QGIS

Professional GIS platform for powerful spatial analysis and cartography

QRev

AI-driven sales agents that replace costly CRM platforms

Quary

Engineers' toolkit for building, testing, and deploying data models

QuestDB

Blazing‑fast time‑series database for real‑time analytics with low‑latency SQL

Quickwit

Fast, cloud-native search engine for logs and traces

RabbitMQ

Robust multi-protocol messaging broker for cloud-native applications

Raccoon

Fast, asynchronous reconnaissance suite for offensive security professionals

RAFT

Reusable CUDA-accelerated primitives for high-performance GPU ML

RAGFlow

RAG engine with deep document understanding and agents

Rallly

Open-source scheduling tool for effortless group meeting coordination

Rancher

Unified platform to deploy and manage Kubernetes at scale

RapidScan

Automated multi-tool web vulnerability scanner for rapid assessments

Rasa

Build contextual AI assistants for chat and voice platforms

RavenDB

High‑performance ACID‑compliant document database with developer‑first experience

Ray

Scale Python and AI workloads from laptop to cluster effortlessly

Rclone

Sync, copy, and mount files across any cloud storage

Reactour

Guided tours and onboarding for React applications

Redash

Turn any data source into shareable visual insights

RedELK

Centralized SIEM for Red Teams to monitor and detect Blue Team activity

Redpanda

Kafka‑compatible streaming platform that’s faster, lighter, and ZooKeeper‑free.

Redpanda Connect

High-performance resilient stream processor with declarative pipelines

Refine

React meta-framework for fast, customizable CRUD enterprise apps

Refly.AI

Agentic workspace that blends human insight with AI execution

Reminiscence

Self-hosted bookmark manager with archival and annotation capabilities