Retool

Founded by David Hsu in 2017, Retool provides a simple internal tool-building platform for creating new applications. Using Retool to create new internal tools and programs is designed to be easy through the use of prebuilt building blocks like tables, lists, charts, forms, and other features that are applied by dragging and dropping. In addition, users can build their own tools directly in Retool using JavaScript and an application programming interface (API.) Data source connection takes minimal configuration with Retool's built-in API and database integrations. Retool supports most databases and REST, GraphQL, and SOAP APIs.

Retool serves companies in the financial, retail, e-commerce, marketplaces, and media industries. Amazon, Peloton, Coinbase, Ramp, Live Nation, Brex, DoorDash, Warner Brothers, Remitly, and ShipBob are among Retool's many customers.