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JSON Comment Stripper
Convert JSONC files (with comments) into strict JSON ready for any parser. The stripper preserves whitespace and key order.
Instant
Runs entirely in your browser — no upload, no wait.
100% private
Your JSON never leaves the tab. Nothing is logged.
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Free, unlimited, no account required.
JSON vs JSONC
Strict JSON has no comments. JSONC (used by VS Code, tsconfig.json, and many config files) allows // line comments and /* */ block comments. Strict consumers — REST APIs, schema validators, message queues — reject JSONC outright.
Why a regex is not enough
A naive regex strips comment characters that legitimately appear inside string values. The stripper tokenizes first so a string like "https://example.com" is preserved exactly and only real comments are removed.
CLI alternative
For batch processing in CI, the strip-json-comments npm package or jq with the right filter does the same job at speed.
npx strip-json-comments-cli tsconfig.json > tsconfig.strict.jsonUse cases
Sending tsconfig.json to a tool that does not accept comments, normalizing VS Code settings for sharing, preparing JSONC files for schema validation, building deterministic hashes of config files.
Privacy
Pure client-side. No upload.