JSON Comments: Why They're Not Allowed and What to Use Instead
JSON doesn't support comments — here's why, and what to use instead: JSONC, JSON5, stripped comments, and documentation-as-schema alternatives.
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Tags: json, developer-tools, beginner
JSON Comments: Why They're Not Allowed and What to Use Instead If you have ever tried to add a comment to a JSON file and gotten a parse error, you have hit one of the most frequently complained-about limitations of the format. It surprises many developers because comments are such a basic feature of nearly every config format and programming language. The absence is intentional. And the reasoning is more interesting than you might expect. What to Use Instead There are several practical alternatives, each suited to different situations. --- Option 1: A Field Convention The most common workaround is to use a regular JSON field as a comment. The key or has become a widely recognized convention: This is valid JSON and will parse without errors. The field is simply ignored by any application…
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