Open-source alternatives to Tenancy

Mimir is a multi-tenant time series database and distributed metrics store designed for scalable telemetry. It serves as a Prometheus compatible backend, providing long-term storage and a scalable query engine for massive volumes of time-series data. The system is built for multi-tenant observability, isolating telemetry data and resource limits for independent teams or organizations within a single cluster. It ensures high availability and durability by sharding and replicating data across a distributed cluster, utilizing object storage for persistence to eliminate external database dependen

Pinot is a distributed, columnar analytical database designed for high-concurrency, low-latency query processing. It functions as a real-time OLAP datastore, enabling interactive, user-facing analytics by ingesting and querying massive datasets from both streaming and batch sources. The system architecture relies on a centralized controller for cluster coordination and a distributed segment-based storage model to ensure horizontal scalability. The platform distinguishes itself through a hybrid ingestion pipeline that unifies real-time event streams and historical batch data into a single quer

Elsa Core is a workflow engine framework designed for defining, executing, and managing long-running business processes. It functions as a distributed workflow orchestrator and event-driven trigger system, capable of operating as a multi-tenant platform with secure data isolation. The project distinguishes itself through a flexible approach to workflow definitions, supporting a visual drag-and-drop designer, programmatic C# definitions, and portable JSON specifications. It provides a highly extensible architecture allowing for the development of custom activities and the use of a dynamic expr

jshERP is a SpringBoot-based enterprise resource planning system designed for small and medium enterprises. It serves as a multi-tenant SaaS platform that integrates financial accounting, inventory management, and production tracking into a centralized business resource planning environment. The system is distinguished by its multi-tenant architecture, which utilizes logical data isolation to provide private environments for independent organizations. It implements a rigorous business process automation model featuring multi-level approval workflows and hierarchical audit paths to verify and

Cortex is an open-source, horizontally scalable metrics platform that ingests, stores, and queries Prometheus-compatible time-series data with multi-tenant isolation. It accepts metrics via Prometheus remote write and OpenTelemetry, executes PromQL queries against both recent and historical data, and provides a Prometheus-compatible alerting and recording rule engine with an integrated Alertmanager. The system is built as a set of independently scalable microservices that use hash-ring-based sharding, gossip-based cluster membership, and tenant-aware object storage to distribute workloads acro

Tenancy is a PHP package that provides multi-tenant architecture for Laravel applications, automatically isolating data and operations per tenant. It identifies the active tenant from the incoming request's hostname, including support for second-level domains, and scopes all database queries, cache, and storage to that tenant without requiring manual filtering or model trait modifications. The package automatically detects the current tenant from the request context and sets it for the session, ensuring each tenant sees only its own data. It also supports running background jobs that are scop

FoundationDB is an ACID-compliant distributed transactional key-value store. It functions as a scalable database engine that ensures strict serializability and data consistency across a cluster of servers using a shared-nothing architecture. The system is distinguished by its multi-region replication capabilities, allowing data to be synchronized across different datacenters for high availability and disaster recovery. It utilizes optimistic concurrency control to manage distributed transactions and employs a majority-based coordination system to maintain cluster state. The platform provides

Dinky is a real-time data platform for developing, deploying, and operating streaming applications based on Apache Flink. It functions as a SQL streaming IDE and a real-time data pipeline orchestrator, providing a web-based environment for writing and verifying queries with integrated logic plan visualization and lineage tracking. The platform acts as a distributed cluster manager, allowing the registration, monitoring, and administration of multiple processing clusters from a centralized interface. It also serves as a change data capture integration tool, synchronizing real-time database cha

edx-platform is a comprehensive learning management system designed for authoring, hosting, and delivering online courses. It functions as an LTI compliant learning platform that manages student progress and profiles while delivering educational content at scale. The system is divided into a dedicated course authoring environment for creating structured learning paths and a learner-facing platform for course delivery. It includes a centralized identity platform that provides single sign-on authentication across these components. The platform's capabilities cover online course authoring, larg

This project is a comprehensive enterprise architecture for building multi-tenant distributed systems, implemented as a Spring Cloud microservices platform. It provides a complete framework for managing microservices, focusing on multi-tenant data architecture and centralized identity provision. The platform is distinguished by its integrated approach to identity and security, utilizing an OAuth2 identity provider to manage single sign-on, role-based access control, and JWT token issuance across distributed services. It further separates organizational boundaries through multi-tenant data iso

This project is an application framework and boilerplate for enterprise web applications based on ASP.NET Core. It provides a foundation for building large-scale business applications by implementing a domain-driven design framework that organizes application logic into decoupled layers and modules. The framework distinguishes itself through built-in support for multi-tenant software-as-a-service architectures, providing primitives for data, configuration, and interface isolation for multiple customers within a single instance. It also includes an integrated identity management system featuri

FreeSql is a .NET object-relational mapper and data access layer that translates object-oriented code into SQL for multiple relational database providers. It functions as a fluent SQL query builder and database schema synchronizer, allowing developers to align database table and index structures with entity class definitions. The framework is specifically optimized for .NET Native AOT to ensure reduced memory footprints and faster startup times. It includes a database traffic manager to distribute load through read-write splitting, dynamic table sharding, and tenant-based data isolation. Bro

Guns is a development starter kit and application scaffold for building enterprise information systems. It provides a pre-configured architectural foundation integrating a Spring Boot 3 backend with a Vue 3 administrative dashboard. The project distinguishes itself through built-in support for multi-tenant application templates, enabling dynamic database routing to ensure data isolation between different organizations. It includes a role-based access control system and data visibility restrictions to manage permissions and record access across hierarchical organizational structures. The fram

This project is a type-safe web application template and admin dashboard starter built with Next.js, TypeScript, and the shadcn/ui component library. It serves as a multi-tenant SaaS boilerplate designed for developing administrative interfaces and software-as-a-service applications. The starter distinguishes itself through integrated SaaS infrastructure, including multi-tenant workspace management, organization-level permissions, and subscription billing integration. It features role-based access control to gate specific pages and navigation items based on user roles or subscription tiers.

