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Tools hub
All-in-One JSON Tools
Format, validate, minify, diff, and convert JSON in seconds, including JSON to XML, YAML, and CSV.
Workflows
Tools
Tools
14Choose a tool below, or narrow by task and the full A–Z index.
- JSON DiffCompare two JSON objects
- JSON Escape / UnescapeEscape or unescape JSON strings
- JSON FormatterPretty print and format JSON
- JSON Key RemoverRemove keys from JSON objects
- JSON MergeMerge two or more JSON objects
- JSON MinifierMinify and compress JSON
- JSON Sort KeysSort object keys alphabetically
- JSON to CSVFlatten JSON to CSV
- JSON to XMLConvert JSON to XML
- JSON to YAMLConvert JSON to YAML
- JSON ValidatorValidate JSON and show errors
- JSON ViewerTree view and explore JSON
- XML to JSONConvert XML to JSON
- YAML to JSONConvert YAML to JSON
About JSON Tools
We provide free online JSON tools for formatting, validating, minifying, converting, and editing JSON. Pretty-print and beautify JSON with custom indent (2 or 4 spaces or tab) and optional sort keys; validate syntax and see error position; minify for production; convert JSON to XML or YAML and back; compare two JSON objects with a diff; view JSON as a collapsible tree; escape or unescape strings; sort object keys alphabetically; and merge multiple JSON objects. For tabular data, use our CSV Tools to convert between JSON and CSV.
Use sort-keys plus minify before shipping configs—deterministic ordering makes Git diffs readable when paired with CI validators.
Browse the tools above to get started. For more help, visit our Contact or FAQ page.
Frequently asked questions
- Are JSON tools free?
- Yes, all JSON tools are free. Format, validate, minify, convert to XML or YAML, compare, view as tree, escape, sort keys, and merge.
- Validator passes but my API still rejects the payload—why?
- Strict APIs often forbid trailing commas, comments, single quotes, or a UTF-8 BOM. Run the formatter, compare against the API schema, and hex-check the first bytes if parsers disagree.
- What can I do with JSON tools?
- Format and pretty-print JSON with indent and sort keys, validate syntax and see error position, minify for production, convert JSON to XML or YAML and back, compare two JSON objects (diff), view as a collapsible tree, escape or unescape strings, sort object keys alphabetically, and merge multiple JSON objects. The hub also links to JSON to CSV (the CSV tools hub has CSV to JSON).
- Can I convert JSON to CSV?
- Yes. The JSON tools hub links to JSON to CSV to flatten JSON to CSV. For CSV to JSON, use the CSV tools hub.
- Is there a size limit for JSON?
- Very large JSON (for example several MB) may take longer. For best results, we recommend JSON under 5MB for most tools.
- Do JSON tools work offline?
- After the page loads, every tool responds instantly with no round-trips. You can use them without an internet connection for formatting, validation, minify, and conversions.