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Open Source Projects tagged "Open Source"

A curated collection of the best open source projects tagged "Open Source". Each listing includes a website screenshot along with a detailed review of its features.

Favicon of Postiz

Postiz

Schedule, analyze, and manage 30+ social media accounts

  • Stars

    34,869

  • Last commit

    7 hours ago

  • License

    AGPL-3.0
Self-hostable social media scheduler that lets you plan, generate, and publish content across 30+ networks with AI assistance, team collaboration, and automation integrations.

Open Source Alternative to:

Favicon of Buffer
Buffer
Favicon of Dub Partners

Dub Partners

Affiliate marketing platform built for SaaS companies

  • Stars

    24,531

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Run affiliate, influencer, and referral programs with flexible reward structures, real-time attribution, and automated global payouts.

Open Source Alternative to:

Favicon of Affonso
Affonso
Favicon of Cap

Cap

Open source screen recorder with editing and instant sharing

  • Stars

    21,003

  • Last commit

    7 hours ago

  • License

    AGPL-3.0
Record your screen or webcam, edit with backgrounds and effects, then share via link. Built on Rust and Tauri for native performance on macOS and Windows.

Open Source Alternative to:

Favicon of Screen Studio
Screen Studio
Favicon of OpenPanel

OpenPanel

Cookie-free web and product analytics, self-hostable

  • Stars

    6,704

  • Last commit

    13 hours ago

  • License

    AGPL-3.0
Open-source analytics platform covering web traffic, custom events, funnels, retention, session replay, and revenue tracking. GDPR-compliant with optional self-hosting.

Open Source Alternative to:

Favicon of Google Analytics
Google Analytics
Favicon of Openlane

Openlane

Continuous compliance automation for SOC 2, ISO 27001 & more

  • Stars

    291

  • Last commit

    10 hours ago

  • License

    Apache-2.0
Automates evidence collection, control tracking, and audit reporting across SOC 2, ISO 27001, NIST 800-53, GDPR, and 12+ other frameworks in one platform.

Open Source Alternative to:

Favicon of Vanta
Vanta
Favicon of Godot

Godot

Free 2D and 3D game engine for cross-platform projects

  • Stars

    115,878

  • Last commit

    6 hours ago

  • License

    MIT
Build 2D, 3D, and XR games with a full-featured engine that includes its own scripting language, scene editor, and export tools for multiple platforms.

Open Source Alternative to:

Favicon of Unity
Unity
Favicon of Twenty

Twenty

Build a custom CRM without the proprietary lock-in

  • Stars

    55,134

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Self-hostable CRM built for technical teams who need a fully customizable, extensible platform without vendor lock-in or proprietary tooling.

Open Source Alternative to:

Favicon of Attio
Attio
Favicon of Cal.com

Cal.com

Self-host your own scheduling page, no vendor required

  • Stars

    47,804

  • Last commit

    11 days ago

  • License

    MIT
Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

Open Source Alternative to:

Favicon of Calendly
Calendly
Favicon of Puter

Puter

A full desktop environment that runs in your browser

  • Stars

    43,106

  • Last commit

    7 hours ago

  • License

    AGPL-3.0
Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of Hyperswitch

Hyperswitch

Open source payment orchestrator for global transactions

  • Stars

    43,503

  • Last commit

    6 hours ago

  • License

    Apache-2.0
A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

Open Source Alternative to:

Favicon of Stripe Billing
Stripe Billing
Favicon of Jan

Jan

AI
Run AI models locally or connect to cloud, privately

  • Stars

    44,052

  • Last commit

    10 hours ago

  • License

    Apache-2.0
Jan runs open-source AI models on your own hardware or connects to cloud providers like OpenAI, Anthropic, and Google, keeping your conversations off third-party servers.

Open Source Alternative to:

Favicon of Claude
Claude
Favicon of Payload

Payload

Headless CMS for developers, built with Node.js

  • Stars

    44,267

  • Last commit

    6 hours ago

  • License

    MIT
A powerful, flexible, and developer-friendly content management system that prioritizes customization and scalability.

