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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All-in-one observability with unlimited data ingestion
Stars
1,728Last commit
5 hours agoLicense
AGPL-3.0
Unified platform for logs, metrics, traces and profiles with native compatibility for popular tools like OpenTelemetry, Prometheus, and Loki. No data silos, no usage limits.
Open Source Alternative to:
Open-source personal finance management tool
Stars
2,951Last commit
2 months agoLicense
GPL-3.0
Self-hosted alternative to Mint and YNAB for budgeting and building wealth while maintaining full control of your financial data.
Open Source Alternative to:
Open-source knowledge management and collaboration platform
Stars
1,333Last commit
5 hours agoLicense
LGPL-2.1
XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.
Open Source Alternative to:
AI chat companion with versatile model support
Stars
1,541Last commit
11 months agoLicense
Apache-2.0
Open-source chat application that lets you interact with multiple AI models in one interface, offering flexible conversations and diverse capabilities.
Open Source Alternative to:
Powerful open-source business intelligence for data-driven decisions
Stars
1,041Last commit
15 hours agoLicense
AGPL-3.0
Connect multiple data sources, build complex queries, create insightful visualizations, and organize powerful dashboards to make informed business decisions.
Open Source Alternative to:
Cookie-less analytics for privacy-focused insights
Stars
1,748Last commit
1 year agoLicense
Apache-2.0
Track user behavior, custom events, and conversion funnels in real-time with a single line of code, all while maintaining GDPR compliance.
Open Source Alternative to:
Open-source testing agent for UI, API, security, accessibility & visual QA
Stars
Stars growing over the last 30 days1,221Last commit
15 days agoLicense
AGPL-3.0
Hercules is the first open-source testing agent, enabling zero-code, zero-maintenance UI, API, security, accessibility, and visual validations.
Open Source Alternative to:
Handcrafted minimal bookmark manager with advanced tagging system
Stars
1,358Last commit
17 days agoLicense
MIT
A private, open-source bookmark manager for power users and large libraries, with a powerful, clutter-free UI.
Open Source Alternative to:
Unify APIs, databases, and services effortlessly
Stars
1,289Last commit
7 hours agoLicense
Apache-2.0
A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.
Open Source Alternative to:
GitOps orchestration for infrastructure as code
Stars
1,330Last commit
1 day agoLicense
MPL-2.0
Automate infrastructure changes with secure GitOps workflows. Plan, validate, and deploy Terraform, OpenTofu, and Pulumi directly from pull requests.
Open Source Alternative to:
Self-hosted AI agents and workflows across any channel
Stars
1,161Last commit
10 hours agoLicense
AGPL-3.0
Build and run AI agents, agentic workflows, and multichannel automation on your own infrastructure, with memory, RAG, MCP tools, and full data control.
Open Source Alternative to:
Self-hosted PaaS for rapid app and database deployment
Stars
1,393Last commit
7 hours agoLicense
MIT
Deploy apps, databases, and static sites in under 60 seconds. Self-hosted platform with Docker Swarm, free SSL, preview deployments, and zero downtime.
Open Source Alternative to:
Flexible billing infrastructure for modern SaaS
Stars
1,360Last commit
5 hours agoLicense
AGPL-3.0
Open-source pricing and billing platform that helps SaaS companies launch, test, and scale complex billing models with ease. Features metering, invoicing, and real-time data.
Open Source Alternative to:
Transform team email into efficient collaborative workflows
Stars
1,761Last commit
9 months agoLicense
AGPL-3.0
Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.
Open Source Alternative to:
Local-first notes app with no cloud, no AI, no tracking
Stars
1,369Last commit
2 days agoLicense
MIT
A privacy-focused, offline-first note-taking app that stores everything on your device, with Markdown, note linking, file attachments, LaTeX math, and bring-your-own sync.
Open Source Alternative to:
Fast, scalable analytics infrastructure
Stars
1,670Last commit
7 months agoLicense
MIT
Open source analytics platform built on ClickHouse and Kafka, offering high-speed event tracking and real-time querying capabilities.
Open Source Alternative to:
SQL-driven analytics dashboards for product embedding
Stars
1,278Last commit
10 hours agoLicense
MPL-2.0
Build interactive analytics dashboards with SQL and embed them directly into your product. Open-source platform with full data control and DuckDB flexibility.
Open Source Alternative to:
Open-source webhooks for seamless integrations
Stars
1,508Last commit
6 hours agoLicense
SSPL-1.0
Self-hosted webhook solution for effortless event-driven communication between applications, enhancing system interoperability and automation.
Open Source Alternative to:
Transform your source code into stunning visuals
Stars
1,847Last commit
10 months agoLicense
MIT
Create beautiful, customizable images of your source code with ease, perfect for presentations, documentation, and social media sharing.
Self-hosted uptime monitoring you own and control
Stars
1,220Last commit
5 days agoLicense
MIT
Open-source uptime monitoring solution with real-time alerts, status pages, and comprehensive checks for websites, APIs, databases, and services.
Open Source Alternative to:
Firefox fork hardened for privacy, security, and freedom
Stars
1,371Last commit
3 days agoLicense
Unknown
A Firefox-based browser that strips telemetry, blocks trackers, disables DRM, and ships with a content blocker out of the box.
Open Source Alternative to:
Clean, distraction-free note-taking with local storage
Stars
1,197Last commit
2 days agoLicense
AGPL-3.0
Minimal note-taking app storing Markdown notes in local SQLite database. Features instant search, flexible tagging, keyboard shortcuts, and offline access.
