JSON Repair (Auto-fix broken JSON — trailing commas, comments, missing brackets & more)

Broken JSON

Try a broken sample

Fixed!

Repaired JSON

{
  "name": "Alice",
  "age": 30,
  "tags": ["dev", "admin"]
}

1 fix applied

Trailing commas removed

Trailing commas:{ a: 1, }Single quotes:{'key': 'val'}Unquoted keys:{key: 1}JS comments:// or /* */Missing commas:{"a":1 "b":2}Undefined/NaN:undefined, NaN, Infinity