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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Local meeting recorder that keeps your audio off the cloud
Stars
1,470Last commit
1 day agoLicense
MIT
Records meetings and voice memos locally using whisper.cpp, writes structured markdown to disk, and exposes 31 MCP tools so any AI agent can query your conversation history.
Open Source Alternative to:
Collaborative content creation for technical teams
Stars
1,996Last commit
16 hours agoLicense
AGPL-3.0
A powerful platform for technical writing, offering real-time collaboration, version control, and seamless integrations.
Open Source Alternative to:
Build APIs like code with Git-native workspace
Stars
1,682Last commit
7 hours agoLicense
Apache-2.0
Offline-first API workspace that unifies specs, docs, tests, and mocks in programmable Markdown blocks. Version control everything in plain text files.
Open Source Alternative to:
Open-source message stream built on Postgres
Stars
2,198Last commit
7 months agoLicense
MIT
Sequin offers a feature-rich messaging system with a simple HTTP API, providing RabbitMQ-like functionality without adding complexity to your stack.
Open Source Alternative to:
Chat with private and local large language models
Stars
2,265Last commit
1 year agoLicense
MIT
A mobile app for interacting with private, local large language models that work offline and are optimized for Apple silicon.
Open Source Alternative to:
Serverless GPU compute with sub-second cold starts
Stars
1,766Last commit
10 hours agoLicense
AGPL-3.0
Run GPU inference, task queues, and sandboxes on serverless infrastructure with sub-second cold starts, autoscaling, and support for your own AWS, GCP, or bare metal.
Open Source Alternative to:
Unified API for all LLM providers with analytics
Stars
1,615Last commit
7 hours agoLicense
MIT
Route, manage, and analyze LLM requests across multiple providers with one API. Compatible with OpenAI format, includes usage analytics and performance monitoring.
Open Source Alternative to:
Enterprise file sync, share, and collaboration platform
Stars
2,114Last commit
7 hours agoLicense
Apache-2.0
Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.
Open Source Alternative to:
Open source CI/CD platform that's faster and costs less
Stars
1,597Last commit
9 hours agoLicense
Unknown
Continuous integration and delivery platform offering faster builds, lower costs, and maintenance-free operations. Cut build times dramatically while reducing CI/CD expenses by 50%.
Open Source Alternative to:
Track your TV shows and movies on Android
Stars
2,150Last commit
4 days agoLicense
Unknown
Android app for tracking TV shows and movies you're watching, have watched, or plan to watch, powered by TMDb data.
Open Source Alternative to:
Encrypted, queryable backups for engineers who value time
Stars
2,052Last commit
1 day agoLicense
ISC
Backup solution with CLI, API and UI interfaces. Clean defaults, easy deployment. Encrypted, queryable backups with deduplication and compression.
Open Source Alternative to:
Open-source feature flag management for seamless deployments
Stars
1,906Last commit
1 day agoLicense
MIT
FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.
Open Source Alternative to:
Type 10x faster with AI-powered voice dictation
Stars
1,524Last commit
3 days agoLicense
MIT
Open source AI dictation app that transforms speech to text with context-aware formatting. Fast, accurate transcription for meetings, notes, and hands-free typing.
Open Source Alternative to:
Complete infrastructure monitoring with 25+ years of expertise
Stars
2,041Last commit
1 month agoLicense
GPL-2.0
Free open source IT monitoring solution for servers, networks, and applications. Trusted by 1M+ users worldwide with powerful alerting and enterprise-grade features.
Open Source Alternative to:
Security framework that protects from within your product
Stars
1,507Last commit
25 days agoLicense
AGPL-3.0
Open-source security framework for threat detection, fraud prevention, and abuse monitoring. Self-hosted solution with built-in dashboard and risk scoring.
Open Source Alternative to:
Transform any song into karaoke with AI-powered vocals
Stars
1,450Last commit
3 days agoLicense
GPL-3.0
AI-powered karaoke software that separates vocals from any song, transcribes lyrics with word-level sync, scores your pitch in real-time, and includes dynamic backgrounds.
Open Source Alternative to:
Managed identity and access management for any app
Stars
2,031Last commit
16 hours agoLicense
Apache-2.0
Authgear is a managed IAM platform handling authentication, SSO, and user management for B2C and B2B apps, with biometrics, MFA, and zero-trust support.
Open Source Alternative to:
Simplify container deployment across environments
Stars
1,845Last commit
7 days agoLicense
Apache-2.0
Effortless container orchestration platform for seamless deployment, management, and monitoring of applications across multiple environments.
Open Source Alternative to:
Create custom spaces to chat, game, and connect globally
Stars
1,727Last commit
8 hours agoLicense
MIT
Build your own community space for gaming, chatting, and hanging out with friends worldwide. Customize your environment for the perfect social experience.
Open Source Alternative to:
Privacy-first analytics for mobile and desktop apps
Stars
1,795Last commit
26 days agoLicense
AGPL-3.0
Open-source, self-hostable analytics platform for mobile and desktop apps, prioritizing user privacy and data control.
