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.
Built withDirstarterOpenAlternative is supported by these incredible partners and sponsors. Advertise with us
Build beautiful documentation sites with Next.js
Stars
12,971Last commit
23 hours agoLicense
MIT
A flexible Next.js framework for creating stunning documentation sites with MDX support, built-in search, and customizable components.
Open Source Alternative to:
Professional status page system for transparent downtime communication
Stars
15,228Last commit
1 day agoLicense
Unknown
Open-source status page platform that helps organizations communicate system status and incidents effectively with customizable components and metrics tracking
Open Source Alternative to:
Create powerful chatbots without coding
Stars
10,285Last commit
20 hours agoLicense
Unknown
Design, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.
Open Source Alternative to:
Free, open-source framework for cross-platform game development
Stars
14,343Last commit
12 hours agoLicense
Unknown
Build games in C# that run on Windows, macOS, Linux, iOS, Android, and major consoles. No royalties, no subscriptions, no runtime fees.
Open Source Alternative to:
Complete production stack for AI teams
Stars
12,820Last commit
3 months agoLicense
MIT
Comprehensive AI platform with gateway, observability, guardrails, and prompt management. Access 1,600+ LLMs via unified API with enterprise-grade security.
Open Source Alternative to:
Build your own federated discussion community
Stars
14,566Last commit
7 days agoLicense
AGPL-3.0
Open-source forum and link aggregator that connects communities across the fediverse. Self-hosted, ad-free, with powerful moderation tools and federation.
Open Source Alternative to:
Open source messaging with privacy and community focus
Stars
10,130Last commit
9 hours agoLicense
AGPL-3.0
Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.
Open Source Alternative to:
Your all-in-one marketplace for digital creators and products
Stars
9,617Last commit
5 hours agoLicense
MIT
A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.
Open Source Alternative to:
Common layer for composing and governing AI agents
Stars
9,248Last commit
3 hours agoLicense
Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.
Open Source Alternative to:
Unified file management for your enterprise storage
Stars
14,543Last commit
5 hours agoLicense
AGPL-3.0
Filestash is an open-source file manager that integrates with multiple storage backends, authentication systems, and offers customization options.
Open Source Alternative to:
Self-hosted file sync with AI-powered organization
Stars
15,164Last commit
17 days agoLicense
Unknown
Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.
Open Source Alternative to:
AI-Powered Note Taking App
Stars
10,952Last commit
22 days agoLicense
GPL-3.0
The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.
Open Source Alternative to:
Visual database for workflow automation across apps
Stars
15,572Last commit
10 months agoLicense
AGPL-3.0
AITable.ai offers a visual database platform that simplifies workflow automation and connects to over 6,000 apps through integrations like Zapier and Make.
Open Source Alternative to:
A free, open source, cross-platform video editor
Stars
14,988Last commit
3 days agoLicense
GPL-3.0
Free, open-source video editor supporting 4K resolution, hundreds of formats, and professional features like Blackmagic Design integration across Windows, Mac, and Linux.
Open Source Alternative to:
AI-powered grammar checker for 30+ languages
Stars
14,865Last commit
3 hours agoLicense
LGPL-2.1
Check grammar, punctuation, and spelling errors instantly with AI-powered technology. Supports 30+ languages with browser extensions and desktop apps.
Open Source Alternative to:
Simple, speedy, and secure link shortener with analytics
Stars
7,048Last commit
5 days agoLicense
AGPL-3.0
A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.
Open Source Alternative to:
Visual editing for your Git-based content
Stars
13,753Last commit
3 hours agoLicense
Apache-2.0
A headless CMS that simplifies content management with real-time editing, Git-based workflows, and developer-friendly customization.
Open Source Alternative to:
Beautiful open-source monitoring for modern infrastructure
Stars
10,748Last commit
15 hours agoLicense
AGPL-3.0
Monitor servers, websites, Docker containers, and infrastructure with real-time insights, instant alerts, and powerful analytics. Self-hosted solution.
Open Source Alternative to:
Secure, decentralized messaging for teams and individuals
Stars
13,407Last commit
13 hours agoLicense
AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.
Open Source Alternative to:
A certified and battle-tested identity solution
Stars
13,846Last commit
27 days agoLicense
Apache-2.0
Ory is a certified and battle-tested identity solution backed by a large open source community and trusted by Fortune 500 companies.
Open Source Alternative to:
Self-hosted session replay with complete data control
Stars
12,565Last commit
20 hours agoLicense
AGPL-3.0
Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance.
