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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Flexible database meets intuitive spreadsheet interface
Stars
21,710Last commit
2 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
25,924Last commit
12 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:
A native code editor for macOS
Stars
22,996Last commit
6 days 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:
Privacy-first browser with ad-blocking and no bloat
Stars
19,849Last commit
13 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:
Lightning-fast, typo-tolerant search engine for all
Stars
26,478Last commit
7 days agoLicense
GPL-3.0
Open-source search solution offering blazing speed, typo tolerance, and effortless scalability for developers and businesses.
Open Source Alternative to:
Revolutionize your Git workflow with simultaneous branches
Stars
21,564Last commit
3 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:
Infrastructure as code in your favorite language
Stars
25,605Last commit
2 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:
Petabyte-scale observability, without the massive bill.
Stars
21,448Last commit
2 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:
Python-native workflow orchestration for data and ML teams
Stars
23,672Last commit
7 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:
Self-hosted newsletter and mailing list manager
Stars
23,101Last commit
3 days 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:
Modern and intuitive SQL client for multiple databases
Stars
23,507Last commit
8 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:
Cross-platform terminal with AI built in
Stars
22,102Last commit
14 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:
Build resilient applications with durable execution workflows
Stars
22,509Last commit
2 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:
Watch YouTube without Google tracking you or showing ads
Stars
22,759Last commit
1 day 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:
Self-hosted personal finance manager with double-entry bookkeeping
Stars
24,414Last commit
17 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:
Open-source crypto trading bot for market making
Stars
19,591Last commit
3 days 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:
Fast, private browser that puts you first
Stars
23,435Last commit
3 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
20,510Last commit
6 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:
Fast, secure, offline API client with Git integration
Stars
19,115Last commit
3 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
23,406Last commit
15 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:
Build AI agents and RPA workflows without writing code
Stars
21,580Last commit
6 months agoLicense
Unknown
No-code platform for building AI agents and RPA workflows that automate repetitive business tasks across finance, HR, sales, and operations.
Open Source Alternative to:
Self-hosted music streaming for your personal collection
Stars
23,099Last commit
7 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:
Run coding agents from your phone, desktop, or terminal
Stars
14,952Last commit
6 hours agoLicense
AGPL-3.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.
Open Source Alternative to:
Social media reimagined for community and connection
Stars
18,236Last commit
5 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:
Serverless Postgres for modern applications
Stars
22,948Last commit
3 months agoLicense
Apache-2.0
Cloud-native, auto-scaling Postgres with instant branching, bottomless storage, and pay-per-use pricing
Open Source Alternative to:
Legally binding document signing for individuals and teams
Stars
18,372Last commit
8 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:
Unify data models and metrics across your entire stack
Stars
20,692Last commit
5 hours agoLicense
Unknown
Cube is a universal semantic layer that connects data sources to analytics tools, providing consistent definitions and fast queries.
Open Source Alternative to:
No-code web scraping, crawling, and extraction platform
Stars
17,280Last commit
14 hours 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:
Task manager built for deep work, privacy, and focus
Stars
21,573Last commit
16 hours agoLicense
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:
Collaborative bookmark manager for teams and individuals
Stars
19,590Last commit
5 days agoLicense
AGPL-3.0
Open-source platform to collect, organize, and preserve webpages with powerful collaboration features
Open Source Alternative to:
Visual project management with complete data control
Stars
21,064Last commit
6 hours agoLicense
MIT
Open-source Kanban board solution offering visual task management, self-hosting capabilities, and robust security features for teams and individuals.
Open Source Alternative to:
Free, private screen recording for Chrome
Stars
18,504Last commit
7 days agoLicense
GPL-3.0
Capture, annotate, and edit screen recordings with no limits or sign-up required. Completely private and open source.
Open Source Alternative to:
Empower your digital strategy with actionable insights
Stars
21,802Last commit
2 hours agoLicense
GPL-3.0
Comprehensive web analytics platform offering full data ownership, privacy protection, and customizable insights for data-driven decision making.
Open Source Alternative to:
Desktop multi-agent workforce for automating real tasks
Stars
15,097Last commit
4 hours agoLicense
Apache-2.0
Self-hostable desktop app that runs a coordinated team of AI agents to browse the web, manage files, execute terminal commands, and complete complex workflows.
Open Source Alternative to:
Privacy-first knowledge base with any AI model you choose
Stars
16,005Last commit
11 hours agoLicense
Apache-2.0
Self-hostable NotebookLM alternative that lets teams build searchable knowledge bases from diverse sources, with support for any LLM and no data limits.
Open Source Alternative to:
Scalable open-source distributed storage system
Stars
16,961Last commit
6 hours agoLicense
Unknown
Ceph provides unified object, block, and file storage from a single cluster built on commodity hardware.
Open Source Alternative to:
Create, edit and share documents with real-time collaboration
Stars
16,751Last commit
11 hours agoLicense
MIT
Transform document collaboration with real-time editing, version control, and secure sharing features that enhance team productivity and communication.
Open Source Alternative to:
Open-source workflow automation for developers
Stars
17,670Last commit
7 hours agoLicense
Unknown
Powerful, self-hosted platform for building and running workflows, scripts, and apps with code-first approach and collaborative features.
Open Source Alternative to:
Secure, open-source document signing for everyone
Stars
14,734Last commit
2 hours agoLicense
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:
Secure password management for individuals and businesses
Stars
19,927Last commit
3 hours agoLicense
Unknown
Bitwarden is an open source password manager that securely stores, shares, and autofills passwords across unlimited devices.
Open Source Alternative to:
Open-source mail server with unlimited sending & AI tools
Stars
15,446Last commit
3 months agoLicense
AGPL-3.0
Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution.
Open Source Alternative to:
Run dozens of AI coding agents in parallel on your machine
Stars
13,324Last commit
2 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:
People are looking for alternatives to...
View all alternatives
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.
14 alternatives
Spotify
Access millions of songs, podcasts, and playlists instantly with personalized recommendations and offline listening across all your devices.
2 alternatives
Notion
An all-in-one workspace for note-taking, project management, knowledge sharing, and collaboration across teams.
20 alternatives
Lovable
Create fully functional applications by describing your idea, with AI-powered code generation and beautiful design
3 alternatives
Wispr Flow
Flow transforms complex workflows into intelligent automation using AI-powered visual builders that connect your apps and data seamlessly.
7 alternatives
Discord
A free voice, video, and text chat app for gamers and non-gamers alike. Chat, hang out, and stay close with your friends and communities.
11 alternatives
Trending categories
View all categoriesVoice Dictation Tools
Applications that convert spoken words into text for faster writing across any application.
AI 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.
ERP Systems
Enterprise Resource Planning systems integrating various business functions.
AI Coding Agents
Tools that take a task or issue and carry it to completion on their own: planning, editing files, running tests, and opening pull requests.
Scraping Platforms & SDKs
Platforms and SDKs for building web scraping solutions.
Subscription & Billing Management Tools
Platforms for managing recurring subscriptions and complex billing models.
Openlane – Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
Openlane
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Sevalla