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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Visual website builder and CMS you can self-host
Stars
279Last commit
4 hours agoLicense
MIT
Build, manage, and host custom websites with a visual drag-and-drop builder and CMS. Self-host free or use managed cloud hosting.
Open Source Alternative to:
Build and deploy AI agents through visual workflows
Stars
554Last commit
22 days agoLicense
Apache-2.0
Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.
Persistent cloud VMs that hibernate and wake in seconds
Stars
474Last commit
13 hours agoLicense
Apache-2.0
Provides always-on virtual machines for AI agents with full OS access, persistent state, elastic CPU/memory resizing, and instant checkpoints.
Open Source Alternative to:
Secure open source email with advanced encryption & AI
Stars
647Last commit
11 hours agoLicense
AGPL-3.0
Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.
Open Source Alternative to:
S3-compatible object storage built with Swift
Stars
514Last commit
5 days agoLicense
Apache-2.0
Self-hostable, Apache 2.0-licensed object storage with S3 compatibility, a built-in web console, and horizontal scaling from single node to sharded cluster.
Open Source Alternative to:
Track games, movies, anime, manga, and books in one place
Stars
513Last commit
4 days agoLicense
MIT
Cross-platform collection manager for retro games, movies, TV shows, anime, manga, visual novels, and books with tier lists, visual boards, and import/export.
Open Source Alternative to:
Messaging SDK with AI agents for web, iOS, and Android
Stars
542Last commit
7 hours agoLicense
Apache-2.0
Build branded chat apps with AI agents, group messaging, document exchange, and digital wallets using React and React Native components.
Open Source Alternative to:
Open source company management for high-performance startups
Stars
544Last commit
2 hours agoLicense
Apache-2.0
Operately is an open source platform that centralizes projects, goals, and processes, helping startups run efficiently without a COO.
Open Source Alternative to:
Real-time work and project management platform
Stars
544Last commit
1 day agoLicense
AGPL-3.0
Ever Teams offers an all-in-one solution for work management, time tracking, and team collaboration with integrations for popular tools.
Open Source Alternative to:
Open-source AI browser for intelligent web automation
Stars
499Last commit
5 months agoLicense
BSD-3-Clause
Privacy-focused AI browser with intelligent agents for research, analysis, and workflow automation. Features unified memory, compliance guardrails, and seamless integrations.
Open Source Alternative to:
Open-source CMS for text-driven websites
Stars
614Last commit
1 day agoLicense
MIT
Create manuals, documentation, and websites with this markdown-based content management system, with options for ebook conversion.
Open Source Alternative to:
Visual regression testing for seamless UI development
Stars
615Last commit
2 hours agoLicense
MIT
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.
Open Source Alternative to:
Craft AAA web apps that delight your users
Stars
487Last commit
8 hours agoLicense
Apache-2.0
Visual web development engine combining design and development tools. Build immersive, interactive web experiences with component-based framework, real-time collaboration, and powerful visual editor.
Open Source Alternative to:
Federated short videos without corporate control
Stars
443Last commit
10 hours agoLicense
AGPL-3.0
Open-source, decentralized short-video platform that gives creators control. No ads, no lock-in, built on ActivityPub for true community ownership.
Open Source Alternative to:
Open-source GraphQL federation platform
Stars
485Last commit
7 hours agoLicense
MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs
Open Source Alternative to:
Open source financial infrastructure for modern businesses
Stars
518Last commit
5 days agoLicense
MIT
Build custom financial flows and integrate with any provider using Formance's agnostic platform
Open Source Alternative to:
Inspect, debug, and replay BullMQ queues visually
Stars
433Last commit
3 months agoLicense
MIT
Desktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.
Open Source Alternative to:
Self-hosted media processing with full control
Stars
382Last commit
5 days agoLicense
AGPL-3.0
Open-source alternative to Cloudinary offering self-hosted media transformation. Works with S3/R2/MinIO. Upload, transform, and deliver images/videos without vendor lock-in.
Open Source Alternative to:
Simplify project management for developers
Stars
451Last commit
7 days agoLicense
Apache-2.0
Shelve is a comprehensive project management tool designed to streamline workflows and enhance collaboration for developers and teams.
Open Source Alternative to:
Real-time event tracking and response for tech products
Stars
476Last commit
29 days agoLicense
AGPL-3.0
Track critical events, receive instant notifications, and respond to product activities with customizable webhooks and action buttons
Open Source Alternative to:
AI governance made simple, secure, and compliant
Stars
340Last commit
19 hours agoLicense
AGPL-3.0
Open-source AI governance platform helping teams meet regulatory standards like EU AI Act and ISO 42001. Monitor model performance, manage risks, and maintain compliance with enterprise-grade security.
Open Source Alternative to:
Web3 writing platform for content creators and crypto enthusiasts
Stars
490Last commit
2 days agoLicense
MIT
Sigle is a secure, open-source platform for Web3 writers to create, publish, and monetize content on the Bitcoin blockchain.
