Find the best open-source alternatives to popular software.

FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.

A managed authentication platform that helps developers implement secure user identity features like SSO, MFA, and social login without complex infrastructure.

Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.

Bugsink offers real-time error tracking with self-hosting capabilities, allowing easy installation and connection to any app using Sentry-compatible SDKs.

Track user behavior, custom events, and conversion funnels in real-time with a single line of code, all while maintaining GDPR compliance.

Build payment systems with real-time billing state and full-stack SDK. Design pricing in natural language, deploy checkout and metering instantly with zero webhooks.

Open source consent management framework for modern web apps. Framework-agnostic, fully customizable, and performance-first with no vendor lock-in.

Open-source, self-hostable analytics platform for mobile and desktop apps, prioritizing user privacy and data control.

Modern analytics system featuring user-friendly interface, native integrations, and unlimited scalability. Build, visualize, and share data insights across your organization.

Automate subscriptions and manage payments with a flexible, open-source billing system designed specifically for hosting providers.

Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.

Self-hosted health intelligence platform with open algorithms, AI reasoning engine, and zero per-user fees. Connect Apple Health, Whoop, Garmin, Oura, and more.

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.

Run AI workloads with sub-second cold starts, elastic GPU scaling, and secure sandboxed environments. Scale to zero when idle, burst to thousands instantly.

Open source analytics platform built on ClickHouse and Kafka, offering high-speed event tracking and real-time querying capabilities.

Create and sell online courses with rich content blocks, AI tools, payments, and full white-labeling. Open-source platform with self-hosting options.

Open source gateway built on Envoy for routing application traffic to GenAI services. Supports 16+ LLM providers including OpenAI, Anthropic, AWS Bedrock.

Offline navigation app for hiking, biking, and driving. No tracking, no data collection, community-driven maps. Works without internet connection.

Automate compliance with AI agents and 500+ integrations. Get audit-ready in days with continuous evidence collection, policy generation, and real-time monitoring.

Open source LMS designed for companies and training organizations. Create, manage, and deliver courses with AI support, customizable dashboards, and collaborative features.

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 chat application that lets you interact with multiple AI models in one interface, offering flexible conversations and diverse capabilities.

Swiftly design and ship best-practice GraphQL backends atop existing data sources and APIs.

Self-hosted webhook solution for effortless event-driven communication between applications, enhancing system interoperability and automation.

Modern PostgreSQL database management with AI-powered filtering, natural language queries, and cloud sync. Focus on your data while AI handles complexity.

Transform customer relationships with this intuitive open-source CRM. Features task management, sales pipeline tracking, and customizable data models.

Open-source security framework for threat detection, fraud prevention, and abuse monitoring. Self-hosted solution with built-in dashboard and risk scoring.

Open-source personal cloud that automatically gathers all your data from third-party services. French-hosted with privacy-first design, no ads, and seamless device sync.

XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.

Free, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.