Open Source Alternative to:

Favicon of WordPress
WordPress
Favicon of CopilotKit

CopilotKit

AI
Build AI copilots for your product in hours, not months

  • Stars

    36,849

  • Last commit

    5 hours ago

  • License

    MIT
Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

Open Source Alternative to:

Favicon of LangChain
LangChain
Favicon of Continue

Continue

AI
Open-source coding agent for your IDE and terminal

  • Stars

    35,545

  • Last commit

    17 hours ago

  • License

    Apache-2.0
Runs source-controlled AI checks on every pull request, enforcing your engineering standards as native GitHub status checks with suggested fixes.

Open Source Alternative to:

Favicon of CodeRabbit
CodeRabbit
Favicon of Langfuse

Langfuse

AI
Open source LLM engineering platform for AI-powered applications

  • Stars

    33,392

  • Last commit

    5 hours ago

  • License

    MIT
Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.

Open Source Alternative to:

Favicon of LangSmith
LangSmith
Favicon of Spacedrive

Spacedrive

Your personal distributed filesystem

  • Stars

    38,794

  • Last commit

    22 days ago

  • License

    AGPL-3.0
A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of Nextcloud

Nextcloud

Secure cloud collaboration platform for organizations

  • Stars

    36,479

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of SigNoz

SigNoz

Open-source observability platform for cloud-native apps

  • Stars

    31,881

  • Last commit

    5 hours ago

  • License

    MIT
Comprehensive monitoring and troubleshooting solution for microservices architectures, offering metrics, traces, and logs in a single pane.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Reflex

Reflex

Full-stack Python platform for web apps and internal tools

  • Stars

    28,833

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Build, iterate, and deploy full-stack web apps entirely in Python. Reflex combines an AI app builder, a full-stack framework, and one-click deployment in one platform.

Open Source Alternative to:

Favicon of Lovable
Lovable
Favicon of Infisical

Infisical

Secure secret management for modern development teams

  • Stars

    28,846

  • 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:

Favicon of Keeper
Keeper
Favicon of Dub Links

Dub Links

Branded short links with analytics and conversion tracking

  • Stars

    24,531

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Link management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.

Open Source Alternative to:

Favicon of TinyURL
TinyURL
Favicon of Bagisto

Bagisto

Open source Laravel eCommerce platform for modern businesses

  • Stars

    27,981

  • Last commit

    12 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:

Favicon of Shopify
Shopify
Favicon of Budibase

Budibase

Build powerful web apps without complex coding

  • Stars

    28,221

  • Last commit

    5 hours ago

  • License

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

Open Source Alternative to:

Favicon of Power Apps
Power Apps
Favicon of Docmost

Docmost

Self-hosted wiki with AI, compliance, and real-time editing

  • Stars

    21,418

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Self-hosted wiki platform for enterprise teams with real-time collaboration, built-in AI, SSO, RBAC permissions, and compliance support for ITAR, FedRAMP, and GDPR.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of CodeEdit

CodeEdit

A native code editor for macOS

  • Stars

    22,985

  • Last commit

    1 day ago

  • License

    MIT
A lightweight, natively built editor. Open source and free forever. Develop any project using any language at speeds like never before.

Open Source Alternative to:

Favicon of Cursor
Cursor
Favicon of GDevelop

GDevelop

Create 2D and 3D games without coding, powered by AI assistance

  • Stars

    25,786

  • Last commit

    5 hours ago

  • License

    Unknown
Free, open-source game engine with visual event system, AI tutor, and one-click publishing to Steam, iOS, Android, and web platforms.

Open Source Alternative to:

Favicon of Unity
Unity
Favicon of Docuseal

Docuseal

Legally binding document signing for individuals and teams

  • Stars

    18,305

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Self-hostable e-signature platform for creating, sending, and signing PDF forms with automatic digital signatures, a REST API, and embeddable components.

Open Source Alternative to:

Favicon of DocuSign
DocuSign
Favicon of Super Productivity

Super Productivity

Task manager built for deep work, privacy, and focus

  • Stars

    21,454

  • Last commit

    2 days ago

  • License

    MIT
Combines task management, time tracking, Pomodoro focus sessions, and GitHub/Jira integration in a local-first app for Windows, macOS, Linux, Android, and iOS.

