Convex

Reactive TypeScript database for live-updating web applications

Coolify

Self-hostable alternative to Heroku, Netlify, and Vercel

Coraza

High-performance Go-based WAF compatible with OWASP CRS v4

Coroot

eBPF-powered observability platform with automated root cause analysis

Corteza

Open-source low-code platform for CRM and business apps

CouchDB

Reliable, multi-master JSON database with built-in replication

Counterscale

Self-hosted web analytics on Cloudflare's edge network

Countly

Self-hosted product analytics platform for mobile, web, and desktop

CourseLit

Self-hosted platform to sell courses and digital downloads

Coze Loop

Full‑life‑cycle platform for building, testing, and monitoring AI agents

Craft Cms

Flexible PHP CMS for bespoke content and headless experiences

Craft.js

Create custom drag‑and‑drop page editors using React.

CrateDB

Distributed SQL database for real-time analytics at scale

Crater

Open-source invoicing and expense tracking for businesses

Crawlee

Build fast, human-like web scrapers with a single library

crawlergo

Headless Chrome crawler that harvests high-quality URLs for security testing

CrewAI

Lightning‑fast Python framework for autonomous multi‑agent automation

Cronflow

Lightning-fast code-first workflow automation engine for Node.js

Crossplane

Declarative, code‑free control plane for multicloud infrastructure

cstate

Fast, minimal open-source status page built with Hugo

CubeFS

Cloud-native distributed file and object storage system

Curlie

Curlie: curl’s power with httpie’s friendly syntax

CVAT

Collaborative video and image annotation platform for computer vision

Cyberark Conjur

Role-based secrets management for modern cloud infrastructure