QuestDB is a high performance, open-source, time-series database

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

A Java package to automatically detect anomalies in large scale time-series data

The Heroic Time Series Database

ELKI Data Mining Toolkit

ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first Multi-Model DBMS. ArcadeDB supports Vector Embeddings.

The Most Advanced Time Series Platform

Accumulo backed time series database

A Time Series Browser

Scalable Time Series Data Analytics

The Chronix Server implementation that is based on Apache Solr.

Time Series Metrics Engine based on Cassandra

Implementation of time series compression method from the Facebook's Gorilla paper

Anomaly detection for streaming time series, featuring automated model selection.

Time series analysis in Java

Code for Java Deep Learning Cookbook

Imhotep is a large-scale analytics platform built by Indeed.

YiShape-Math is a Java math library that provides NumPy-like functionalities including vector & matrix operations, data visualization, statistics, optimization, time series, signal processing, audio analysis, image processing and machine learning models.

Library which contains several time-dependent data and index structures (e.g., IntervalTree, BucketTimeSeries), as well as algorithms.

GrammarViz 2.0 public release: