JSON5 Formatter & Validator
Validate JSON5 input and convert it to formatted or minified JSON without uploading configuration data.
Local processingYour input stays in this browser tab.
Input
Paste JSON5 to validate and normalize
Output
Formatted JSON output parsed from JSON5
Formatted JSON output appears here.
What JSON5 accepts
JSON5 allows comments, trailing commas, single-quoted strings, and unquoted object keys. Output is normalized as standard JSON.
Sample input and expected output
Input {service:'payloadharbor', retries:2,} formats to JSON with quoted keys and two-space indentation.