JSONChecker – Visual JSON debugger with auto-repair

Show HN: JSONChecker – Visual JSON debugger with auto-repair

JSONChecker – Visual JSON debugger with auto-repair operates in show hn launch.

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Hi HN, I built JSONChecker because I was tired of staring at cryptic JSON syntax errors from APIs and config files. You know the pain – "SyntaxError at line 847" but good luck finding what's actually wrong in a wall of JSON. Why I built this: • Spent too many hours debugging malformed JSON from third-party APIs • Existing tools either crashed on large files or gave unhelpful error messages • Wanted something that could actually fix common issues automatically What it does: • Real-time validation with precise error highlighting • Pattern-based auto-repair (fixes missing quotes, trailing commas, bracket mismatches) • Visual diff showing exactly what changed • Handles large files without browse

Within the show hn launch space, the company focuses on its core offering rather than a broad product line.

Directory data places it at the Show HN launch stage.

Website: jsonchecker.best