Free JSON Tools
JSON is the language of modern APIs and config files — and it’s easy to break with a stray comma or an unquoted key. These free JSON tools help you format, validate, convert and inspect JSON right in your browser, with nothing uploaded to a server. Whether you’re debugging an API response or cleaning up a config file, everything runs locally and instantly.
JSON Formatter
Beautify, validate and minify JSON instantly.
JSON to CSV
Convert JSON to CSV instantly.
CSV to JSON
Convert CSV to JSON instantly.
JSON to XML
Convert JSON to XML instantly.
XML to JSON
Convert XML to JSON instantly.
JSON to YAML
Convert JSON to YAML instantly.
YAML to JSON
Convert YAML to JSON instantly.
JSON Validator
Validate JSON and catch errors instantly.
JSON Minifier
Minify JSON to the smallest size.
JSON Viewer
Pretty, readable view of any JSON.
JSON Compare
Find added, removed and changed keys between two JSON objects.
JSON Escape
Escape raw text into a JSON-safe string.
JSON Unescape
Decode a JSON string back to raw text.
FAHAQ keeps every tool free with no paywalls. Donations help cover the servers and keep it fast and growing — even a couple of dollars makes a difference.
JSON tools — questions
Are these JSON tools free?
Yes — every JSON tool on FAHAQ is completely free, with no usage limits and no signup.
Is my JSON data safe?
Yes. All JSON processing happens in your browser, so your data never leaves your device — safe even for sensitive payloads.