JSON Fixer
Structured DataRepair common JSON issues such as trailing commas, comments, unquoted keys, and single-quoted strings.
How to use JSON Fixer
Open the sections only when you need instructions or a quick explanation of the result.
- 1
Load Data
Paste almost-JSON from logs, configuration, or copied JavaScript and turn it into strict, readable JSON.
- 2
Convert DEVELOPER UTILITY
Repair common JSON issues such as trailing commas, comments, unquoted keys, and single-quoted strings.
- 3
Review: Converted, Raw, Errors
The fixer parses JSON5-compatible syntax, then serializes the result as strict JSON. It does not guess through structurally ambiguous or incomplete data.
- 4
Copy, download, or continue
This utility runs locally in your browser. Input is not uploaded unless you explicitly use a share feature.
Helpful context
Setup notes, privacy details, and examples when needed.
The fixer parses JSON5-compatible syntax, then serializes the result as strict JSON. It does not guess through structurally ambiguous or incomplete data.
Common questions about JSON Fixer
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