10+ Best Apache-2.0 Licensed Open Source Software in 2026

Cline

Open-source AI coding agent with frontier models

Stars
60,463
Forks
6,181
Last commit
9 hours ago

Open-source AI coding agent offering direct access to frontier models with complete transparency. Features Plan Mode, MCP integration, and zero vendor lock-in.

Open Source Alternative to:

Cursor

Parlant

Build compliant customer-facing AI agents with control

Stars
17,984
Forks
1,527
Last commit
17 hours ago

Conversational AI engine that keeps agents business-aligned and compliant as you scale. Build adaptive agents through feedback-driven development.

Open Source Alternative to:

Voiceflow

Openlane

Automate compliance across SOC 2, ISO 27001, and NIST 800-53 frameworks

Stars
235
Forks
41
Last commit
1 day ago

Open-source compliance automation platform that centralizes evidence collection, control tracking, and audit reporting across multiple frameworks without manual spreadsheets.

Open Source Alternative to:

Vanta

Supabase

Open-source Firebase alternative for modern app development

Stars
101,133
Forks
12,126
Last commit
8 hours ago

A powerful, scalable backend platform offering real-time databases, authentication, storage, and serverless functions for rapid development.

Open Source Alternative to:

Firebase

Home Assistant

Local control smart home automation with privacy first

Stars
86,107
Forks
37,281
Last commit
6 hours ago

Open source home automation platform supporting 1000+ devices with local control, powerful automations, custom dashboards, and voice assistant. No cloud required.

Open Source Alternative to:

HomeKit

LocalSend

Share files securely across all devices without servers

Stars
78,515
Forks
4,193
Last commit
14 days ago

Free, open-source file sharing tool for nearby devices. Cross-platform support with end-to-end encryption, no registration required, automatic device discovery.

Open Source Alternative to:

Apple AirDrop

Crawl4AI

Open-source web crawler optimized for AI and LLMs

Stars
64,301
Forks
6,587
Last commit
9 hours ago

Fast, AI-ready web crawler that generates clean markdown for RAG pipelines. Features adaptive crawling, structured extraction, and advanced browser control.

Open Source Alternative to:

Browserbase

Flowise AI

Build AI agents and workflows with visual drag-and-drop

Stars
52,068
Forks
24,177
Last commit
21 hours ago

Open source platform for building AI agents, chatbots, and LLM workflows using visual drag-and-drop interface. No coding required for rapid prototyping.

Open Source Alternative to:

n8n

Apache Superset

Modern data exploration and visualization platform

Stars
72,492
Forks
17,068
Last commit
16 hours ago

Open-source solution for fast, intuitive data exploration and visualization, supporting various databases and skill levels.

Open Source Alternative to:

Power BI

Mem0

Give your AI apps persistent memory and intelligence

Stars
53,556
Forks
6,004
Last commit
11 hours ago

Universal memory layer for LLM applications that learns from user interactions, reduces token costs by 80%, and delivers personalized AI experiences.

Open Source Alternative to:

LangChain

Alacritty

High-performance terminal with GPU acceleration

Stars
63,548
Forks
3,421
Last commit
6 days ago

Modern cross-platform terminal emulator with OpenGL acceleration, extensive configuration options, and vi mode support for enhanced productivity.

Open Source Alternative to:

Warp

Coolify

Self-hosted cloud platform for effortless deployment

Stars
53,832
Forks
4,184
Last commit
12 hours ago

Open-source, self-hosted PaaS for seamless application deployment, database management, and service orchestration

Open Source Alternative to:

Vercel

Aider

AI-powered pair programming in your terminal

Stars
43,592
Forks
4,230
Last commit
11 days ago

A terminal-based coding assistant that helps you write, modify and understand code through natural language conversations with AI models

Open Source Alternative to:

Cursor

Jan

Your AI-powered local assistant for seamless productivity

Stars
41,922
Forks
2,781
Last commit
6 hours ago

A powerful, open-source AI chat interface that runs locally, offering privacy, customization, and seamless integration with your workflow.

Open Source Alternative to:

Grok

Hyperswitch

Open source payment orchestrator for global transactions

Stars
42,483
Forks
4,597
Last commit
6 hours ago

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

Open Source Alternative to:

Stripe Billing

ClickHouse

Lightning-fast analytics for massive datasets

Stars
46,966
Forks
8,316
Last commit
6 hours ago

High-performance columnar OLAP database system for real-time analytics on big data, with SQL support and linear scalability.

