Robust JSON Parser for AI Outputs & Dirty Data

This n8n sub-workflow is a powerful tool for handling 'dirty' JSON strings commonly produced by AI language models or extracted from web pages. It systematically cleans input by trimming whitespace and removing Markdown fences, then applies targeted fixes: escaping control characters, correcting backslash sequences, removing trailing commas, and repairing unescaped quotes within strings. If direct parsing fails, it intelligently extracts JSON-like blocks from larger text and reprocesses them. T