Find the best open-source alternatives to popular software.

A versatile, open-source tool for organizing thoughts, notes, and data with customizable objects and relational structures.

A simple, privacy-first analytics platform that provides valuable website insights without compromising visitor data or requiring cookie consent banners.

A powerful, scalable platform for building custom websites and apps with serverless architecture, offering flexibility and cost-efficiency.

Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.

Track issues, ideas, and projects with a modern kanban board that's fast and straightforward. Free for 1000 cards, then $20/month for unlimited use.

Coroot simplifies system monitoring by providing metrics, logs, traces, and profiling with zero instrumentation, leveraging eBPF technology.

Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.

Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.

Wealthfolio is a simple, secure desktop app for tracking investments and managing your wealth without compromising data privacy.

Durable orchestration platform for managing AI agents, scheduling background tasks, and running mission-critical workflows.

Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open-source observability platform for LLMs using OpenTelemetry. Monitor performance, track costs, and debug AI applications with just 2 lines of code.

Open-source browser API designed for AI agents. Run headless browsers with built-in CAPTCHA solving, proxy support, and session management. Quick setup in under 1s.

Non-intrusive, lightweight AI coding assistant that integrates seamlessly with your terminal workflow. Get intelligent code suggestions without leaving your command line.

All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Decentralized photo sharing platform with chronological feeds, privacy controls, and ActivityPub federation. No ads, no algorithms, just authentic connections.

Build web apps, internal tools, and customer portals fast with visual editing, drag-and-drop design, and seamless codebase integration. Deploy anywhere without limits.

A low-code platform for creating robust backends, complete with a spreadsheet UI for easy data management and custom functions.

Lightweight open-source CAPTCHA solution using SHA-256 proof-of-work. 250x smaller than hCaptcha, fully customizable, and privacy-focused with zero telemetry.

Stack Auth provides secure authentication, authorization, and user management for developers in just 5 minutes.

A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.

A powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.

Cross-platform note-taking app with end-to-end encryption, offline access, and powerful organization features for privacy-conscious users.

Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.

CloudQuery is an open-source ELT platform that enables easy data integration from hundreds of cloud and security tools to any destination.

Create data-driven websites and reports using SQL and Markdown, with automatic visualizations and interactive elements.

Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.

Free, open-source image editor with professional tools for photo manipulation, digital art creation, and graphic design. Cross-platform support.

Open source password manager focused on security, collaboration and privacy for organizations