Open Source Alternative to:

Snowflake

Agno

Model-agnostic platform for building intelligent AI agents

Stars
39,531
Forks
5,270
Last commit
15 hours ago

Open-source platform that enables developers to create, deploy and monitor AI agents with built-in memory, knowledge integration, and external tool connectivity.

Open Source Alternative to:

Kiro

Milvus

High-performance vector database for GenAI applications

Stars
43,869
Forks
3,966
Last commit
9 hours ago

Open-source vector database optimized for similarity search, scaling to billions of vectors with minimal performance loss

Open Source Alternative to:

Supabase

AppSmith

Empower your team to build custom internal tools rapidly

Stars
39,653
Forks
4,549
Last commit
2 days ago

Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.

Open Source Alternative to:

Make

Continue

AI-powered code assistant for amplified development

Stars
32,661
Forks
4,396
Last commit
1 day ago

Open-source AI code assistant that connects models and context to build custom autocomplete and chat experiences inside your IDE.

Open Source Alternative to:

Cursor

TiDB

Scale-out SQL database for real-time analytics

Stars
39,983
Forks
6,165
Last commit
7 hours ago

Distributed SQL database combining OLTP and OLAP capabilities, offering horizontal scalability, high availability, and real-time analytics.

Open Source Alternative to:

Fauna

Void

Open source AI code editor with full privacy

Stars
28,608
Forks
2,437
Last commit
3 months ago

Void is an open-source alternative to Cursor, offering AI-powered coding features while maintaining full control over your data and privacy.

Open Source Alternative to:

Cursor

Insomnia

Powerful API development and testing made effortless

Stars
38,328
Forks
2,279
Last commit
3 days ago

Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms.

Open Source Alternative to:

Postman

Keycloak

Secure authentication and access control made simple

Stars
33,960
Forks
8,256
Last commit
11 hours ago

Comprehensive open source identity management solution offering single sign-on, social login, and fine-grained authorization for applications and services.

Open Source Alternative to:

Auth0

CasaOS

Your personal cloud OS for simple, elegant home servers

Stars
33,675
Forks
1,889
Last commit
9 months ago

CasaOS is an open-source personal cloud system that makes it easy to set up and manage your own home server

Open Source Alternative to:

Umbrel

Onlook

Visual React editor with real-time code updates

Stars
25,494
Forks
1,954
Last commit
24 days ago

Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.

Open Source Alternative to:

Webflow

Harness

End-to-end open source software delivery platform

Stars
34,988
Forks
3,019
Last commit
3 days ago

Streamline code delivery with an open-source CI/CD platform featuring Git integration, fast pipelines, and hosted development environments.

Open Source Alternative to:

GitHub

Qdrant

Fast, scalable vector database for AI applications

Stars
30,436
Forks
2,179
Last commit
12 hours ago

Qdrant is an open-source vector database that provides high-performance similarity search for AI and machine learning applications.

Open Source Alternative to:

Supabase

Reflex

Build full-stack web apps in Python without JavaScript

Stars
28,304
Forks
1,708
Last commit
2 days ago

Create complete web applications using pure Python code. Features AI-powered generation, built-in components, and one-click deployment with automatic scaling.

Open Source Alternative to:

Lovable

Chat2DB

Transform natural language into SQL queries with AI

Stars
25,426
Forks
2,787
Last commit
29 days ago

AI-powered SQL client that converts natural language to SQL queries. Supports MySQL, Redis, MongoDB with Text2SQL, BI dashboards, and secure database management.

Open Source Alternative to:

TablePlus

Chroma

Open-source vector database for AI search and retrieval

Stars
27,515
Forks
2,204
Last commit
1 day ago

Open-source vector database designed for AI applications. Store, search, and retrieve embeddings with semantic similarity matching and metadata filtering.

Open Source Alternative to:

Supabase

Ntfy

Simple, fast, and secure push notifications for all

Stars
29,807
Forks
1,239
Last commit
9 days ago

A lightweight, open-source solution for sending real-time notifications to your devices, with end-to-end encryption and no sign-up required.

Open Source Alternative to:

LogSnag

Roo Code

AI dev team in your VS Code editor

Stars
23,215
Forks
3,007
Last commit
15 hours ago

Open-source AI coding assistant with multi-file editing, agentic workflows, and model flexibility. Transform your VS Code into an intelligent development environment.

