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

Reor

AI‑enhanced local note‑taking with automatic linking and semantic search

Requestly

Local-first API client, interceptor, and mocking platform.

Restfox

Offline-First HTTP & Socket Testing Client for Web & Desktop

Restreamer

Self-hosted live-stream hub with multi-platform restreaming and easy Docker deployment

RethinkDB

Scalable NoSQL database delivering real-time query updates

reviewdog

Automated lint feedback directly in pull‑request reviews.

RisingWave

Real-time streaming platform with native Iceberg lakehouse support

RobustMQ

High-performance multi-protocol messaging platform for cloud-native AI workloads

Rocket.Chat

Secure, customizable communication platform for teams and customers

Rollout

Redis-backed feature flags for Ruby with granular rollout control

Roo Code

AI-powered dev team inside your editor, boosting productivity.

Rowy

Spreadsheet UI for Firestore with low-code cloud automation

Rudder

Automate infrastructure security and compliance across diverse environments

RudderStack

Build real‑time, privacy‑first customer data pipelines with RudderStack.

RustFS

High-performance Rust-based distributed object storage with S3 compatibility

Rybbit

Privacy‑first web analytics that’s intuitive and self‑hostable

Ryot

Self-hosted tracker for media, fitness, and life activities

SafeLine

Self‑hosted WAF that shields web apps from attacks