Anything ambiguous: a truncated document, an unbalanced brace, a missing value. Those need a decision only you can make, so it reports the parse error instead of guessing.

Can repair change my values?

No. It changes syntax only. Quoting a bare key or swapping quote characters leaves the parsed result identical; nothing is added, dropped or reordered.

What happens if the repair still does not parse?

Your document is left exactly as it was and you get the error location. The editor is only written to when the result is known to be valid.

Is the output formatted or minified?

Formatted, so you can read it straight away. Run Minify afterwards if you need it compact.

What if my JSON was already valid?

It says so and leaves the document alone — no reformatting, and no pointless entry on the undo stack.

JSON Kitchen

Repair JSON that will not parse

Trailing commas, single quotes and bare keys, fixed and re-parsed.

Paste JSON

or drag & drop a JSON file

Empty document

UTF-8Lines 0Characters 0

What it does

A lot of JSON in the wild is not quite JSON: hand-edited, copied out of a JavaScript file, or saved with a byte order mark. Repair applies a fixed set of conservative rewrites, parses the result to prove it worked, and tells you what it changed.

Example

Almost JSON

{name: 'ada', tags: ['a', 'b',],}

Repaired

{
  "name": "ada",
  "tags": [
    "a",
    "b"
  ]
}

Highlights

Removes trailing and doubled commas in objects and arrays
Converts single-quoted strings and quotes bare keys
Strips byte order marks and normalizes line endings
Formats the repaired document in the same pass
Reports which repairs were applied, so nothing is silent

Frequently asked questions

What can it not fix?: Anything ambiguous: a truncated document, an unbalanced brace, a missing value. Those need a decision only you can make, so it reports the parse error instead of guessing.
Can repair change my values?: No. It changes syntax only. Quoting a bare key or swapping quote characters leaves the parsed result identical; nothing is added, dropped or reordered.
What happens if the repair still does not parse?: Your document is left exactly as it was and you get the error location. The editor is only written to when the result is known to be valid.
Is the output formatted or minified?: Formatted, so you can read it straight away. Run Minify afterwards if you need it compact.
What if my JSON was already valid?: It says so and leaves the document alone — no reformatting, and no pointless entry on the undo stack.

Back to the editor

JSON Kitchen

Repair JSON that will not parse

Trailing commas, single quotes and bare keys, fixed and re-parsed.

Paste JSON

or drag & drop a JSON file

Empty document

UTF-8Lines 0Characters 0

What it does

Example

Almost JSON

{name: 'ada', tags: ['a', 'b',],}

Repaired

{
  "name": "ada",
  "tags": [
    "a",
    "b"
  ]
}

Highlights

Removes trailing and doubled commas in objects and arrays
Converts single-quoted strings and quotes bare keys
Strips byte order marks and normalizes line endings
Formats the repaired document in the same pass
Reports which repairs were applied, so nothing is silent

Frequently asked questions

What can it not fix?: Anything ambiguous: a truncated document, an unbalanced brace, a missing value. Those need a decision only you can make, so it reports the parse error instead of guessing.
Can repair change my values?: No. It changes syntax only. Quoting a bare key or swapping quote characters leaves the parsed result identical; nothing is added, dropped or reordered.
What happens if the repair still does not parse?: Your document is left exactly as it was and you get the error location. The editor is only written to when the result is known to be valid.
Is the output formatted or minified?: Formatted, so you can read it straight away. Run Minify afterwards if you need it compact.
What if my JSON was already valid?: It says so and leaves the document alone — no reformatting, and no pointless entry on the undo stack.

Back to the editor

Repair JSON that will not parse

What it does

Example

Highlights

Frequently asked questions

Related tools

Repair JSON that will not parse

What it does

Example

Highlights

Frequently asked questions

Related tools