Open Source Alternative to:

Favicon of Monday
Monday
Favicon of Windmill

Windmill

Open-source workflow automation for developers

  • Stars

    17,582

  • Last commit

    6 hours ago

  • License

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

Open Source Alternative to:

Favicon of Make
Make
Favicon of Documenso

Documenso

Secure, open-source document signing for everyone

  • Stars

    14,615

  • Last commit

    7 hours ago

  • License

    AGPL-3.0
Streamline your document workflows with a powerful, privacy-focused e-signature platform that puts you in control of your data.

Open Source Alternative to:

Favicon of DocuSign
DocuSign
Favicon of Spree Commerce

Spree Commerce

Open source headless commerce with REST API, no platform fees, built for B2B and marketplaces

  • Stars

    15,631

  • Last commit

    6 hours ago

  • License

    BSD-3-Clause
Headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront. Handle B2B, multi-vendor marketplaces, and cross-border commerce. Self-hosted, open source, zero fees.

Open Source Alternative to:

Favicon of Shopify
Shopify
Favicon of Formbricks

Formbricks

Privacy-first survey and experience management platform

  • Stars

    12,794

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Collect feedback across websites, apps, and emails with targeted surveys, user segmentation, and GDPR-compliant data handling. Self-host or use the cloud.

Open Source Alternative to:

Favicon of Google Forms
Google Forms
Favicon of Notesnook

Notesnook

Zero-knowledge encrypted notes that sync across all devices

  • Stars

    14,440

  • Last commit

    13 hours ago

  • License

    GPL-3.0
End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of MonoGame

MonoGame

Free, open-source framework for cross-platform game development

  • Stars

    14,321

  • Last commit

    7 hours ago

  • License

    Unknown
Build games in C# that run on Windows, macOS, Linux, iOS, Android, and major consoles. No royalties, no subscriptions, no runtime fees.

Open Source Alternative to:

Favicon of Unity
Unity
Favicon of Automatisch

Automatisch

Open-source integration platform for seamless workflows

  • Stars

    13,936

  • Last commit

    6 months ago

  • License

    Unknown
Self-hosted automation tool that connects your apps and services, enabling powerful integrations and efficient data flow across your ecosystem.

Open Source Alternative to:

Favicon of n8n
n8n
Favicon of Kap

Kap

Effortless screen recording for macOS

  • Stars

    19,331

  • Last commit

    2 years ago

  • License

    MIT
Capture, edit, and share your screen with ease. Create stunning GIFs and videos for tutorials, demos, and bug reports.

Open Source Alternative to:

Favicon of Screen Studio
Screen Studio
Favicon of Anarlog

Anarlog

AI
Private meeting notes, no bots, files you own

  • Stars

    9,088

  • Last commit

    5 hours ago

  • License

    MIT
Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.

Open Source Alternative to:

Favicon of Granola
Granola
Favicon of UnoPim

UnoPim

AI-powered PIM for managing product catalogs at scale

  • Stars

    10,849

  • 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:

Favicon of Akeneo
Akeneo
Favicon of Quickwit

Quickwit

Lightning-fast search for massive datasets

  • Stars

    11,522

  • Last commit

    5 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:

Favicon of ElasticSearch
ElasticSearch
Favicon of Mautic

Mautic

Open source marketing automation for everyone

  • Stars

    10,370

  • Last commit

    10 hours ago

  • License

    Unknown
Mautic is a free and open source marketing automation platform that helps businesses manage leads, create campaigns, and analyze results.

Open Source Alternative to:

Favicon of Mailchimp
Mailchimp
Favicon of Papermark

Papermark

Open-source document sharing with powerful analytics

  • Stars

    8,954

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.

Open Source Alternative to:

Favicon of PandaDoc
PandaDoc
Favicon of OpenPencil

OpenPencil

Design editor that opens Figma files, runs AI, and stays local

  • Stars

    7,873

  • Last commit

    5 hours ago

  • License

    MIT
A Figma-compatible design editor with built-in AI chat, headless CLI, real-time P2P collaboration, and a Vue SDK for building custom editors. No account needed.

Open Source Alternative to:

Favicon of Figma
Figma
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