Open-source alternatives to Easy Rules

This project is a business rules management system and rule engine designed to define, execute, and manage complex business logic decoupled from application source code. It provides a business logic compiler that transforms human-readable rule definitions into executable models for high-performance runtime evaluation. The system includes a complex event processing engine for analyzing real-time data streams to identify temporal patterns and a decision model and notation executor that processes structured logic based on industry standards for deterministic results. It utilizes an inference eng

Flowable Engine is a business process management platform and workflow engine used to automate business processes and orchestrate human and system activities. It provides a suite for modeling, deploying, and executing complex workflows and decision rules across distributed environments, including a dedicated case management system for unstructured processes and ad-hoc activities. The platform is a Kubernetes native workflow orchestrator that can be deployed as a containerized service using manifests and Helm charts. It supports an embedded runtime model, allowing the engine to integrate as a

This project is a rule-based decision system that decouples complex business logic from application code by representing rules as portable, structured data. It functions as a business logic engine that evaluates nested boolean conditions to determine application outcomes based on dynamic inputs. The engine distinguishes itself by supporting the asynchronous resolution of external data, allowing it to fetch and inject real-time facts into the evaluation process at runtime. It utilizes a recursive evaluation model to process hierarchical rule sets and triggers event-driven actions immediately u

Activepieces is an open-source, self-hosted workflow automation platform designed to connect third-party applications through modular triggers and actions. It provides a low-code integration framework that allows users to build, manage, and execute complex business logic sequences within isolated, sandboxed environments. The platform distinguishes itself through its focus on embeddability and enterprise-grade security. It features an embedded automation builder that can be integrated into external applications via iframes, supported by comprehensive identity and access management tools such a

Windmill is an internal developer platform and workflow orchestration engine designed to automate complex business processes and data pipelines. It functions as a distributed serverless runner that executes multi-language scripts within isolated, containerized environments, allowing teams to chain discrete tasks into directed acyclic graphs. The platform distinguishes itself through a Git-centric approach to infrastructure, where system state and workflow definitions are synchronized directly from version control. It features a metadata-driven input system that automatically generates user in

Grule is a business rule engine for Go that decouples complex decision-making logic from core application code. It provides a framework for defining, versioning, and executing business rules through a domain-specific language, allowing logic to be managed independently of the underlying software implementation. The engine distinguishes itself by utilizing a formal grammar-based parser and a Rete-inspired pattern matching algorithm to evaluate logic against data facts efficiently. It supports dynamic system modeling by enabling runtime updates to policies and providing thread-safe knowledge ba

Liteflow is a component-based rule engine and workflow orchestrator used to define business logic through a chain of reusable components. It utilizes a structured data language to map logic paths, functioning as a dynamic workflow engine for managing sequences of synchronous and asynchronous tasks. The project is distinguished by its support for hot deployment, allowing rule definitions and execution logic to be updated in real time without restarting the application. It also features a multi-language scripting engine that embeds external scripts into business rules to enable flexible logic c

This project is a business rules and complex event processing engine designed to manage logical decision-making and stateful workflows. It functions as a computational framework that evaluates incoming data streams and facts against conditional logic to derive new conclusions and trigger automated actions. The engine distinguishes itself through a combination of forward-chaining inference and deterministic state machine orchestration. It uses salience-based conflict resolution to prioritize rule execution and supports persistent contextual state tracking to manage long-running business proces

Inbox Zero is an AI-powered email automation platform and inbox organizer. It uses large language models to automatically categorize, label, and archive emails, while providing a conversational interface for managing workflows and drafting responses through natural language. The project distinguishes itself by integrating real-time calendar availability into its drafting process and generating AI-summarized meeting briefings. It supports a pluggable AI provider interface with model fallback chains, allowing it to connect to various cloud or local LLM providers. Users can also control their in

yidaRule is a website integration framework and rule repository designed to standardize how external platforms and applications connect to a core engine. It functions as a collection of JSON configuration rule-sets and web integration schemas that map external site behaviors and data patterns to a structured internal environment. The system utilizes a regex-based protocol parser to resolve and process magnet links, extracting file metadata and identifiers for media retrieval. It manages these interactions through a curated repository of rule files that define the specific logic required for d

imove is a visual workflow engine and low-code logic designer that allows for the creation of executable business rules via flowcharts. It functions as an event-driven process orchestrator, triggering specific logical sequences based on user interface interactions or external network signals. The platform operates as a node-based automation system where data is processed through a chain of discrete, parameterizable code modules. It converts graphical flowchart representations into executable logic steps for both server and client-side processing. The system supports modular logic engineering

This project provides a comprehensive library and framework for automated web accessibility auditing. It enables developers to verify that web content adheres to accessibility standards by executing a suite of programmatic rules against the document object model to identify potential barriers for users of assistive technologies. The tool distinguishes itself through its modular rule-based engine, which performs deep analysis of semantic structures, including the validation of roles, states, and properties. It implements standard algorithms to compute accessible names and performs computed sty

axe-core is an automated accessibility testing engine and compliance auditor designed to scan web and mobile interfaces for violations of industry accessibility standards. It functions as a programmatic scanner and linter that analyzes HTML and source code to identify barriers and verify compliance with accessibility guidelines. The project distinguishes itself by combining a DOM-based rule engine with computer vision and machine learning to detect complex violations that evade traditional analysis, such as visual heading discrepancies and informative images. It provides specialized capabilit

