip whitespace from JSON to make it as small as possible.

Runs in your browser

JSON to YAML

Convert JSON to clean YAML for Kubernetes, Compose and CI files.

Runs in your browser

YAML to JSON

Convert YAML, including anchors and multiple documents, to JSON.

Runs in your browser

JSON Escape

Escape text so it can sit inside a JSON string.

Runs in your browser

JSON Unescape

Turn an escaped JSON string back into plain text.

Runs in your browser

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