Apache Pulsar is a cloud-native distributed pub-sub messaging system designed for high-performance data ingestion. It functions as a geo-replicated data streamer and a multi-tenant event streaming platform, providing a serverless stream processing engine and a tiered storage messaging broker. The system distinguishes itself by separating serving layers from storage layers to allow independent scaling of compute and data retention. It features native geo-replication to synchronize messages across different geographical regions and employs a multi-layered tenant isolation model using authentica

Neon is a serverless PostgreSQL database platform designed with a decoupled storage and compute architecture. It functions as a multi-tenant system that isolates data and compute resources for independent users on shared cloud infrastructure, utilizing a specialized PostgreSQL storage engine. The platform features a database branching system that allows for the creation of isolated, instant copies of a database for testing and development. It further distinguishes itself with an HTTP-based SQL gateway, enabling the execution of queries via HTTP requests and JSON responses without the need for

OceanBase is a distributed SQL database designed for high availability and strong consistency across multiple nodes and regions. It functions as a hybrid transactional and analytical processing engine, allowing real-time analytics and transactions to execute on a single data copy. The system also serves as a vector database engine for indexing and querying vector data to power semantic search and recommendation systems. The platform features native compatibility layers for MySQL and Oracle, enabling the migration of legacy workloads without rewriting SQL code. It utilizes a Paxos-based distri

vcluster is a Kubernetes virtual cluster platform that creates fully isolated Kubernetes environments with dedicated control planes, API servers, and RBAC on shared physical infrastructure. It virtualizes Kubernetes control planes by running them as pods inside a host cluster, as standalone binaries on bare metal or virtual machines, or within Docker containers, providing each tenant their own isolated Kubernetes environment without the overhead of managing separate physical clusters. The platform enables multi-tenant Kubernetes isolation through multiple tenancy models, from shared node pool

Lamp Cloud is a multi-tenant SaaS backend framework built on Java and Spring Cloud that provides a complete foundation for building enterprise-grade administration systems. Its core identity centers on supporting multiple tenant isolation strategies—including database-per-tenant, schema-per-tenant, and shared-table modes—that can be switched without altering business code, alongside a role-based access control system enforced at the gateway layer across all microservices. The framework distinguishes itself through comprehensive tenant lifecycle management tools that allow creating, configurin

Apache Pulsar is a cloud-native message queue and distributed publish-subscribe messaging system. It serves as a multi-tenant event streaming platform designed to route data streams for asynchronous communication between producers and consumers. The system distinguishes itself through geo-replication, synchronizing data across multiple geographic regions to ensure high availability and low latency. It implements a multi-tenant architecture that provides isolation and resource management for millions of independent topics. The platform covers high-throughput data streaming and event-driven da

Chartbrew is a self-hosted business intelligence platform and data visualization engine designed to transform raw data from SQL databases and external API endpoints into interactive charts and dashboards. It serves as a tool for building analytics dashboards that monitor business metrics and KPIs through a privately hosted environment. The platform distinguishes itself with an embedded analytics workflow, allowing users to generate secure, time-limited shared links and iframes to display private charts on external websites. It also provides programmatic chart generation via API and integrates

Engine is a content management system built with Ruby that operates as a headless content management platform and multi-tenant website hosting system. It manages multiple distinct websites and their isolated configurations from a single centralized software installation, while exposing programmatic endpoints to administer websites and custom data types remotely. The platform relies on schema-driven content modeling to define custom data structures and user interfaces dynamically from configuration schemas rather than hardcoded database tables. Dynamic web pages and structured content are rend

GAM is a command-line tool for administering Google Workspace and Cloud Identity. It translates command-line arguments into structured API calls, enabling administrators to manage users, groups, organizational units, and domain settings across a Google Workspace environment. The tool handles authentication through OAuth2 flows, service accounts, and workload identity federation, and supports multi-tenant configurations for managing multiple domains or cloud projects from a single installation. GAM distinguishes itself through its batch processing and automation capabilities. It can process la

FalkorDB is a high-performance graph database management system and vector graph database. It serves as a knowledge graph construction tool and a GraphRAG knowledge store, integrating structured property graphs with vector search to provide grounded context for large language models. The engine is designed as a multi-tenant graph engine, capable of hosting thousands of isolated datasets within a single instance. The system distinguishes itself by using linear algebra for query execution, treating relationship tensors as matrix multiplications to achieve low-latency multi-hop traversals. It ut

Util is a comprehensive development framework for .NET designed to implement layered architectures and domain driven design. It provides a toolkit of base classes and tools for building full stack applications, specifically focusing on the creation of backend admin frameworks and management interfaces. The project distinguishes itself through a boilerplate generator that produces the necessary types and classes to standardize repetitive architectural patterns. It also includes a micro-frontend orchestrator that enables the splitting of large frontend modules into independent projects for sepa

This project is a production-ready starter kit and boilerplate for building multi-tenant software-as-a-service applications using .NET and React. It provides a multi-tenant application framework and a cloud-native infrastructure kit designed to support scalable cloud services. The project distinguishes itself through a modular monolith architecture that organizes business logic into isolated bounded contexts to prevent code entanglement. It implements comprehensive SaaS identity management, including role-based access control, account impersonation, and strict tenant data isolation across the