Open Source Alternative to:

Cursor

Jitsi

Private, secure video calls with no account needed

Stars
29,042
Forks
7,871
Last commit
24 hours ago

Host encrypted video conferences directly in your browser, deploy on your own servers, or integrate into applications - all with this powerful open source platform.

Open Source Alternative to:

Microsoft Teams

Zulip

Organized team chat for distributed teams

Stars
25,051
Forks
9,794
Last commit
1 day ago

Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.

Open Source Alternative to:

Microsoft Teams

InfluxDB

Purpose-built database for time series data management

Stars
31,442
Forks
3,705
Last commit
3 days ago

High-performance database optimized for collecting, storing, and analyzing time-stamped data in real-time across cloud, on-premises, or edge environments.

Open Source Alternative to:

MongoDB

Kestra

Orchestrate data workflows with ease and precision

Stars
26,720
Forks
2,553
Last commit
14 hours ago

A powerful, open-source orchestrator for building, running, and monitoring complex data pipelines and workflows

Open Source Alternative to:

n8n

Suna

AI agent that autonomously handles real-world tasks

Stars
19,640
Forks
3,388
Last commit
1 day ago

Open source AI assistant that executes complex tasks from market research to travel planning through natural conversation, with full transparency and community-driven development.

Open Source Alternative to:

Manus

Letta

Build and deploy AI agents with advanced memory

Stars
22,168
Forks
2,345
Last commit
8 days ago

Letta is an open-source platform for creating AI agents with built-in memory, reasoning, and support for thousands of tools.

Open Source Alternative to:

Perplexity

Graphite

Professional vector graphics with procedural design power

Stars
25,178
Forks
1,149
Last commit
1 day ago

Free open-source vector editor with nondestructive node-based workflow. Create graphics procedurally with infinite scalability. Runs in browser, exports SVG/PNG/JPG.

Open Source Alternative to:

Canva

Pulumi

Infrastructure as code in your favorite language

Stars
25,068
Forks
1,354
Last commit
13 hours ago

Pulumi enables developers to define and manage cloud infrastructure using familiar programming languages instead of domain-specific languages.

Open Source Alternative to:

Red Hat Ansible

Prefect

Resilient workflow orchestration for data pipelines

Stars
22,209
Forks
2,273
Last commit
9 hours ago

Prefect offers modern tools to build, monitor, and react to data workflows efficiently and reliably.

Open Source Alternative to:

Fivetran

Cline

Open-source AI coding agent with frontier models

Stars
60,463
Forks
6,181
Last commit
9 hours ago

Open-source AI coding agent offering direct access to frontier models with complete transparency. Features Plan Mode, MCP integration, and zero vendor lock-in.

Open Source Alternative to:

Cursor

Parlant

Build compliant customer-facing AI agents with control

Stars
17,984
Forks
1,527
Last commit
17 hours ago

Conversational AI engine that keeps agents business-aligned and compliant as you scale. Build adaptive agents through feedback-driven development.

Open Source Alternative to:

Voiceflow

Openlane

Automate compliance across SOC 2, ISO 27001, and NIST 800-53 frameworks

Stars
235
Forks
41
Last commit
1 day ago

Open-source compliance automation platform that centralizes evidence collection, control tracking, and audit reporting across multiple frameworks without manual spreadsheets.

Open Source Alternative to:

Vanta

Supabase

Open-source Firebase alternative for modern app development

Stars
101,133
Forks
12,126
Last commit
8 hours ago

A powerful, scalable backend platform offering real-time databases, authentication, storage, and serverless functions for rapid development.

Open Source Alternative to:

Firebase

Home Assistant

Local control smart home automation with privacy first

Stars
86,107
Forks
37,281
Last commit
6 hours ago

Open source home automation platform supporting 1000+ devices with local control, powerful automations, custom dashboards, and voice assistant. No cloud required.

Open Source Alternative to:

HomeKit

LocalSend

Share files securely across all devices without servers

Stars
78,515
Forks
4,193
Last commit
14 days ago

Free, open-source file sharing tool for nearby devices. Cross-platform support with end-to-end encryption, no registration required, automatic device discovery.

Open Source Alternative to:

Apple AirDrop

Crawl4AI

Open-source web crawler optimized for AI and LLMs

Stars
64,301
Forks
6,587
Last commit
9 hours ago

Fast, AI-ready web crawler that generates clean markdown for RAG pipelines. Features adaptive crawling, structured extraction, and advanced browser control.