Open Source Alternative to:
Fast, local-first Git GUI built in Rust
Stars
Stars growing quickly over the last 30 days1,036Last commit
3 days agoLicense
AGPL-3.0
Open source Git GUI for Linux, macOS, and Windows, built in Rust for speed on large repositories with full diff, merge, and history tooling.
Open Source Alternative to:
Schedule posts to every major social network, self-hosted
Stars
Stars growing quickly over the last 30 days860Last commit
5 hours agoLicense
AGPL-3.0
Plan, schedule, and auto-publish social media content across 10+ networks with a visual calendar, AI captions, team approvals, and self-hosting support.
Open Source Alternative to:
Track TV shows and movies, synced with Trakt.tv
Stars
1,472Last commit
2 days agoLicense
GPL-3.0
Android and iOS app for tracking TV shows and movies, managing watchlists, and syncing viewing history with Trakt.tv across devices.
Open Source Alternative to:
Create, sell, and manage online courses with ease
Stars
1,299Last commit
9 hours agoLicense
AGPL-3.0
An open-source platform for building and selling online courses, featuring customizable themes, integrated payments, and user management.
Open Source Alternative to:
Open source CMS with powerful drag-and-drop builder
Stars
Stars growing over the last 30 days1,322Last commit
16 days agoLicense
AGPL-3.0
Vvveb is a feature-rich open source CMS for building websites, blogs, and ecommerce stores with an intuitive drag-and-drop interface.
Open Source Alternative to:
A verified workspace where AI agents store and build knowledge
Stars
Stars growing quickly over the last 30 days859Last commit
22 hours agoLicense
MIT
Busabase gives AI agents a shared database, knowledge base, and skills registry where every proposed change goes through human review before becoming canonical data.
Open Source Alternative to:
Own your SES email analytics, from send to inbox
Stars
945Last commit
17 hours agoLicense
Unknown
Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard with real-time search, analytics and reputation monitoring.
Open Source Alternative to:
Self-hosted CRM for business development teams
Stars
931Last commit
13 hours agoLicense
MIT
Pipeline management, deal workspace, contacts, and two-way Gmail for BD teams. Runs on your own infrastructure, MIT licensed, no per-seat fees.
Open Source Alternative to:
Open-source feedback management for product teams
Stars
1,137Last commit
6 hours agoLicense
Apache-2.0
Collect, organize, and prioritize user feedback to build better products. Self-hosted solution for seamless feature request management.
Open Source Alternative to:
AI-powered automation that lives in your Slack workspace
Stars
1,100Last commit
7 months agoLicense
Apache-2.0
Connect all your apps through Pearl, an AI assistant that automates workflows directly in Slack. No coding required - save 10+ hours weekly with intelligent task automation.
Open Source Alternative to:
Cookieless, privacy-first web analytics without the complexity
Stars
1,222Last commit
8 days agoLicense
AGPL-3.0
Privacy-first web analytics with real-time dashboards, session replays, error tracking, A/B testing, and GDPR compliance out of the box. No cookies, no consent banners.
Open Source Alternative to:
Transform your time tracking into actionable insights
Stars
934Last commit
10 days agoLicense
GPL-3.0
Advanced time tracking and productivity analytics tool that captures detailed work patterns, generates comprehensive reports, and helps optimize workflow efficiency.
Open Source Alternative to:
Save, organize and revisit web content effortlessly
Stars
Stars growing over the last 30 days1,199Last commit
2 days agoLicense
Unknown
Personal content hub for saving articles, videos, and images. Features highlighting, transcripts, e-book export, and smart organization tools.
Open Source Alternative to:
Self-hosted encrypted backups with 70+ cloud storage options
Stars
Stars growing over the last 30 days884Last commit
3 days agoLicense
Apache-2.0
Free, open-source backup solution with end-to-end encryption. Self-hosted control, supports 70+ cloud providers, automated incremental backups, and zero vendor lock-in.
Open Source Alternative to:
One self-hosted binary replaces Vercel, Sentry, and analytics tools
Stars
Stars growing over the last 30 days912Last commit
5 hours agoLicense
Apache-2.0
Self-hosted platform for small dev teams combining deployments, error tracking, analytics, session replay, uptime monitoring, and managed databases in one dashboard.
Open Source Alternative to:
Your secure French personal cloud for complete data control
Stars
1,267Last commit
9 hours agoLicense
AGPL-3.0
Open-source personal cloud that automatically gathers all your data from third-party services. French-hosted with privacy-first design, no ads, and seamless device sync.
Open Source Alternative to:
Lightning-fast React data grid for enterprise scale
Stars
1,028Last commit
3 months agoLicense
Unknown
High-performance React data table with server-side loading, tree data, pivoting, and advanced features. Handles billions of rows with minimal bundle size.
Flexible CMS for developers, powerful for clients
Stars
1,160Last commit
5 hours agoLicense
Unknown
A versatile, open-source content management system with a powerful API, modular architecture, and intuitive interface for seamless web development.
Open Source Alternative to:
Secure secret management with public key encryption
Stars
773Last commit
14 days agoLicense
MIT
Secure secret management platform with public key encryption, automated rotation, versioning, and real-time collaboration tools for development teams.
Open Source Alternative to:
Build AI agents and automate complex workflows seamlessly
Stars
Stars growing over the last 30 days1,061Last commit
5 hours agoLicense
Apache-2.0
Create intelligent automation workflows combining AI agents with your favorite apps and services. Connect, automate, and scale your operations without complex coding.
Open Source Alternative to:
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Postiz – The All-in-One agentic social media scheduling tool
Openlane
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