Best Open Source Big Data Projects

ClickHouse

Fast open-source OLAP database

TiDB

An open-source, cloud-native, distributed SQL database.

TDengine

An open-source, high-performance time-series database.

TimescaleDB

The open-source time-series database optimized for fast ingest and complex queries.

ThingsBoard

Open-source IoT platform for device management, data collection, and processing.

QuestDB

A time-series database built for very fast ingestion and SQL queries over market, sensor and metrics data.