Open Source Alternatives to Popular Software
Over 1 million users replaced their proprietary tools with open source software. Discover the best alternatives and join the movement.
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Secure, private photo storage and sharing solution
Stars
28,486Last commit
1 hour agoLicense
AGPL-3.0
End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.
Open Source Alternative to:
Visual React editor with real-time code updates
Stars
26,557Last commit
6 hours agoLicense
Apache-2.0
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:
GPU-accelerated terminal built for power users
Stars
34,587Last commit
2 hours agoLicense
GPL-3.0
High-performance terminal emulator with GPU acceleration, graphics support, and advanced scripting capabilities for developers and system administrators.
Open Source Alternative to:
Local-first envelope budgeting with full data ownership
Stars
28,361Last commit
9 hours agoLicense
MIT
Privacy-focused personal finance app using envelope budgeting, multi-device sync, optional end-to-end encryption, and bank sync for US, EU, and UK users.
Open Source Alternative to:
Secure secret management for modern development teams
Stars
28,934Last commit
2 hours agoLicense
MIT
End-to-end encrypted secret management platform for seamless integration and enhanced security in development workflows.
Open Source Alternative to:
Purpose-built time series database for real-time systems
Stars
31,714Last commit
4 days agoLicense
Apache-2.0
InfluxDB handles high-velocity, high-resolution time series data at scale, built for telemetry, edge devices, IoT, and physical AI workloads.
Open Source Alternative to:
Organized team chat for distributed teams
Stars
25,769Last commit
2 hours agoLicense
Apache-2.0
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:
Branded short links with analytics and conversion tracking
Stars
24,560Last commit
6 hours agoLicense
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:
Your personal cloud OS for simple, elegant home servers
Stars
37,125Last commit
1 year agoLicense
Apache-2.0
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:
High-performance object storage designed for AI workloads
Stars
61,379Last commit
4 months agoLicense
AGPL-3.0
Open source S3-compatible object storage optimized for cloud-native and AI applications, delivering unmatched performance and scalability
Open Source Alternative to:
Build and deploy AI agents with advanced memory
Stars
24,420Last commit
1 day agoLicense
Apache-2.0
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:
AI assistant that enhances enterprise knowledge management
Stars
22,597Last commit
2 hours agoLicense
GPL-3.0
Open-source AI solution combining RAG pipelines, workflow automation, and multi-model support for intelligent enterprise knowledge management and customer service.
Declarative workflow orchestration for data, AI, and infra
Stars
27,915Last commit
12 hours agoLicense
Apache-2.0
YAML-based orchestration platform with 1400+ plugins for running data pipelines, AI workflows, and infrastructure automation across teams at scale.
Open Source Alternative to:
Private messaging with end-to-end encryption
Stars
29,253Last commit
3 days agoLicense
AGPL-3.0
Secure messaging app with state-of-the-art encryption, voice/video calls, group chats, and file sharing. No ads, trackers, or data collection.
Open Source Alternative to:
Automate workflows with no-code integration platform
Stars
24,027Last commit
1 hour agoLicense
MIT
Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.
Open Source Alternative to:
Zero Trust networking with WireGuard-based secure connectivity
Stars
28,637Last commit
4 hours agoLicense
Unknown
Open source platform combining WireGuard overlay networks with Zero Trust access controls. Features SSO, MFA, device posture checks, and granular policies for secure remote connectivity.
Open Source Alternative to:
Open source Laravel eCommerce platform for modern businesses
Stars
27,988Last commit
19 hours agoLicense
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 unlimited AI apps locally with zero vendor lock-in
Stars
21,314Last commit
7 hours agoLicense
Apache-2.0
Create full-stack AI applications using any model or tool. Run entirely on your machine with complete privacy, flexibility, and control over your code.
Open Source Alternative to:
Self-hosted mini-PaaS for deploying applications easily
Stars
32,110Last commit
17 hours agoLicense
MIT
A Docker-powered platform that lets you deploy Heroku-compatible applications via Git, with buildpack support and container isolation.
Open Source Alternative to:
All-in-one workspace for project, chat, and docs
Stars
27,441Last commit
14 days agoLicense
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:
Create, customize, and manage your website with ease
Stars
21,363Last commit
8 hours agoLicense
Unknown
A versatile, user-friendly platform for building and managing websites, from simple blogs to complex e-commerce stores.
Open Source Alternative to:
Decentralized social networking for the Web3 era
Stars
29,383Last commit
3 months agoLicense
GPL-3.0
A blockchain-powered social platform offering censorship-resistant content sharing, user-owned data, and innovative monetization options.
