Code Block Extractor

Pull every fenced code block out of Markdown or LLM output. Groups by language (Python, JavaScript, SQL, etc.). Useful for processing LLM responses that contain multiple code samples, or for splitting a tutorial doc into runnable snippets.

How to use the Code Block Extractor

Paste Markdown or any text with triple-backtick code blocks. Extractor returns every block, labeled with its language (if specified). Filter by language to get just one type. Useful preprocessor for an agent pipeline that needs to run extracted code, or for documentation tools that pull code samples out of long-form content.

Pulling code out of Markdown and LLM replies

LLM answers and Markdown docs often contain several fenced code blocks — a Python snippet, a shell command, a config file — each opened with triple backticks and an optional language tag. When you want just the code, scrolling and copying each block by hand is tedious, and an automated pipeline needs a reliable way to separate runnable code from the surrounding prose.

This extractor scans the input, pulls every fenced block, and groups them by language so you can grab all the Python or all the SQL at once. It pairs naturally with the JSON extractor from LLM output when a response mixes code and structured data.

Common use cases

• Processing LLM output — isolate the code an assistant produced from its explanation.
• Agent pipelines — extract a snippet so a downstream step can run or save it.
• Tutorial splitting — pull every example out of a long Markdown lesson into separate files.
• Language filtering — keep only the blocks tagged with one language.
• Snippet collection — gather code samples scattered through docs into one place.