Attempt to fix common JSON errors — trailing commas, single quotes, comments, and unquoted keys — and validate the result.
JSON Repair is a free online tool that attempts to fix common JSON syntax errors from logs, webhooks, exports, configs, and API responses. It can remove trailing commas, strip BOM, delete comments, replace simple single quotes, and add quotes around simple keys. After fixing, the service validates the result through JSON.parse. The tool runs in your browser and does not send data to the server.
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JSON Repair helps fix common syntax errors in JSON from logs, webhooks, corrupt exports, configs, and API responses. The tool can remove trailing commas, strip BOM characters, delete comments, replace simple single quotes, and add quotes around simple keys. After repairing, the service validates the result via JSON.parse and shows whether a valid JSON was produced.
A list of applied fixes is displayed so you can review what changed. For complex cases the result must be checked manually to avoid misinterpreting the original payload.
All processing is done locally in the browser. Your data is not sent to the server.