overview
What is Retool?
Retool is a developer-first platform tool developed by Retool (company) that enables developers to build internal tools and custom business applications. It features AI-native building blocks and connects to a wide array of data sources and LLMs. The platform functions as an integrated development environment (IDE), providing a low-code approach to accelerate application development. It allows users to connect to various data sources such as SQL databases, REST APIs, and SaaS platforms (e.g., Google Sheets, Stripe, Salesforce, Amazon S3, Firebase, Slack, GitHub, Jira), and assemble user interfaces using a drag-and-drop interface. Custom business logic can be implemented using JavaScript and SQL. Recent developments include significant focus on AI capabilities, such as AI AppGen for generating applications from natural language prompts, support for major Large Language Model (LLM) providers including OpenAI, Anthropic, and Google (Gemini 3 Pro Preview), and pre-built AI actions and agents for complex tasks. Retool also offers a new React-based app builder and enhanced developer experience features like browser notifications and custom Content Security Policy (CSP). In December 2025, Retool signed a strategic collaboration agreement with AWS to drive enterprise AppGen innovation, and in February 2026, released its "2026 Build vs. Buy Report" indicating 35% of enterprises replaced SaaS with custom software.