@iconicompany/sanitizejson

A utility to sanitize and repair malformed JSON strings, especially those generated by AI models.

Installation

bun add @iconicompany/sanitizejson

Usage

import { cleanJsonString } from "@iconicompany/sanitizejson";

const rawAiResponse = "Here is the JSON:\n```json\n{ key: \"value\", }\n```";
const cleanJson = cleanJsonString(rawAiResponse);
const data = JSON.parse(cleanJson);
console.log(data); // { key: "value" }

Features

• Markdown Extraction: Automatically extracts JSON from json ... or ... blocks.
• Structural Repair: Uses @qraftr/json-repair to fix unquoted keys, trailing commas, and missing brackets.
• Semantic Sanitization:
  • Merges literal newlines inside strings.
  • Fixes invalid backslashes (e.g., in Windows paths).
  • Replaces curly quotes with standard ones.
  • Removes control characters and Unicode replacement characters.

License

MIT