InfluxDB - Official website - Source code - Document - Download address - Score()

InfluxDB is an open-source distributed time-series database, designed to handle large amounts of time-stamped data. It comes with powerful query language and Data visualization tools that help users to retrieve, analyze, and visualize Data from multiple sources.

TimescaleDB - Official website - Source code - Document - Download address - Score()

TimescaleDB is an open-source time-series database built on top of PostgreSQL. It is designed specifically for handling large scale time-series data, supporting flexible Data modeling and powerful query language, and providing high availability, horizontal scalability and Data protection features.

TDengine - Official website - Source code - Document - Download address - Score()

TDengine is an open-source, high-performance, and highly reliable time-series database designed for quickly processing large amounts of real-time data. It supports a variety of Data formats and protocols, allowing it to easily integrate with various sensors, devices, and monitoring systems, while also providing easy-to-use SQL queries and other features.