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Open Source Projects using Elasticsearch

A curated collection of the 42 best open source software using Elasticsearch. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Build and deploy AI agents and RAG pipelines visually
  • Stars

    160,446
  • Last commit

    5 hours ago
  • License

    Unknown
Visual platform for building agentic workflows, RAG pipelines, and LLM-powered apps. Supports hundreds of models, MCP integration, and self-hosted deployment.

Open Source Alternative to:

One interface for every AI model you run or connect
  • Stars

    157,822
  • Last commit

    5 hours ago
  • License

    BSD-3-Clause
Self-hosted AI platform that connects local and cloud models, extends with Python, and keeps your data under your control.

Open Source Alternative to:

Visual builder for AI agents and RAG pipelines
  • Stars

    156,345
  • Last commit

    9 hours ago
  • License

    MIT
Build, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.

Open Source Alternative to:

The leading distributed search and analytics engine
  • Stars

    78,496
  • Last commit

    6 hours ago
  • License

    Unknown
Elasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management.

Open Source Alternative to:

Docs, whiteboards, and databases in one privacy-first workspace
  • Stars

    74,231
  • Last commit

    22 hours ago
  • License

    MIT
An open-source, local-first knowledge base that merges structured docs, infinite whiteboards, databases, and AI into a single workspace for teams and creators.

Open Source Alternative to:

Real-time monitoring for systems and applications
  • Stars

    81,282
  • Last commit

    8 hours ago
  • License

    GPL-3.0
Powerful, efficient, and user-friendly monitoring solution for servers, containers, and applications with instant insights and alerts.

Open Source Alternative to:

Visual builder for AI agents and LLM workflows
  • Stars

    55,552
  • Last commit

    3 months ago
  • License

    Apache-2.0
Open source platform for building AI agents, chatbots, and multi-agent systems using a drag-and-drop interface, with support for 100+ LLMs and RAG.

Open Source Alternative to:

Secure collaboration platform for mission-critical work
  • Stars

    39,532
  • Last commit

    5 hours ago
  • License

    Unknown
Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.

Open Source Alternative to:

Secure secret management for modern development teams
  • Stars

    30,278
  • Last commit

    5 hours ago
  • License

    MIT
End-to-end encrypted secret management platform for seamless integration and enhanced security in development workflows.

Open Source Alternative to:

All-in-one workspace for project, chat, and docs
  • Stars

    28,048
  • Last commit

    9 hours ago
  • License

    EPL-2.0
Combines project management, team chat, virtual office, and collaborative docs into a single platform. A self-hostable alternative to Linear, Jira, Slack, and Notion.

Open Source Alternative to:

Open source Laravel eCommerce platform for modern businesses
  • Stars

    28,332
  • Last commit

    9 hours ago
  • License

    MIT
A flexible eCommerce platform built on Laravel that enables businesses to create marketplaces, mobile apps, and headless commerce solutions

Open Source Alternative to:

Build powerful web apps without complex coding
  • Stars

    28,384
  • Last commit

    18 hours ago
  • License

    Unknown
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.

Open Source Alternative to:

Distributed tracing, metrics, logs, and GenAI monitoring in one
  • Stars

    24,993
  • Last commit

    6 hours ago
  • License

    Apache-2.0
Open source observability platform covering distributed tracing, metrics, logs, profiling, and LLM cost tracking across 10+ languages with eBPF support on Kubernetes.

Open Source Alternative to:

Open-source data integration for modern teams
  • Stars

    22,318
  • Last commit

    10 hours ago
  • License

    Elastic-2.0
Seamlessly sync data from any source to any destination with a flexible, extensible platform that grows with your data needs.

Open Source Alternative to:

Build resilient applications with durable execution workflows
  • Stars

    24,195
  • Last commit

    6 hours ago
  • License

    MIT
Open source platform that eliminates infrastructure complexity by handling failures, network issues, and long-running processes to ensure reliable workflow execution

Open Source Alternative to:

Unify data models and metrics across your entire stack
  • Stars

    21,170
  • Last commit

    7 hours ago
  • License

    Unknown
Cube is a universal semantic layer that connects data sources to analytics tools, providing consistent definitions and fast queries.

Open Source Alternative to:

Privacy-first knowledge base with any AI model you choose
  • Stars

    16,786
  • Last commit

    7 hours ago
  • License

    Apache-2.0
Self-hostable NotebookLM alternative that lets teams build searchable knowledge bases from diverse sources, with support for any LLM and no data limits.

Open Source Alternative to:

Centralize, transform, and stash your data
  • Stars

    14,971
  • Last commit

    9 hours ago
  • License

    Unknown
Logstash is a free and open server-side data processing pipeline that ingests data from multiple sources, transforms it, and sends it to your desired destination.

Open Source Alternative to:

Unify, automate, and elevate your monitoring workflow
  • Stars

    12,494
  • Last commit

    1 day ago
  • License

    MIT
Open-source platform for centralizing alerts, automating responses, and enhancing incident management across your tech stack.

Open Source Alternative to:

Your all-in-one marketplace for digital creators and products
  • Stars

    Stars growing over the last 30 days10,095
  • Last commit

    5 hours ago
  • License

    MIT
A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Open Source Alternative to:

Build product integrations with 500+ APIs in hours
  • Stars

    Stars growing over the last 30 days13,123
  • Last commit

    5 hours ago
  • License

    Elastic-2.0
Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Self-hosted session replay with complete data control
  • Stars

    13,098
  • Last commit

    20 hours ago
  • License

    AGPL-3.0
Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance.

