Top 9 business-process Open-Source Projects

Activiti

2 9,902 8.8 Java

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 engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.
jbpm

5 1,582 7.1 Java

a Business Process Management (BPM) Suite

Project mention: Ask HN: Does async/await exist for transient processes? | news.ycombinator.com | 2023-08-30

See https://www.jbpm.org/ for one approach to the problem of long-running workflows which is based on the standard
http://www.omg.org/bpmplus/
which is not quite the programming model you want but it is similarly breaking up "functions" into small bits and serializing the state so that this can happen over long terms.
What you want has been done on an experimental basis, but maybe not industrialized, see
https://stackoverflow.com/questions/734638/language-that-sup...
https://www.reddit.com/r/ProgrammingLanguages/comments/145du...

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
egon.io

1 701 9.2 TypeScript

A tool to visualize Domain Stories in your browser
Flow Core

0 169 0.0 Ruby

FlowCore is a Rails engine to help you build your automation or business process application.
processpiper

3 134 9.3 Python

An open source python library to generate business process diagram using code or plain text.
VevestaX

10 27 0.0 Jupyter Notebook

2 Lines of code to track ML experiments + EDA + check into Github
orinoco

1 11 3.6 Python

Functional composable pipelines allowing clean separation of the business logic and its implementation
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
kafka-workflow

3 10 0.0 Java

Simple Workflow As Code on Kafka
javactrl-kafka

10 8 0.7 Java

Workflow As Code on Kafka

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).