Open Source Alternative to:
Open-source LLM tracing & evaluation for AI optimization
Stars
11,174Last commit
3 hours agoLicense
Elastic-2.0
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
Open Source Alternative to:
Self-hosted Kanban board with real-time collaboration
Stars
12,448Last commit
15 days agoLicense
Unknown
Self-hosted Kanban board for agile teams. Unlimited boards, real-time sync, GDPR-compliant, and available as a free Community Edition or paid Pro.
Open Source Alternative to:
Open-source integration platform for seamless workflows
Stars
13,943Last commit
6 months agoLicense
Unknown
Self-hosted automation tool that connects your apps and services, enabling powerful integrations and efficient data flow across your ecosystem.
Open Source Alternative to:
AI-powered answer engine with dynamic interface generation
Stars
9,060Last commit
3 hours agoLicense
Apache-2.0
Open-source answer engine that dynamically generates UI components while providing AI-powered responses, combining conversational AI with interactive interfaces.
Open Source Alternative to:
Effortless screen recording for macOS
Stars
19,334Last commit
2 years agoLicense
MIT
Capture, edit, and share your screen with ease. Create stunning GIFs and videos for tutorials, demos, and bug reports.
Open Source Alternative to:
Accelerate backend development with effortless scalability
Stars
12,301Last commit
18 hours agoLicense
MPL-2.0
A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding.
Open Source Alternative to:
Feature flags for rapid, risk-free software deployment
Stars
13,752Last commit
13 hours agoLicense
AGPL-3.0
A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.
Open Source Alternative to:
Private meeting notes, no bots, files you own
Stars
9,163Last commit
3 hours agoLicense
MIT
Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.
Open Source Alternative to:
Build product integrations with 500+ APIs in hours
Stars
11,581Last commit
3 hours agoLicense
Elastic-2.0
Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.
Open Source Alternative to:
AI-powered PIM for managing product catalogs at scale
Stars
10,854Last commit
3 hours agoLicense
MIT
Open source Product Information Management system with an AI agent for catalog enrichment, bulk updates, multilingual content, and omnichannel distribution.
Open Source Alternative to:
Flexible spreadsheets with database power
Stars
11,616Last commit
4 hours agoLicense
Apache-2.0
A versatile data management platform combining spreadsheet simplicity with relational database capabilities for efficient data organization and analysis.
Open Source Alternative to:
Realtime client-side database for collaborative apps
Stars
10,487Last commit
12 hours agoLicense
Apache-2.0
Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products.
Open Source Alternative to:
S3-based serverless Kafka reinvented for cost efficiency
Stars
10,556Last commit
4 days agoLicense
Apache-2.0
AutoMQ is a serverless Kafka alternative built on S3 that offers 10x cost savings, easy scalability, and full Kafka compatibility.
Open Source Alternative to:
Advanced automated status page for real-time monitoring
Stars
11,896Last commit
7 days agoLicense
Apache-2.0
A highly customizable monitoring solution that provides automated status pages, extensive alerting options, and detailed testing capabilities for your services and infrastructure
Open Source Alternative to:
Professional RAW photo editing and workflow management
Stars
12,986Last commit
8 hours agoLicense
GPL-3.0
Open source photography workflow application for RAW development. Non-destructive editing, professional color management, and GPU acceleration for photographers.
Open Source Alternative to:
High-performance distributed database for all workloads
Stars
10,256Last commit
8 hours agoLicense
Apache-2.0
Scalable, high-availability database system supporting OLTP, OLAP, and hybrid transactional/analytical processing workloads.
Open Source Alternative to:
The personal finance app for everyone
Stars
9,599Last commit
3 hours agoLicense
AGPL-3.0
An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.
Open Source Alternative to:
Lightning-fast search for massive datasets
Stars
11,543Last commit
11 hours agoLicense
Apache-2.0
High-performance search engine designed for big data, offering scalability, real-time indexing, and cost-effective operations.
Open Source Alternative to:
Free online accounting for small businesses and freelancers
Stars
10,090Last commit
10 hours agoLicense
Unknown
Self-hostable accounting software covering invoicing, expense tracking, cash flow, and client portals. Free to use, available in 50+ languages.
Open Source Alternative to:
Modern payment infrastructure for digital products and SaaS
Stars
10,212Last commit
11 hours agoLicense
Apache-2.0
Comprehensive payment solution with built-in tax handling, automated benefits, and seamless integrations for digital product and SaaS businesses.
Open Source Alternative to:
Open source marketing automation for everyone
Stars
10,385Last commit
11 hours agoLicense
Unknown
Mautic is a free and open source marketing automation platform that helps businesses manage leads, create campaigns, and analyze results.
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.
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Sent
Sent
Sevalla