Concrete CMS is a user-friendly, Open Source content management system (CMS) for building and managing websites.

Conduit

Conduit is a simple, fast, and reliable Open Source Matrix chat server.

HashiCorp Consul is a service networking solution that simplifies the connection, security, and configuration of services across any infrastructure.

CookieFirst

CookieFirst is a user-friendly cookie consent management platform that ensures compliance with international privacy regulations while optimizing user experience.

Coolify

Coolify is a self-hostable, Open Source alternative to platforms like Heroku, Netlify, and Vercel, offering flexibility, control, and powerful features for deploying and managing applications.

Corosync is a high-performance, Open Source cluster engine providing group communication and high availability for building fault-tolerant applications.

Coturn is a high-performance, Open Source TURN and STUN server enabling seamless peer-to-peer communication across NATs and firewalls.

Countly

Countly is a privacy-first, AI-ready analytics platform that helps businesses capture, analyze, and act on user data across all devices while ensuring data ownership and compliance.

CrateDB is a distributed SQL database built for real-time analytics, search, and AI applications at any scale.

Open Source Invoicing Solution for Individuals & Businesses.

Cronicle

Cronicle is a multi-server task scheduler and runner with a web UI, providing real-time stats and a live log viewer for managing scheduled, repeating, and on-demand jobs.

CrowdSec

CrowdSec provides highly accurate, crowd-sourced threat intelligence blocklists for enhanced cybersecurity, reducing alerts and improving efficiency.

CryptPad

CryptPad is a secure, collaborative, and Open Source office suite offering end-to-end encrypted document creation and sharing.

CUPS

OpenPrinting CUPS is a standards-based, Open Source printing system for Linux and other Unix-like operating systems, supporting local and network printers.

Cusdis is a lightweight, Open Source, and privacy-respecting comment system.

Cypress

Cypress is a complete end-to-end testing solution for modern web applications, simplifying testing and accelerating development.

Dagu

Dagu is a powerful Cron alternative with a web UI and YAML-based workflow definition for simplifying complex job scheduling and dependencies.

dash.

dash. is a beautiful and feature-rich server dashboard for monitoring system metrics.

DashLord

DashLord is a web application that analyzes and assesses the quality, security, and accessibility of websites.

Databasus is an open-source, self-hosted backup tool for PostgreSQL, MySQL, MariaDB, and MongoDB, featuring multi-storage support and notification capabilities.

Data Injection

Data Injection is a web application for efficient and secure data import, management, and transformation.

DAViCal

DAViCal is an Open Source CalDAV server for secure and collaborative calendar sharing.

DBeaver

DBeaver is a freeand Open Source, cross-platform database tool for managing and querying various SQL and NoSQL databases.

DbFit is a web-based tool for writing and running readable, automatable database tests.