Open Source Alternative to:
Privacy-focused, lightweight web analytics
Stars
28,738Last commit
2 hours agoLicense
AGPL-3.0
Simple, open-source web analytics tool that respects user privacy and provides valuable insights without compromising data protection.
Open Source Alternative to:
AI agent that autonomously handles real-world tasks
Stars
20,138Last commit
5 hours agoLicense
Apache-2.0
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:
Connect, query, visualize, and share your data
Stars
28,764Last commit
7 days agoLicense
BSD-2-Clause
Redash is an open-source data visualization and analytics platform that helps teams make sense of their data through SQL queries and interactive dashboards.
Open Source Alternative to:
Build powerful web apps without complex coding
Stars
28,243Last commit
11 hours agoLicense
Unknown
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.
Open Source Alternative to:
Time-series database and historian for industrial data
Stars
25,083Last commit
9 hours agoLicense
AGPL-3.0
High-performance time-series database with industrial data management, built-in stream analytics, and AI-driven anomaly detection for operational environments.
Open Source Alternative to:
Automate any website workflow with AI and computer vision
Stars
22,842Last commit
7 hours agoLicense
AGPL-3.0
Transform manual browser tasks into automated workflows using AI. Handle complex forms, CAPTCHAs, 2FA, and data extraction across any website at scale.
Open Source Alternative to:
Zero trust network access that's better than VPN
Stars
22,462Last commit
5 hours agoLicense
AGPL-3.0
Deploy zero trust access to infrastructure, self-hosted apps, and SaaS tools in days. Identity-aware security with seamless user experience.
Open Source Alternative to:
GPU-accelerated terminal emulator with multiplexing across all platforms
Stars
28,536Last commit
1 day agoLicense
MIT
Cross-platform terminal emulator and multiplexer with GPU acceleration, true color support, and Lua configuration. Runs on Linux, macOS, Windows, FreeBSD, and NetBSD.
Open Source Alternative to:
Local-first, Git-native personal knowledge base with AI
Stars
19,577Last commit
22 hours agoLicense
AGPL-3.0
A free, open source note-taking app built on plain Markdown files, Git version control, and direct AI model integration. No account required.
Open Source Alternative to:
Procedural vector editor that runs in your browser, no signup needed
Stars
26,924Last commit
10 hours agoLicense
Apache-2.0
A free, open source vector graphics editor built around nondestructive, node-based design. Runs locally in the browser, exports SVG, PNG, and JPG.
Open Source Alternative to:
Cross-platform, secure password manager
Stars
28,529Last commit
14 hours agoLicense
Unknown
KeePassXC is an open-source password manager that securely stores and manages sensitive information across Windows, macOS, and Linux.
Open Source Alternative to:
Build custom apps without code, deploy with ease
Stars
23,827Last commit
5 hours agoLicense
Unknown
Open-source no-code platform for creating tailored business applications quickly, with full customization and easy deployment options.
Open Source Alternative to:
24/7 screen and audio recorder with AI memory search
Stars
21,208Last commit
5 hours agoLicense
MIT
Records your screen and microphone locally, transcribes meetings automatically, and lets you query your entire work history with AI or automate workflows through app integrations.
Open Source Alternative to:
Open-source data integration for modern teams
Stars
21,950Last commit
1 hour agoLicense
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:
Take control of your identity with a secure, flexible solution
Stars
25,132Last commit
2 hours agoLicense
MIT
authentik is an open-source identity provider that offers self-hosted authentication, authorization, and user management for businesses of all sizes.
Open Source Alternative to:
Self-hosted wiki with AI, compliance, and real-time editing
Stars
21,457Last commit
3 hours agoLicense
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:
AI-powered DevSecOps for faster, secure software delivery
Stars
24,536Last commit
4 hours agoLicense
MIT
A comprehensive AI-powered DevSecOps platform that integrates development, security, and operations, streamlining software delivery and enhancing productivity.
Open Source Alternative to:
AI agents that autonomously fix code and resolve GitHub issues
Stars
20,124Last commit
9 hours agoLicense
MIT
State-of-the-art AI agent that uses language models like GPT-4o to autonomously solve GitHub issues, fix bugs, and implement features with configurable YAML setup.
Open Source Alternative to:
Self-hosted CRM for enhanced business relationships
Stars
23,710Last commit
17 hours agoLicense
MIT
Open source customer relationship management platform with sales tracking, marketing automation, and customizable workflows for businesses of all sizes.
Open Source Alternative to:
Flexible e-commerce platform for modern businesses
Stars
23,265Last commit
18 hours agoLicense
BSD-3-Clause
Headless, API-first e-commerce solution with powerful features for customization, scalability, and seamless integration across channels.
Open Source Alternative to:
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Openlane – Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
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