Conservative mode fixes comments, simple quotes and keys, BOMs, and trailing commas. Comprehensive mode also attempts missing delimiters, wrappers, dialect literals, escaped or truncated input, and multiple root values.
Repair malformed JSON with a non-evaluating parser, then verify and format the result as strict JSON.
Conservative mode fixes comments, simple quotes and keys, BOMs, and trailing commas. Comprehensive mode also attempts missing delimiters, wrappers, dialect literals, escaped or truncated input, and multiple root values.
{
// Common JSON-like mistakes this tool can repair.
project: 'jsonformatters.org',
settings: { enabled: true, },
tags: ['json', 'repair',],
}{
"project": "jsonformatters.org",
"settings": {
"enabled": true
},
"tags": [
"json",
"repair"
]
}No. The transformation runs in your browser. URL import contacts only the address you explicitly enter.
The editor marks the likely location and keeps stale output out of the result pane.
Success means the output is syntactically valid JSON. The final formatter retains duplicate members and numeric lexemes that remain in the repaired serialization; it does not prove inferred values match your intent.
Comprehensive recovery may insert null, quote unsupported tokens, remove placeholders or wrappers, combine root values, reshape malformed arrays, or close truncated strings. No source code is executed.