Open Source Alternative to:

AI-powered PIM for managing product catalogs at scale
  • Stars

    11,054
  • Last commit

    1 day ago
  • License

    MIT
Open source Product Information Management system with an AI agent for catalog enrichment, bulk updates, multilingual content, and omnichannel distribution.

Open Source Alternative to:

Lightning-fast search for massive datasets
  • Stars

    11,765
  • Last commit

    12 hours ago
  • License

    Apache-2.0
High-performance search engine designed for big data, offering scalability, real-time indexing, and cost-effective operations.

Open Source Alternative to:

Magical data pipeline tool for seamless transformations
  • Stars

    8,841
  • Last commit

    13 days ago
  • License

    Apache-2.0
Open-source data pipeline platform for effortless data integration, transformation, and orchestration using Python, SQL, and R.

Open Source Alternative to:

Flexible e-commerce for modern businesses
  • Stars

    8,566
  • Last commit

    17 hours ago
  • License

    MIT
A headless, API-first e-commerce framework built on Node.js with TypeScript, offering customization and scalability for online stores.

Open Source Alternative to:

Comprehensive monitoring and incident management platform
  • Stars

    7,792
  • Last commit

    5 hours ago
  • License

    Apache-2.0
All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

Open-source serverless CMS for modern web projects
  • Stars

    8,048
  • Last commit

    6 hours ago
  • License

    MIT
A powerful, scalable platform for building custom websites and apps with serverless architecture, offering flexibility and cost-efficiency.

Open Source Alternative to:

Sync and transform data from any source to any destination
  • Stars

    6,550
  • Last commit

    19 hours ago
  • License

    MPL-2.0
CloudQuery is an open-source ELT platform that enables easy data integration from hundreds of cloud and security tools to any destination.

Open Source Alternative to:

Lightweight distributed storage for self-hosting
  • Stars

    Stars growing over the last 30 days4,828
  • Last commit

    12 days ago
  • License

    AGPL-3.0
Self-contained distributed object storage with S3 API compatibility. Runs on minimal hardware, replicates data across 3 zones for maximum resilience.

Open Source Alternative to:

Open-source growth platform for customer-centric teams
  • Stars

    4,111
  • Last commit

    5 hours ago
  • License

    AGPL-3.0
All-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.

Open Source Alternative to:

Get instant answers from your company knowledge
  • Stars

    3,050
  • Last commit

    9 days ago
  • License

    Apache-2.0
AI-powered search and RAG platform that connects to 100+ enterprise tools without data migration. Deploy securely on-premises with any LLM.

Open Source Alternative to:

Open-source customer communication platform
  • Stars

    3,581
  • Last commit

    4 months ago
  • License

    Unknown
Versatile messaging solution for businesses to engage customers through multiple channels, with AI-powered automation and analytics.

Open Source Alternative to:

Managed identity and access management for any app
  • Stars

    2,143
  • Last commit

    1 day ago
  • License

    Apache-2.0
Authgear is a managed IAM platform handling authentication, SSO, and user management for B2C and B2B apps, with biometrics, MFA, and zero-trust support.

Open Source Alternative to:

Open-source message stream built on Postgres
  • Stars

    2,225
  • Last commit

    8 months ago
  • License

    MIT
Sequin offers a feature-rich messaging system with a simple HTTP API, providing RabbitMQ-like functionality without adding complexity to your stack.

Open Source Alternative to:

Simplify server management with an intuitive interface
  • Stars

    768
  • Last commit

    16 hours ago
  • License

    MIT
A user-friendly, open-source control panel for effortless server administration, designed for both beginners and experts.

Open Source Alternative to:

Real-time fraud detection and AML compliance engine
  • Stars

    618
  • Last commit

    1 day ago
  • License

    Elastic-2.0
An open-source platform that enables fintech companies to monitor transactions and user activity, detect suspicious behaviors, and automate fraud prevention in real-time.

Open Source Alternative to:

Unified API, event, and AI agent management platform
  • Stars

    467
  • Last commit

    6 hours ago
  • License

    Apache-2.0
Full-lifecycle API management platform that unifies synchronous and asynchronous ecosystems. Manage APIs, event streams, and AI agents with enterprise security and 4x faster gateway performance.

Open Source Alternative to:

Open-source ideation tool for product feedback management
  • Stars

    451
  • Last commit

    5 days ago
  • License

    Apache-2.0
ClearFlask is an open-source platform for collecting, analyzing, and acting on customer feedback to drive product development.

Open Source Alternative to:

Connect APIs, databases, and streams without glue code
  • Stars

    361
  • Last commit

    4 months ago
  • License

    Unknown
Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.

Open Source Alternative to:

Secure open source messaging for professional teams
  • Stars

    173
  • Last commit

    7 hours ago
  • License

    AGPL-3.0
Free Matrix-based messenger with end-to-end encryption, multi-platform bridges, and on-premise deployment. Connect across 30+ networks securely.

Open Source Alternative to:

Ask once, get answers across every document
  • Stars

    13
  • Last commit

    8 days ago
  • License

    AGPL-3.0
Upload files, ask questions, and get AI‑backed answers with citations. Compare, synthesize, and export results for teams and polished outputs.

Open Source Alternative to: