10+ Best Open Source Projects using Apache Kafka in 2026

n8n

AI-powered workflow automation for technical teams

Stars
186,168
Forks
57,241
Last commit
11 hours ago

A flexible automation platform combining AI capabilities with business process automation, offering both code-based and no-code options for technical teams.

Open Source Alternative to:

Make

Uptime Kuma

Self-hosted monitoring tool for websites and services

Stars
86,056
Forks
7,748
Last commit
15 hours ago

A user-friendly, open-source uptime monitoring solution for tracking website and service availability

Open Source Alternative to:

Opsgenie

Umami

Empower your website with privacy-focused analytics

Stars
36,402
Forks
7,004
Last commit
19 hours ago

A lightweight, open-source alternative to Google Analytics that respects user privacy and provides valuable insights.

Open Source Alternative to:

Google Analytics

PostHog

Unlock Product Insights with Open-Source Analytics

Stars
34,187
Forks
2,669
Last commit
9 hours ago

All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product.

Open Source Alternative to:

Google Analytics

Huly

Unified workspace for seamless team collaboration

Stars
25,477
Forks
1,854
Last commit
10 hours ago

An open-source platform that combines project management, team communication, document collaboration, and virtual office spaces in one integrated solution.

Open Source Alternative to:

Notion

Cube

Unify data models and metrics across your entire stack

Stars
19,885
Forks
2,008
Last commit
10 hours ago

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

Open Source Alternative to:

Snowflake

Windmill

Open-source workflow automation for developers

Stars
16,373
Forks
937
Last commit
14 hours ago

Powerful, self-hosted platform for building and running workflows, scripts, and apps with code-first approach and collaborative features.

Open Source Alternative to:

Make

Helicone

Build reliable AI apps with comprehensive observability

Stars
5,582
Forks
559
Last commit
7 days ago

Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.

Open Source Alternative to:

DataDog

Jitsu

Open-source data integration for modern stacks

Stars
4,699
Forks
350
Last commit
1 day ago

Collect, transform, and sync data across your entire infrastructure with a flexible, code-based approach to data integration.

Open Source Alternative to:

Segment

Ever Gauzy

Comprehensive open-source business management platform

Stars
3,665
Forks
762
Last commit
1 day ago

All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations

Open Source Alternative to:

SAP

PipesHub

Open-source AI platform for enterprise search & workflow

Stars
2,854
Forks
449
Last commit
10 hours ago

Transform scattered business data into actionable insights with AI-powered enterprise search, workflow automation, and explainable results with full source citations.

Open Source Alternative to:

Glean

Autumn

Stripe payments, usage tracking, and paywalls in 3 functions

Stars
2,519
Forks
214
Last commit
19 hours ago

Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.

Open Source Alternative to:

Stripe Billing

Dittofeed

Open-source customer engagement platform for automation

Stars
2,739
Forks
339
Last commit
1 month ago

Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.

Open Source Alternative to:

Mailchimp

FeatBit

Open-source feature flag management for seamless deployments

Stars
1,797
Forks
140
Last commit
11 hours ago

FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.

Open Source Alternative to:

LaunchDarkly

Trench

Fast, scalable analytics infrastructure

Stars
1,626
Forks
64
Last commit
24 days ago

Open source analytics platform built on ClickHouse and Kafka, offering high-speed event tracking and real-time querying capabilities.

Open Source Alternative to:

June

Databuddy

Privacy-first analytics without cookies or tracking

Stars
1,003
Forks
180
Last commit
17 hours ago

Get powerful web analytics with zero cookies, 100% GDPR compliance, and full data ownership. Lightweight 3KB script delivers real-time insights without compromising user privacy.

Open Source Alternative to:

Google Analytics

Hive

Open-source GraphQL federation platform

Stars
476
Forks
132
Last commit
18 hours ago

A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs

Open Source Alternative to:

Apollo GraphQL

n8n

AI-powered workflow automation for technical teams

Stars
186,168
Forks
57,241
Last commit
11 hours ago

A flexible automation platform combining AI capabilities with business process automation, offering both code-based and no-code options for technical teams.

Open Source Alternative to:

Make

Uptime Kuma

Self-hosted monitoring tool for websites and services

Stars
86,056
Forks
7,748
Last commit
15 hours ago

A user-friendly, open-source uptime monitoring solution for tracking website and service availability

Open Source Alternative to:

Opsgenie

Umami

Empower your website with privacy-focused analytics

Stars
36,402
Forks
7,004
Last commit
19 hours ago

A lightweight, open-source alternative to Google Analytics that respects user privacy and provides valuable insights.

Open Source Alternative to:

Google Analytics

PostHog

Unlock Product Insights with Open-Source Analytics

Stars
34,187
Forks
2,669
Last commit
9 hours ago

All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product.

Open Source Alternative to:

Google Analytics

Huly

Unified workspace for seamless team collaboration

Stars
25,477
Forks
1,854
Last commit
10 hours ago

An open-source platform that combines project management, team communication, document collaboration, and virtual office spaces in one integrated solution.

Open Source Alternative to:

Notion

Cube

Unify data models and metrics across your entire stack

Stars
19,885
Forks
2,008
Last commit
10 hours ago

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

Open Source Alternative to:

Snowflake

Windmill

Open-source workflow automation for developers

Stars
16,373
Forks
937
Last commit
14 hours ago

Powerful, self-hosted platform for building and running workflows, scripts, and apps with code-first approach and collaborative features.

Open Source Alternative to:

Make

Helicone

Build reliable AI apps with comprehensive observability

Stars
5,582
Forks
559
Last commit
7 days ago

Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.

Open Source Alternative to:

DataDog

Jitsu

Open-source data integration for modern stacks

Stars
4,699
Forks
350
Last commit
1 day ago

Collect, transform, and sync data across your entire infrastructure with a flexible, code-based approach to data integration.

Open Source Alternative to:

Segment

Ever Gauzy

Comprehensive open-source business management platform

Stars
3,665
Forks
762
Last commit
1 day ago

All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations

Open Source Alternative to:

SAP

PipesHub

Open-source AI platform for enterprise search & workflow

Stars
2,854
Forks
449
Last commit
10 hours ago

Transform scattered business data into actionable insights with AI-powered enterprise search, workflow automation, and explainable results with full source citations.

Open Source Alternative to:

Glean

Autumn

Stripe payments, usage tracking, and paywalls in 3 functions

Stars
2,519
Forks
214
Last commit
19 hours ago

Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.

Open Source Alternative to:

Stripe Billing

Dittofeed

Open-source customer engagement platform for automation

Stars
2,739
Forks
339
Last commit
1 month ago

Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.

Open Source Alternative to:

Mailchimp

FeatBit

Open-source feature flag management for seamless deployments

Stars
1,797
Forks
140
Last commit
11 hours ago

FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.

Open Source Alternative to:

LaunchDarkly

Trench

Fast, scalable analytics infrastructure

Stars
1,626
Forks
64
Last commit
24 days ago

Open source analytics platform built on ClickHouse and Kafka, offering high-speed event tracking and real-time querying capabilities.

Open Source Alternative to:

June

Databuddy

Privacy-first analytics without cookies or tracking

Stars
1,003
Forks
180
Last commit
17 hours ago

Get powerful web analytics with zero cookies, 100% GDPR compliance, and full data ownership. Lightweight 3KB script delivers real-time insights without compromising user privacy.

Open Source Alternative to:

Google Analytics

Hive

Open-source GraphQL federation platform

Stars
476
Forks
132
Last commit
18 hours ago

A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs

Open Source Alternative to:

Apollo GraphQL

Open Source Projects using Apache Kafka

A curated collection of the 17 best open source software using Apache Kafka. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Browse tools using Apache Kafka by category

AI & Machine Learning Tools using Apache Kafka

AI Search Tools using Apache Kafka

API Infrastructure Tools using Apache Kafka

Build & Deployment Tools using Apache Kafka

Collaborative Workspaces using Apache Kafka

CRM Systems using Apache Kafka

Browse tools using Apache Kafka by category

AI & Machine Learning Tools using Apache Kafka

AI Search Tools using Apache Kafka

API Infrastructure Tools using Apache Kafka

Build & Deployment Tools using Apache Kafka

Collaborative Workspaces using Apache Kafka

CRM Systems using Apache Kafka

Customer Communication Platforms using Apache Kafka

ERP Systems using Apache Kafka

ETL & Data Integration Tools using Apache Kafka

Event Streaming Platforms using Apache Kafka

Feature Flag Tools using Apache Kafka

HR Management Systems (HRMS) using Apache Kafka

Infrastructure Monitoring Tools using Apache Kafka

Integration Platforms using Apache Kafka

Log Management Tools using Apache Kafka

Low-Code/No-Code Platforms using Apache Kafka

Machine Learning Infrastructure Tools using Apache Kafka

Marketing Automation Tools using Apache Kafka

PaaS & Deployment Tools using Apache Kafka

Product Analytics using Apache Kafka

Project Management Suites using Apache Kafka

Semantic Layer Platforms using Apache Kafka

Status Pages using Apache Kafka

Stream Processing Tools using Apache Kafka

Subscription & Billing Management Tools using Apache Kafka

Uptime Monitoring Tools using Apache Kafka

Video Conferencing & Virtual Office Tools using Apache Kafka

Web Analytics using Apache Kafka

Workflow Automation Tools using Apache Kafka

Workflow Orchestration Tools using Apache Kafka