JSON Formatter & Validator
Validate, pretty-print, minify and optionally sort JSON data locally without uploading configuration or API payloads.
Result
{
"device": "edge-01",
"interfaces": [
{
"name": "ge-0/0/0",
"up": true
}
],
"asn": 64512
}{"device":"edge-01","interfaces":[{"name":"ge-0/0/0","up":true}],"asn":64512}About JSON Formatter & Validator
Parse and format JSON in the browser. Invalid syntax is rejected with the parser position; valid data can be copied in readable or compact form without sending an API payload elsewhere.
Formatting and sorting
Pretty output changes only whitespace unless key sorting is enabled. Sorting recursively reorders object keys but preserves array order and primitive values.
Validation limits
Successful parsing proves that the document is valid JSON, not that it follows an application schema. Required fields, types, ranges and security rules must still be checked by the receiving system. Numbers are interpreted with JavaScript number semantics, so values beyond the safe integer range can lose precision. Keep secrets out of tickets and logs even though this formatter processes input locally in the browser.
Common use cases
- Inspect a network API response.
- Minify a configuration payload.
- Sort object keys for a stable comparison.
Edge cases and gotchas
- Remove passwords, tokens, cookies, private keys and customer data before pasting JSON into any shared troubleshooting workflow. Local processing reduces exposure but does not protect against screen capture, clipboard history, browser extensions or an already compromised device.