Open Source Identity and Access Management For Modern Applications and Services

Conductor is an event driven agentic orchestration platform providing durable and highly resilient execution engine for applications and AI Agents

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

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

The official home of the Presto distributed SQL query engine for big data

Apache Pulsar - distributed pub-sub messaging system

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

The Context Platform for your Data and AI Stack

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process …

AutoMQ is a diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

AI + Data, online. https://vespa.ai

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

High-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.

Upserts, Deletes And Incremental Processing on Big Data.

A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.

Open-Source Subscription Billing & Payments Platform

Open source version of Google Authenticator (except the Android app)

Distributed Graph Database

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID…

Speech and Vision Based Intelligent Personal Assistant

Ant Media Server — Ultra-low latency streaming engine with WebRTC (~0.5s), SRT, RTMP, HLS, CMAF, adaptive bitrate, transcoding & scaling

Camunda 7 CE is End of Life (EoL). Please check out Camunda 8 instead (https://github.com/camunda/camunda) or read about Camunda 7 Enterprise End of Life (https://camunda.com/blog/2025/02/camunda-7…

Maxwell's daemon, a mysql-to-json kafka producer

Distributed Peer-to-Peer Web Search Engine and Intranet Search Appliance

A modern, web-based SSH console and key management tool. Bastillion gives you a clean, browser-based way to manage SSH access across all your systems. Think of it like a bastion host with a friendl…

A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)

MARY TTS -- an open-source, multilingual text-to-speech synthesis system written in pure java

Ultra-fast matching engine written in Java based on LMAX Disruptor, Eclipse Collections, Real Logic Agrona, OpenHFT, LZ4 Java, and Adaptive Radix Trees.

Access other storage backends via the S3 API