OneSchema provides a platform for importing and validating CSV files, aimed at developers and businesses that manage large data sets. The platform allows users to validate and transform files of up to 4GB in under a second, making it efficient for handling significant amounts of data. OneSchema stands out from competitors by offering a high level of customization, enabling businesses to adjust the importer to reflect their brand's design elements. The service operates on a subscription model, where clients pay for access to features like a library of data validators, bulk data cleaning tools, and an audit logging API. The main goal of OneSchema is to save clients time and resources by automating and simplifying the data import and validation process.