# Output Parsers

***

Output Parser nodes are responsible for taking the output of a model and transforming it to a more suitable format for downstream tasks. Useful when you are using LLMs to generate structured data, or to normalize output from chat models and LLMs.

### Output Parser Nodes:

* [CSV Output Parser](/integrations/langchain/output-parsers/csv-output-parser.md)
* [Custom List Output Parser](/integrations/langchain/output-parsers/custom-list-output-parser.md)
* [Structured Output Parser](/integrations/langchain/output-parsers/structured-output-parser.md)
* [Advanced Structured Output Parser](/integrations/langchain/output-parsers/advanced-structured-output-parser.md)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.flowiseai.com/integrations/langchain/output-parsers.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.