Find the best open-source alternatives to popular software.

Free open source IT monitoring solution for servers, networks, and applications. Trusted by 1M+ users worldwide with powerful alerting and enterprise-grade features.

Kanri is a free, open-source personal Kanban app that works offline, offering a modern and simple experience while respecting your privacy.

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

Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

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

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

Effortless container orchestration platform for seamless deployment, management, and monitoring of applications across multiple environments.

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

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

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.

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.

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

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

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.

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

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

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

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

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

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.

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

Route, manage, and analyze LLM requests across multiple providers with one API. Compatible with OpenAI format, includes usage analytics and performance monitoring.

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

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

Open source AI dictation app that transforms speech to text with context-aware formatting. Fast, accurate transcription for meetings, notes, and hands-free typing.

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

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