MemoraDB is a high-performance in-memory database (IMDB) designed for ultra-low latency key-value storage and operations, featuring RESP protocol compliance, atomic commands, and TTL-based expiry. Optimized for microsecond response times, it's ideal for real-time applications like caching and session stores.

RedKit is a lightweight, high-performance Redis-compatible server framework written in Go

redis可视化工具

A simple Redis clone implemented in Go

A TypeScript/Node.js reimplementation of CodeCrafters style build-your-own-X challenges (Redis, HTTP server, tree-walking interpreter), plus a custom stage-based test harness that drives each solution over its real protocol (TCP/HTTP/CLI) and gates progression stage by stage.

A Redis server implemented from scratch in Rust — RESP protocol, key/value store with expiry, and concurrent client handling (CodeCrafters).

Redis-inspired in-memory datastore in C++17 featuring a multithreaded TCP server, RESP protocol support, TTLs, persistence, Pub/Sub, logical databases, and cache eviction.

Redis-like in-memory database built in Go with custom RESP protocol, supporting strings, lists, and concurrent TCP clients.

Rust Memory Cache is a TCP simple single thread memory cache developed in Rust using RESP Protocol.

A lightweight C++ Redis command-line interface featuring native TCP socket programming, manual RESP command formatting, and a custom response parser.

⚡ Lightning-fast Redis-compatible in-memory database built in Go. Sub-millisecond latency, WAL persistence, and a beautiful admin UI.

Custom Redis server built from scratch in Node.js — hand-written RESP protocol parser and command engine over raw TCP.

In-memory key–value store with LRU eviction, hash–list indexing, sustaining <10µs access latency and persistent retrieval at ~1–2ms, epoll-based TCP server handling 10K+ concurrent connections with the RESP-2 protocol for scalable client–server communication. Benchmarked extensively via redis-benchmark achieving 92K GETs/sec and 84K SETs/sec .

From-scratch Redis-protocol-compatible key/value server in Java 21 + Netty. RESP2, LRU/LFU/FIFO eviction, active+passive expiration

Tiny redis with RESP protocol decoding/encoding, RDB persistance, replication, sreams and transactions support

Noema is a semantic cache for LLM apps in Java 21: caches responses by meaning via a from-scratch HNSW vector index, with request coalescing. Built on a RESP key-value engine (redis-cli compatible).

A Redis server reimplemented from scratch in C99. Full RESP protocol, 50+ commands across strings, lists, hashes, sorted sets, streams, transactions, and geo. No libraries. No dependencies.

Embedded Redis Server is a lightweight, in-process Redis-compatible server written in Kotlin. Designed for testing, development, and CI/CD pipelines. Features Spring Boot auto-configuration, RESP2 protocol support, and zero external dependencies. Use it just like H2 Database - simply add the dependency and start coding!

A key-value store built from scratch in Python to understand Redis internally: hand-written RESP protocol parser, lazy TTL expiration, append-only log persistence, and thread-per-connection concurrency. Speaks real RESP, so redis-cli works with it directly.

lite version of redis