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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Cross-platform, secure password manager
Stars
29,115Last commit
7 days agoLicense
GPL-3.0
KeePassXC is an open-source password manager that securely stores and manages sensitive information across Windows, macOS, and Linux.
Open Source Alternative to:
Take control of your identity with a secure, flexible solution
Stars
25,870Last commit
4 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:
AI workforce platform where agents, skills, and memory live in your repo
Stars
20,256Last commit
4 hours agoLicense
Elastic-2.0
Manages a team of AI agents across your company, with every agent, skill, memory, and connector stored as versioned files in a git repo you own and self-host.
Open Source Alternative to:
Zero trust network access that's better than VPN
Stars
23,019Last commit
11 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:
Open-source data integration for modern teams
Stars
22,183Last commit
6 hours 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:
Self-hosted wiki with AI, compliance, and real-time editing
Stars
21,888Last commit
2 days 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:
Agentic AI framework that runs, learns, and self-corrects
Stars
19,384Last commit
19 hours agoLicense
MIT
Autonomous AI agent framework that operates on its own sandboxed computer, creates tools dynamically, manages memory, and executes multi-step workflows with full transparency.
Open Source Alternative to:
Privacy-first browser with ad-blocking and no bloat
Stars
21,291Last commit
14 hours agoLicense
GPL-3.0
Chromium-based desktop browser with default ad and tracker blocking, no analytics, native !bangs, split view, and full MV2 extension support.
Open Source Alternative to:
Flexible database meets intuitive spreadsheet interface
Stars
21,862Last commit
9 hours agoLicense
AGPL-3.0
Open-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.
Open Source Alternative to:
Create 2D and 3D games without coding, powered by AI assistance
Stars
27,204Last commit
14 hours agoLicense
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:
AI agents that autonomously fix code and resolve GitHub issues
Stars
20,496Last commit
1 day 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:
Watch YouTube without Google tracking you or showing ads
Stars
25,146Last commit
5 days agoLicense
AGPL-3.0
Open source front-end for YouTube that strips out ads, tracking, and algorithmic distractions while letting you subscribe to channels and manage playlists.
Open Source Alternative to:
AI-powered DevSecOps for faster, secure software delivery
Stars
24,555Last commit
6 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:
Self-hosted CRM for enhanced business relationships
Stars
23,980Last commit
6 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
23,417Last commit
6 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:
Petabyte-scale observability, without the massive bill.
Stars
22,284Last commit
4 hours agoLicense
AGPL-3.0
Monitor logs, metrics, and traces with an open-source observability platform. Achieve petabyte scale with 140x lower storage costs and high performance.
Open Source Alternative to:
Self-hosted newsletter and mailing list manager
Stars
23,709Last commit
18 hours agoLicense
AGPL-3.0
Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres.
Open Source Alternative to:
Lightning-fast, typo-tolerant search engine for all
Stars
26,637Last commit
23 hours agoLicense
GPL-3.0
Open-source search solution offering blazing speed, typo tolerance, and effortless scalability for developers and businesses.
Open Source Alternative to:
Build resilient applications with durable execution workflows
Stars
23,510Last commit
7 hours agoLicense
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:
Revolutionize your Git workflow with simultaneous branches
Stars
21,784Last commit
4 hours agoLicense
FSL-1.1-MIT
GitButler is a powerful Git client that enables seamless work on multiple branches concurrently, enhancing your existing workflow.
Open Source Alternative to:
Python-native workflow orchestration for data and ML teams
Stars
23,982Last commit
13 hours agoLicense
Apache-2.0
Orchestrate data pipelines, ML jobs, and agent workflows in plain Python with automatic retries, scheduling, and a unified UI for every run across your infrastructure.
Open Source Alternative to:
Infrastructure as code in your favorite language
Stars
25,767Last commit
4 hours agoLicense
Apache-2.0
Pulumi enables developers to define and manage cloud infrastructure using familiar programming languages instead of domain-specific languages.
Open Source Alternative to:
Cross-platform terminal with AI built in
Stars
22,433Last commit
2 days agoLicense
Apache-2.0
Enhance your terminal with AI, file previews, and web browsing. Available on MacOS, Linux, and Windows.
Open Source Alternative to:
Chromium browser built for sharing with AI agents
Stars
16,876Last commit
14 days agoLicense
MIT
A Chromium-based browser that lets AI agents like Claude Code and Codex run web automation using your real logged-in sessions, without interrupting your browsing.
Open Source Alternative to:
Open-source crypto trading bot for market making
Stars
20,326Last commit
1 day agoLicense
Apache-2.0
Automate crypto trading strategies with a powerful, customizable platform. Connect to multiple exchanges and optimize your market making.
Open Source Alternative to:
Modern and intuitive SQL client for multiple databases
Stars
23,707Last commit
14 hours agoLicense
Unknown
A user-friendly SQL editor and database manager supporting MySQL, PostgreSQL, SQLite, SQL Server and more with full feature parity across operating systems.
