I Built an AI-Powered JSON Error Fixer — Here's How It Works

Every developer has seen this error… SyntaxError: Unexpected token } in JSON at position 127 And that’s it. No context. No hint. Just vibes. You end up staring at 200 lines of JSON trying to find one missing comma like it’s a Where’s Waldo puzzle. 😤 The Problem JSON errors are painfully unhelpful: No line numbers (most of the time) No explanation of what actually went wrong Just a position index that means nothing in real life So debugging turns into: “Let me just scroll… scroll… scroll… oh wait… nope… still broken.” 💡 So I built a tool 👉 Paste broken JSON → get it fixed instantly 🔧 https://alljsontools.com/fix-json-error ⚡ What It Does 🧠 Client-side fixes (instant, no API) Handles most common issues right in the browser: Trailing commas {"a": 1,} → {"a": 1} Single quotes {'a': 1} → {"a": 1} Unquoted keys {name: "John"} → {"name": "John"} JS-style comments {"a": 1 // note} → {"a": 1} Invalid values undefined , NaN → null Control characters Raw newlines → escaped \n Mismatched brackets