> For the complete documentation index, see [llms.txt](https://docs.flowiseai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flowiseai.com/integrations/langchain/output-parsers.md).

# Output Parsers

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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)