Open Source Alternative to:

Browserbase

Flowise AI

Build AI agents and workflows with visual drag-and-drop

Stars
52,068
Forks
24,177
Last commit
21 hours ago

Open source platform for building AI agents, chatbots, and LLM workflows using visual drag-and-drop interface. No coding required for rapid prototyping.

Open Source Alternative to:

n8n

Apache Superset

Modern data exploration and visualization platform

Stars
72,492
Forks
17,068
Last commit
16 hours ago

Open-source solution for fast, intuitive data exploration and visualization, supporting various databases and skill levels.

Open Source Alternative to:

Power BI

Mem0

Give your AI apps persistent memory and intelligence

Stars
53,556
Forks
6,004
Last commit
11 hours ago

Universal memory layer for LLM applications that learns from user interactions, reduces token costs by 80%, and delivers personalized AI experiences.

Open Source Alternative to:

LangChain

Alacritty

High-performance terminal with GPU acceleration

Stars
63,548
Forks
3,421
Last commit
6 days ago

Modern cross-platform terminal emulator with OpenGL acceleration, extensive configuration options, and vi mode support for enhanced productivity.

Open Source Alternative to:

Warp

Coolify

Self-hosted cloud platform for effortless deployment

Stars
53,832
Forks
4,184
Last commit
12 hours ago

Open-source, self-hosted PaaS for seamless application deployment, database management, and service orchestration

Open Source Alternative to:

Vercel

Aider

AI-powered pair programming in your terminal

Stars
43,592
Forks
4,230
Last commit
11 days ago

A terminal-based coding assistant that helps you write, modify and understand code through natural language conversations with AI models

Open Source Alternative to:

Cursor

Jan

Your AI-powered local assistant for seamless productivity

Stars
41,922
Forks
2,781
Last commit
6 hours ago

A powerful, open-source AI chat interface that runs locally, offering privacy, customization, and seamless integration with your workflow.

Open Source Alternative to:

Grok

Hyperswitch

Open source payment orchestrator for global transactions

Stars
42,483
Forks
4,597
Last commit
6 hours ago

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

Open Source Alternative to:

Stripe Billing

ClickHouse

Lightning-fast analytics for massive datasets

Stars
46,966
Forks
8,316
Last commit
6 hours ago

High-performance columnar OLAP database system for real-time analytics on big data, with SQL support and linear scalability.

Open Source Alternative to:

Snowflake

Agno

Model-agnostic platform for building intelligent AI agents

Stars
39,531
Forks
5,270
Last commit
15 hours ago

Open-source platform that enables developers to create, deploy and monitor AI agents with built-in memory, knowledge integration, and external tool connectivity.

Open Source Alternative to:

Kiro

Milvus

High-performance vector database for GenAI applications

Stars
43,869
Forks
3,966
Last commit
9 hours ago

Open-source vector database optimized for similarity search, scaling to billions of vectors with minimal performance loss

Open Source Alternative to:

Supabase

AppSmith

Empower your team to build custom internal tools rapidly

Stars
39,653
Forks
4,549
Last commit
2 days ago

Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.

Open Source Alternative to:

Make

Continue

AI-powered code assistant for amplified development

Stars
32,661
Forks
4,396
Last commit
1 day ago

Open-source AI code assistant that connects models and context to build custom autocomplete and chat experiences inside your IDE.

Open Source Alternative to:

Cursor

TiDB

Scale-out SQL database for real-time analytics

Stars
39,983
Forks
6,165
Last commit
7 hours ago

Distributed SQL database combining OLTP and OLAP capabilities, offering horizontal scalability, high availability, and real-time analytics.

Open Source Alternative to:

Fauna

Void

Open source AI code editor with full privacy

Stars
28,608
Forks
2,437
Last commit
3 months ago

Void is an open-source alternative to Cursor, offering AI-powered coding features while maintaining full control over your data and privacy.

Open Source Alternative to:

Cursor

Insomnia

Powerful API development and testing made effortless

Stars
38,328
Forks
2,279
Last commit
3 days ago

Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms.

Open Source Alternative to:

Postman

Keycloak

Secure authentication and access control made simple

Stars
33,960
Forks
8,256
Last commit
11 hours ago

Comprehensive open source identity management solution offering single sign-on, social login, and fine-grained authorization for applications and services.

