Kai A. Hartung

Kai A. Hartung

Apache Superset

Apache Superset

A modern, enterprise-ready business intelligence web application that rivals proprietary tools like Tableau and PowerBI, offering advanced data exploration and visualization capabilities at scale.

Medusa

Medusa

An open-source, headless commerce platform built for developers. Medusa provides the foundational building blocks for custom digital commerce experiences, offering a modular alternative to Shopify Plus.

Infisical

Infisical

The open-source secret management platform for developers. A modern, developer-friendly alternative to HashiCorp Vault, providing end-to-end encrypted secret syncing for your entire infrastructure.

Hoppscotch

Hoppscotch

A powerful, privacy-first, and self-hostable API development client for testing and designing APIs, offering a collaborative environment for teams.

Immich

Immich

The ultimate self-hosted alternative to Google Photos. Offers automatic mobile backup, facial recognition, and a high-performance web/mobile UI.

Formbricks

Formbricks

A self-hostable, open-source solution for collecting customer feedback, including surveys, NPS, and in-app widgets, providing full data ownership.

SigNoz

SigNoz

A unified, open-source observability platform native to OpenTelemetry. It combines metrics, logs, and traces in a single pane of glass, offering a high-performance alternative to DataDog.

Mattermost

Mattermost

A secure, self-hostable, open-source communication platform designed for enterprises that prioritize data sovereignty and require a private alternative to SaaS chat solutions.

Docmost

Docmost

An open-source, self-hosted alternative to Notion and Confluence, providing real-time collaborative documentation and wikis with complete data sovereignty.

Keycloak

Keycloak

The open-source standard for Identity and Access Management (IAM), offering complete sovereignty over user data, federation, and SSO infrastructure without per-user licensing costs.

Supabase

Supabase

The open-source Firebase alternative. A comprehensive backend-as-a-service platform built on top of PostgreSQL.

PostHog

PostHog

The all-in-one open-source platform for product analytics, session recording, feature flags, and experimentation.

Zitadel

Zitadel

An open-source, API-first identity infrastructure platform for multi-tenant authentication and authorization, providing an alternative to Auth0 or Firebase.

Coolify

Coolify

An open-source, self-hostable platform-as-a-service (PaaS) that simplifies the deployment and management of web applications and databases.

OpenBao

OpenBao

A community-driven, open-source fork of HashiCorp Vault, providing secure secrets management for all environments.

RustDesk

RustDesk

A full-featured, open-source remote desktop alternative to TeamViewer and AnyDesk, written in Rust for high performance and security.

Cline

Cline

An autonomous coding agent that integrates into your IDE to edit files, run terminal commands, and debug code with human-in-the-loop control.

Dify

Dify

An open-source LLM app development platform for orchestrating RAG pipelines, agents, and complex workflows with a visual interface.

Zammad

Zammad

A modern, fully open-source helpdesk and customer support system that unifies email, chat, and social channels into a single interface.

Penpot

Penpot

The first open-source design and prototyping platform for product teams that bridges the gap between design and code, built with open web standards.

Open WebUI

Open WebUI

A feature-rich, self-hosted web interface for LLMs (Ollama, OpenAI). Includes RAG, RBAC, and full offline capability for enterprise privacy.