UpTrain is a full-stack LLMOps platform designed for managing large language model (LLM) applications. It provides enterprise-grade tooling to facilitate evaluations, experiments, monitoring, and testing of LLM applications. Key features of the platform include diverse evaluations, systematic experimentation, automated regression testing, root cause analysis, and enriched datasets creation for testing. The platform allows users to easily define predefined metrics within the extendable framework and get quantitative scores, thereby eliminating guesswork and reducing manual review hours. Through its regression testing feature, developers can enjoy automated testing for all changes made in their LLM application and can easily rollback any changes if needed. The platform also provides insights on patterns in error cases allowing users to make quicker improvements. Furthermore, UpTrain supports the creation of diverse test sets for different case uses and allows existing datasets to be enriched by capturing edge cases encountered in production. Built with compliance to data governance needs, it can be self-hosted on different cloud environments. Uptrain is backed by YCombinator, and its core evaluation framework is open-source. This platform is designed to cater to both developers and managers providing them with essential tools for building, evaluating, and improving LLM applications.