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Developer builds free browser-based JSON tool that auto-repairs syntax and protects data privacy

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A developer built MyJSONPal, a fully client-side JSON editor, after growing frustrated with standard online formatters crashing on common syntax errors like trailing commas or Python-style booleans. The tool runs entirely in the browser with no server calls, ensuring sensitive data such as API tokens and production payloads never leave the user's machine. Beyond auto-repair, it can generate TypeScript interfaces, Zod schemas, and convert JSON to CSV, YAML, or XML. Additional features include recursive key sorting, Base64 decoding, a collapsible tree view, and live search, all powered by a Web Worker architecture to keep the interface responsive. MyJSONPal is free to use and requires no account registration.

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