A tool for extracting matching content using regular expressions.
Overview
Regex is a built-in StackAI utility node for pattern matching, extraction, validation, and replacement inside workflows. It's the fastest way to clean LLM outputs, parse structured data from text, and enforce formats before passing data downstream.
Top Use Cases
LLM output cleanup
Use Regex nodes on StackAI to extract clean JSON or fields from LLM responses.
Pattern-based extraction
Pull emails, dates, IDs, and other structured tokens from unstructured text
Data validation guards
Validate fields with regex before persisting AI outputs to production systems.
