Find the best open-source alternatives to popular software.

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.

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

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

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

Open-source ETL framework built in Rust for AI workloads. Features incremental processing, data lineage, and observability tools for semantic search and RAG applications.

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

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

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

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

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.

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

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

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

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 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.

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

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

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

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

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

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

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

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

Complete self-hosting solution with automated maintenance, Smart-Shield protection, anti-DDoS, SSO authentication, and VPN access for secure private cloud management.

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

Open-source authorization service for implementing fine-grained access controls. Centralized, scalable solution supporting RBAC, ABAC and ReBAC with Google Zanzibar-inspired architecture.