This project is a programming education resource and a collection of vintage game ports. It provides a library of classic computer game implementations and algorithmic problems translated into modern memory-safe scripting languages for educational study and execution. The collection focuses on the implementation of game logic and the practice of fundamental computer science algorithms. It includes diverse examples of procedural content generation, such as random mazes and text-based art, alongside mathematical visualizations. The project covers a wide array of simulation categories, includin

React Doctor is a static analysis tool for React codebases designed to identify security, performance, and architectural issues. It functions as a codebase health diagnostic engine that produces numeric health scores and structured diagnostics to improve maintainability. The tool features an incremental code scanner that evaluates only the files changed between branches or staged in the working tree to provide fast feedback. It is designed to operate as a quality gate within CI pipelines, allowing for the enforcement of codebase health standards by failing builds on critical errors. The anal

Kubescape is a Kubernetes security posture management platform designed to scan clusters, manifests, and images for misconfigurations, vulnerabilities, and compliance risks. It functions as a comprehensive security suite incorporating a compliance scanner, a container image vulnerability scanner, an admission controller for policy enforcement, and a runtime security monitor. The platform distinguishes itself through runtime-aware vulnerability filtering, which maps libraries loaded in memory to determine if vulnerabilities are actually reachable. It also integrates with AI assistants via a Mo

Impeccable is a design system framework for large language models and an AI coding assistant plugin. It functions as an AI-driven UI generator and a rule-based design linter, providing a structured set of instructions and configuration files to standardize the production of professional user interfaces. The project features a design token orchestrator that maps standards across different AI provider environments and a config-driven factory for managing skills across multiple providers. It employs a deterministic rule engine to audit interfaces for accessibility violations, typography errors,

Consent-O-Matic is a browser extension and cookie consent automation tool designed to automatically interact with privacy notices and cookie banners. It utilizes a DOM interaction engine and a privacy preference manager to map user choices to automated actions on third-party consent management providers. The project features a custom rule engine that allows for the import of external rule lists from user-provided URLs to target specific website behaviors. It employs a targeting system that combines CSS selectors with text, style, and iframe filters to locate and interact with precise web elem

This project is a JavaScript-based workflow engine designed to execute business process models defined in standard XML. It functions as a stateful orchestrator that manages the lifecycle of complex processes by moving virtual tokens through tasks, gateways, and events. The engine provides a runtime environment for automating business logic, integrating external services, and coordinating human tasks within Node.js or browser-based applications. The engine distinguishes itself through its high degree of extensibility and state management capabilities. It allows developers to inject custom beha

ZEN Engine is a cross-platform, Open-Source Business Rules Engine (BRE). It is written in Rust and provides native bindings for NodeJS, Python and Go. ZEN Engine allows to load and execute JSON Decision Model (JDM) from JSON files.

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This project provides a Model Context Protocol server that enables autonomous agents to interact with and manage automation workflows. It functions as an integration layer, allowing language models to discover, build, test, and deploy complex automation sequences through natural language instructions and structured schema-based communication. The platform distinguishes itself by offering granular control over automation logic, including the ability to perform surgical, incremental patches to specific workflow nodes rather than replacing entire structures. It supports multi-instance connectivi

This project is a community-curated directory of open-source software designed for deployment in private server environments and home labs. It serves as a comprehensive resource for discovering independent, self-hosted alternatives to mainstream cloud services, enabling users to maintain full data ownership and control over their digital infrastructure. The directory is structured through a hierarchical taxonomy that organizes a vast collection of applications into logical categories, ranging from media management and data analytics to private communication and team productivity tools. It dis

Automatisch is an open-source, self-hosted automation platform designed to orchestrate multi-stage workflows across various third-party web services. It functions as a no-code integration engine that allows users to connect disparate applications, enabling the automated movement of data and the execution of tasks without manual intervention. By running the platform on private infrastructure, users maintain full control over their data and ensure compliance with internal security policies. The platform distinguishes itself through a focus on secure, local credential management and flexible int

Grunt is a build automation tool and JavaScript task runner. It serves as a Node.js automation framework designed to execute automated workflows for building, testing, and deploying software projects. The system functions as a task runner that automates repetitive development chores such as minification, compilation, and testing. It provides orchestration for development tasks, frontend asset pipelines, and continuous integration workflows. The framework utilizes a task-based execution model where developers define a sequence of named functions. This is supported by a plugin-based extensibil

EspoCRM is an open-source customer relationship management platform and SQL-based business application. It serves as a centralized web interface for tracking leads, opportunities, and contacts, providing a sales pipeline manager and a customizable business logic engine. The platform is distinguished by its ability to function as a custom business application builder, allowing for the creation of tailored entities and automated workflows. It integrates marketing automation tools for campaign coordination and a structured customer support ticketing system for case management. The system covers