Open Source Alternative to:
Simple, powerful web & product analytics for user insights
Stars
382Last commit
4 days agoLicense
AGPL-3.0
Privacy-focused analytics platform combining web and product insights. Track user journeys, create funnels, and understand behavior with GDPR compliance and no cookies by default.
Open Source Alternative to:
Simple content management for modern sites
Stars
381Last commit
2 days agoLicense
AGPL-3.0
A headless CMS designed for blogs, changelogs, and articles. Features intuitive editor, team collaboration, media management, and API integration.
Open Source Alternative to:
Unified API, event, and AI agent management platform
Stars
444Last commit
2 hours agoLicense
Apache-2.0
Full-lifecycle API management platform that unifies synchronous and asynchronous ecosystems. Manage APIs, event streams, and AI agents with enterprise security and 4x faster gateway performance.
Open Source Alternative to:
Fast, secure, and privacy-focused web browsing
Stars
385Last commit
20 hours agoLicense
MPL-2.0
Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.
Open Source Alternative to:
End-to-end encrypted collaborative document editor
Stars
398Last commit
6 hours agoLicense
AGPL-3.0
Write, organize, and collaborate in real-time with complete privacy and security. This app is an open-source, online/offline compatible, and AI-free alternative to Google Docs.
Open Source Alternative to:
Open-source ideation tool for product feedback management
Stars
448Last commit
19 days agoLicense
Apache-2.0
ClearFlask is an open-source platform for collecting, analyzing, and acting on customer feedback to drive product development.
Open Source Alternative to:
Create stunning forms with AI-powered builder and analytics
Stars
356Last commit
3 months agoLicense
MIT
Build beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and seamless integrations.
Open Source Alternative to:
Professional link management for modern teams
Stars
338Last commit
5 months agoLicense
AGPL-3.0
Open-source platform for creating shortened URLs with advanced analytics, custom domains, and API integration for marketing and development teams.
Open Source Alternative to:
Track coding time across 70+ editors, completely free
Stars
189Last commit
3 hours agoLicense
MIT
Free, open-source coding time tracker compatible with VS Code, JetBrains IDEs, vim, emacs and more. No limits, no paywalls - your data stays yours forever.
Open Source Alternative to:
Community-driven platform built for transparency
Stars
393Last commit
3 days agoLicense
AGPL-3.0
Open-source communication platform with multi-window chat, economy systems, and privacy-first approach. Built by communities for superior performance.
Open Source Alternative to:
Experiment tracking platform for ML teams
Stars
392Last commit
6 months agoLicense
Apache-2.0
Open source ML experiment tracking platform with parameter and gradient logging, media tracking, real-time alerts, and full Weights & Biases API compatibility.
Open Source Alternative to:
Connect APIs, databases, and streams without glue code
Stars
360Last commit
2 months agoLicense
Unknown
Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.
Open Source Alternative to:
Seamless data import for your applications
Stars
290Last commit
2 months agoLicense
MIT
Open-source solution for effortless data importing, mapping, and validation in web applications
Deploy web apps with automated CI/CD and full infrastructure control
Stars
255Last commit
9 hours agoLicense
GPL-3.0
Self-hosted platform for web applications offering automated CI/CD pipelines, multiple environments, and Git integration - with 47% infrastructure cost savings.
Open Source Alternative to:
Build lasting communities with modern forum technology
Stars
330Last commit
24 hours agoLicense
MPL-2.0
Create permanent, discoverable communities with modern forum features. Combines discussion, curation, and wiki functionality in one platform.
Open Source Alternative to:
Organize, discover, and personalize your bookmarks
Stars
326Last commit
4 months agoLicense
AGPL-3.0
Open-source bookmark manager with timeline view, one-click saving, categorization, and sharing features. Free plan available with pro upgrades.
Open Source Alternative to:
Distraction-free note-taking with powerful features
Stars
310Last commit
18 hours agoLicense
AGPL-3.0
A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.
Open Source Alternative to:
Effortless changelog creation for open-source projects
Stars
284Last commit
4 days agoLicense
AGPL-3.0
Automate and simplify changelog generation from Git commits, ensuring clear and consistent project documentation.
Open Source Alternative to:
OTA updates for Capacitor apps without app store delays
Stars
205Last commit
2 hours agoLicense
AGPL-3.0
Live update platform for Ionic and Capacitor apps that pushes JavaScript, CSS, and asset changes to devices in minutes, with channels, rollback, and release analytics.
Open Source Alternative to:
Your unified cloud storage solution
Stars
371Last commit
10 months agoLicense
AGPL-3.0
Firefiles is an open-source alternative to Dropbox that lets you manage files across multiple cloud storage providers through a single interface.
Open Source Alternative to:
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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.
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Access millions of songs, podcasts, and playlists instantly with personalized recommendations and offline listening across all your devices.
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