Open Source Alternative to:
Secure password manager with end-to-end encryption
Stars
2,920Last commit
1 year agoLicense
AGPL-3.0
Open-source password manager with end-to-end encryption for passwords, credit cards, notes, and documents. Cross-platform sync with secure sharing capabilities.
Open Source Alternative to:
Privacy-first proof-of-work CAPTCHA without user friction
Stars
2,488Last commit
11 months agoLicense
AGPL-3.0
Privacy-focused proof-of-work CAPTCHA system that silently protects websites without tracking users or requiring image solving. Drop-in replacement for reCAPTCHA.
Open Source Alternative to:
Cross-system automation and knowledge base for accounting firms
Stars
1,722Last commit
4 months agoLicense
Unknown
Connects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.
Secure collaboration platform with end-to-end encryption
Stars
2,546Last commit
8 months agoLicense
GPL-3.0
A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compliance features.
Open Source Alternative to:
AI code review that learns your team's standards
Stars
1,359Last commit
19 hours agoLicense
AGPL-3.0
Open source AI code reviewer that analyzes pull requests for quality, security, and performance while respecting your existing rules and model preferences.
Open Source Alternative to:
Parallel AI agent workspaces with Git and project context
Stars
1,261Last commit
9 hours agoLicense
Apache-2.0
Run multiple AI coding agents in isolated Git worktrees, with cross-repo context, GitHub/Linear integrations, and support for Claude, Codex, Cursor, and more.
Open Source Alternative to:
AI-powered PostgreSQL management made simple
Stars
1,436Last commit
3 days agoLicense
AGPL-3.0
Modern PostgreSQL database management with AI-powered filtering, natural language queries, and cloud sync. Focus on your data while AI handles complexity.
Open Source Alternative to:
The modern GraphQL runtime
Stars
1,443Last commit
12 days agoLicense
Apache-2.0
Swiftly design and ship best-practice GraphQL backends atop existing data sources and APIs.
Open Source Alternative to:
Self-hosted AI agents and workflows across any channel
Stars
1,216Last commit
15 days 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:
Effortlessly split expenses with friends and groups
Stars
1,428Last commit
23 days agoLicense
MIT
Free, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.
Open Source Alternative to:
Fast, scalable analytics infrastructure
Stars
1,663Last commit
5 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:
Self-hosted email marketing with unlimited everything
Stars
2,168Last commit
2 years agoLicense
MIT
Open-source email marketing platform offering unlimited subscribers, campaigns, and workspaces. Self-hosted solution with powerful API and beautiful interface.
Open Source Alternative to:
All-in-one observability with unlimited data ingestion
Stars
1,703Last commit
16 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:
Unlock Data's Potential with Open Source Power
Stars
1,394Last commit
2 days agoLicense
Apache-2.0
Leverage advanced analytics with a modern PostgreSQL kernel. 100% open source for robust data solutions.
Open Source Alternative to:
AI chat companion with versatile model support
Stars
1,531Last commit
9 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:
Local-first 2FA authenticator and password manager
Stars
1,506Last commit
2 days agoLicense
GPL-3.0
Open-source authenticator and password manager that stores 2FA tokens and passwords locally on your device, with zero-knowledge encryption and no account required.
Open Source Alternative to:
Cloud-native framework for infrastructure from code
Stars
2,016Last commit
7 months agoLicense
Apache-2.0
Nitric automates cloud infrastructure provisioning from your application code for AWS, GCP and Azure
Open Source Alternative to:
Cookie-less analytics for privacy-focused insights
Stars
1,741Last commit
9 months 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:
Privacy-first analytics without cookies or tracking
Stars
1,146Last commit
15 hours agoLicense
AGPL-3.0
Get powerful web analytics with zero cookies, 100% GDPR compliance, and full data ownership. Lightweight 3KB script delivers real-time insights without compromising user privacy.
Open Source Alternative to:
Open-source knowledge management and collaboration platform
Stars
1,306Last commit
13 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:
GitOps orchestration for infrastructure as code
Stars
1,281Last commit
19 hours 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:
Secure self-hosted cloud storage with end-to-end encryption
Stars
1,468Last commit
10 days agoLicense
Unknown
Lightweight, self-hosted cloud storage built with Rust and Vue.js. Features end-to-end encryption, file sharing, search capabilities, and Docker deployment.
Open Source Alternative to:
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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.
Voice Dictation Tools
Applications that convert spoken words into text for faster writing across any application.
Scraping Platforms & SDKs
Platforms and SDKs for building web scraping solutions.
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.
AI Gateways
Platforms that route and secure API access to multiple AI models through one unified interface, with authentication, rate limiting, and usage monitoring.
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Tools for scheduling and managing posts on social media networks.
Capture – Capture screenshots, generate PDFs, scrape content, extract metadata, and automate browsers with one API.
Capture
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