Find the best open-source alternatives to popular software.

Create, collaborate, and brainstorm instantly with this free virtual whiteboard. No signup needed. Works seamlessly on mobile, tablet, and desktop devices.

Manage authentication, load balancing, and cost tracking across 100+ LLMs through a single OpenAI-compatible gateway. Trusted by Netflix and enterprise teams.

Open-source CRM platform for efficient customer data management, collaboration, and relationship nurturing

Open-source chat solution offering real-time messaging, video calls, and file sharing for teams of all sizes.

Powerful AI assistant supporting iOS, macOS, and Windows. Switch between multiple LLM models seamlessly with local data storage and personalized knowledge base.

A terminal-based coding assistant that helps you write, modify and understand code through natural language conversations with AI models

Open-source vector database optimized for similarity search, scaling to billions of vectors with minimal performance loss

Detect, diagnose, and resolve software issues quickly with powerful error tracking, performance monitoring, and release management.

A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.

SiYuan is a personal knowledge management system that prioritizes privacy, supports Markdown, and offers block-level referencing and bidirectional linking.

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

A privacy-first, open-source platform for networked thought. Organize, connect, and discover your ideas with ease.

A powerful, open-source AI chat interface that runs locally, offering privacy, customization, and seamless integration with your workflow.

An open-source scheduling platform that simplifies appointment booking, integrates seamlessly, and enhances team collaboration.

A powerful, flexible, and developer-friendly content management system that prioritizes customization and scalability.

A Firefox-based browser offering enhanced privacy, split views, and extensive customization options for a personalized browsing experience.

Puter is a privacy-focused personal cloud platform that securely stores your files, apps, and games, accessible from anywhere.

Fast lossless video and audio editor that trims, cuts, and merges files instantly without re-encoding. Save hours of processing time while maintaining perfect quality.

A powerful open-source solution for managing, organizing, and searching your digital documents with ease and efficiency.

Distributed SQL database combining OLTP and OLAP capabilities, offering horizontal scalability, high availability, and real-time analytics.

Open-source platform that enables developers to create, deploy and monitor AI agents with built-in memory, knowledge integration, and external tool connectivity.

Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.

A powerful, open-source notification infrastructure for developers to manage and send multi-channel notifications with ease.

Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms.

Secure, fast, and beautiful wiki platform that scales with your team, integrating seamlessly with your existing tools.

A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.

Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface

Free online database diagram editor with SQL generation. Create ER diagrams, visualize relationships, export scripts, and reverse engineer schemas - no signup required.

Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.

ShareX is a free, open-source program that captures or records any area of your screen and shares it with a single keypress, supporting various file types and destinations.