JSON Lint: What It Checks and How to Use It
JSON Lint checks your JSON for syntax errors, trailing commas, and duplicate keys. Learn what it validates and how to integrate it into your workflow.
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Tags: json, developer-tools, validation
JSON Lint: What It Checks and How to Use It JSON linting goes further than . A basic parse check tells you whether a document is syntactically valid. A linter adds a layer of structural and semantic checks that catch problems the parser ignores — duplicate keys, suspicious nesting depth, encoding artifacts, and format violations that would silently produce wrong behavior at runtime. This guide covers what linting adds over basic parsing, the tools available for CLI and editor workflows, and how to integrate lint checks into a git pre-commit hook. --- What a JSON Linter Checks Beyond Parse Errors Duplicate Keys The JSON specification technically permits duplicate keys in objects — RFC 8259 says "The names within an object SHOULD be unique" (emphasis on SHOULD, not MUST). That means this is…
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