Open Source Alternative to:
A native code editor for macOS
Stars
23,062Last commit
2 months agoLicense
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:
Self-hosted personal finance manager with double-entry bookkeeping
Stars
24,840Last commit
7 hours agoLicense
AGPL-3.0
Track transactions, budgets, and accounts with a double-entry system, multi-currency support, rule engine, and REST API. Fully self-hostable.
Open Source Alternative to:
Full-featured media center for your TV and beyond
Stars
21,286Last commit
6 hours agoLicense
Unknown
Plays videos, music, TV shows, photos, and games from a single interface, with live TV, PVR recording, and broad format support across devices.
Open Source Alternative to:
Serverless Postgres for modern applications
Stars
23,175Last commit
1 month agoLicense
Apache-2.0
Cloud-native, auto-scaling Postgres with instant branching, bottomless storage, and pay-per-use pricing
Open Source Alternative to:
Collect, transform, and route logs and metrics in one tool
Stars
22,672Last commit
13 hours agoLicense
MPL-2.0
Rust-built observability pipeline tool that collects, transforms, and routes logs and metrics across 47 sources and 62 sinks with no runtime dependencies.
Open Source Alternative to:
Fast, private browser that puts you first
Stars
23,821Last commit
8 hours agoLicense
MPL-2.0
A secure web browser that blocks ads and trackers, protects privacy, and loads pages faster while saving data and battery life.
Open Source Alternative to:
Full-stack platform for voice, video, and physical AI agents
Stars
21,311Last commit
22 hours agoLicense
Apache-2.0
Build, test, deploy, and scale voice and video AI agents with an open source framework, inference gateway, telephony integrations, and full observability.
Open Source Alternative to:
Self-hosted music streaming for your personal collection
Stars
24,008Last commit
13 hours agoLicense
GPL-3.0
Open source music server that streams your personal library via a web player or any Subsonic-compatible mobile app on iOS and Android.
Open Source Alternative to:
Turn production traffic into regression tests, no code changes
Stars
18,539Last commit
4 hours agoLicense
Apache-2.0
Captures real API traffic and dependency calls via eBPF to generate tests and mocks automatically, then replays them in CI to catch regressions before they ship.
Open Source Alternative to:
Fast, secure, offline API client with Git integration
Stars
19,294Last commit
7 hours agoLicense
MIT
A modern API client offering local-only data storage, Git integration, plugin extensibility, and multi-protocol support for developers.
Open Source Alternative to:
Time-series database built on top of PostgreSQL
Stars
23,654Last commit
4 hours agoLicense
Unknown
PostgreSQL extension for time-series data with automatic partitioning, up to 95% columnar compression, continuous aggregates, and ~200 native SQL functions.
Open Source Alternative to:
Task manager with time tracking, focus mode, and deep work tools
Stars
22,592Last commit
16 hours agoLicense
MIT
Privacy-first task manager combining task lists, Kanban, Pomodoro timers, time tracking, and integrations with GitHub, GitLab, and Jira. No account required, works offline.
Open Source Alternative to:
Legally binding document signing for individuals and teams
Stars
18,663Last commit
2 days agoLicense
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:
Social media reimagined for community and connection
Stars
18,327Last commit
4 hours agoLicense
MIT
A decentralized social network focused on fostering meaningful interactions and giving users control over their data and experience.
Open Source Alternative to:
No-code web scraping, crawling, and extraction platform
Stars
17,685Last commit
5 days agoLicense
AGPL-3.0
Turn any website into structured data using a visual recorder, natural language prompts, or API. Includes proxy rotation, scheduling, and webhook integrations.
Open Source Alternative to:
Run dozens of AI coding agents in parallel on your machine
Stars
14,950Last commit
4 hours agoLicense
Elastic-2.0
macOS app that orchestrates multiple AI coding agents simultaneously, each in its own isolated Git worktree, so you can work on many tasks at once.
Open Source Alternative to:
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Claude Code
An agentic coding tool that runs in your terminal, reads your codebase, and executes tasks like writing features, fixing bugs, and running tests using natural language instructions.
18 alternatives
Spotify
Access millions of songs, podcasts, and playlists instantly with personalized recommendations and offline listening across all your devices.
2 alternatives
CapCut
Free video editing app that lets you create professional-quality videos with advanced editing tools, effects, and templates for social media and beyond.
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Claude
A next generation AI assistant built for work and trained to be safe, accurate, and secure.
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An all-in-one workspace for note-taking, project management, knowledge sharing, and collaboration across teams.
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Lovable
Create fully functional applications by describing your idea, with AI-powered code generation and beautiful design
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Trending categories
View all categoriesAI Coding Agent Orchestrators
Tools that run and coordinate multiple AI coding agents in parallel across isolated git worktrees, also known as agent harnesses or agentic dev environments.
CRM Systems
Customer relationship management systems for tracking contacts, deals, and pipelines, with activity history and sales reporting.
Subscription & Billing Management Tools
Platforms for managing recurring subscriptions and complex billing models.
Cloud Cost & Optimization Tools
Tools for analyzing and optimizing cloud spending.
Voice Dictation Tools
Applications that convert spoken words into text for faster writing across any application.
ERP Systems
Enterprise Resource Planning systems integrating various business functions.
Windshift – The self-hosted platform that replaces Jira.
Windshift
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Openlane