Open Source Alternative to:

Auth0

CasaOS

Your personal cloud OS for simple, elegant home servers

Stars
33,675
Forks
1,889
Last commit
9 months ago

CasaOS is an open-source personal cloud system that makes it easy to set up and manage your own home server

Open Source Alternative to:

Umbrel

Onlook

Visual React editor with real-time code updates

Stars
25,494
Forks
1,954
Last commit
24 days ago

Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.

Open Source Alternative to:

Webflow

Harness

End-to-end open source software delivery platform

Stars
34,988
Forks
3,019
Last commit
3 days ago

Streamline code delivery with an open-source CI/CD platform featuring Git integration, fast pipelines, and hosted development environments.

Open Source Alternative to:

GitHub

Qdrant

Fast, scalable vector database for AI applications

Stars
30,436
Forks
2,179
Last commit
12 hours ago

Qdrant is an open-source vector database that provides high-performance similarity search for AI and machine learning applications.

Open Source Alternative to:

Supabase

Reflex

Build full-stack web apps in Python without JavaScript

Stars
28,304
Forks
1,708
Last commit
2 days ago

Create complete web applications using pure Python code. Features AI-powered generation, built-in components, and one-click deployment with automatic scaling.

Open Source Alternative to:

Lovable

Chat2DB

Transform natural language into SQL queries with AI

Stars
25,426
Forks
2,787
Last commit
29 days ago

AI-powered SQL client that converts natural language to SQL queries. Supports MySQL, Redis, MongoDB with Text2SQL, BI dashboards, and secure database management.

Open Source Alternative to:

TablePlus

Chroma

Open-source vector database for AI search and retrieval

Stars
27,515
Forks
2,204
Last commit
1 day ago

Open-source vector database designed for AI applications. Store, search, and retrieve embeddings with semantic similarity matching and metadata filtering.

Open Source Alternative to:

Supabase

Ntfy

Simple, fast, and secure push notifications for all

Stars
29,807
Forks
1,239
Last commit
9 days ago

A lightweight, open-source solution for sending real-time notifications to your devices, with end-to-end encryption and no sign-up required.

Open Source Alternative to:

LogSnag

Roo Code

AI dev team in your VS Code editor

Stars
23,215
Forks
3,007
Last commit
15 hours ago

Open-source AI coding assistant with multi-file editing, agentic workflows, and model flexibility. Transform your VS Code into an intelligent development environment.

Open Source Alternative to:

Cursor

Jitsi

Private, secure video calls with no account needed

Stars
29,042
Forks
7,871
Last commit
24 hours ago

Host encrypted video conferences directly in your browser, deploy on your own servers, or integrate into applications - all with this powerful open source platform.

Open Source Alternative to:

Microsoft Teams

Zulip

Organized team chat for distributed teams

Stars
25,051
Forks
9,794
Last commit
1 day ago

Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.

Open Source Alternative to:

Microsoft Teams

InfluxDB

Purpose-built database for time series data management

Stars
31,442
Forks
3,705
Last commit
3 days ago

High-performance database optimized for collecting, storing, and analyzing time-stamped data in real-time across cloud, on-premises, or edge environments.

Open Source Alternative to:

MongoDB

Kestra

Orchestrate data workflows with ease and precision

Stars
26,720
Forks
2,553
Last commit
14 hours ago

A powerful, open-source orchestrator for building, running, and monitoring complex data pipelines and workflows

Open Source Alternative to:

n8n

Suna

AI agent that autonomously handles real-world tasks

Stars
19,640
Forks
3,388
Last commit
1 day ago

Open source AI assistant that executes complex tasks from market research to travel planning through natural conversation, with full transparency and community-driven development.

Open Source Alternative to:

Manus

Letta

Build and deploy AI agents with advanced memory

Stars
22,168
Forks
2,345
Last commit
8 days ago

Letta is an open-source platform for creating AI agents with built-in memory, reasoning, and support for thousands of tools.

Open Source Alternative to:

Perplexity

Graphite

Professional vector graphics with procedural design power

Stars
25,178
Forks
1,149
Last commit
1 day ago

Free open-source vector editor with nondestructive node-based workflow. Create graphics procedurally with infinite scalability. Runs in browser, exports SVG/PNG/JPG.

Open Source Alternative to:

Canva