in-memory-database

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redis /redis

Star72.2k

For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

redis open-source caching distributed-systems json real-time database time-series nosql key-value cache realtime message-queue in-memory no-sql in-memory-database message-broker key-value-store vector-search vector-databases

UpdatedDec 18, 2025
C

dragonflydb /dragonfly

Star29.5k

A modern replacement for Redis and Memcached

redis memcached multi-threading database cpp nosql key-value cache fibers in-memory in-memory-database message-broker keydb vector-search valkey

UpdatedDec 18, 2025
C++

apache /ignite

Star5k

Apache Ignite

iot cloud sql database big-data hadoop cache osgi ignite network-server in-memory-database data-management-platform network-client distributed-sql-database in-memory-computing

UpdatedDec 18, 2025
Java

olric-data /olric

Star3.4k

Distributed, in-memory key/value store and cache. It can be used as an embedded Go library and a language-independent service.

redis distributed-systems database nosql key-value cache distributed-database distributed-hash-table in-memory-database distributed-cache key-value-store

UpdatedNov 26, 2025
Go

roapi /roapi

Star3.4k

Create full-fledged APIs for slowly moving datasets without writing a single line of code.

graphql rust query sql analytics arrow rest-api s3 cloud-native parquet datasets in-memory-database blob-storage columnar delta-lake datafusion query-frontends static-datasets

UpdatedDec 8, 2025
Rust

4paradigm /OpenMLDB

Star1.7k

OpenMLDB is an open-source machine learning database that provides a feature platform computing consistent features for training and inference.

machine-learning feature-extraction feature-engineering in-memory-database mlops feature-store featurestore database-for-machine-learning machine-learning-database database-for-ai featureops

UpdatedDec 17, 2025
C++

hyrise /hyrise

Star854

Hyrise is a research in-memory database.

sql database cpp column-store in-memory-database

UpdatedDec 17, 2025
C++

jakekgrog /GhostDB

Star758

GhostDB is a distributed, in-memory, general purpose key-value data store that delivers microsecond performance at any scale.

golang database cache distributed-database datastore in-memory-database

UpdatedMar 10, 2021
Go

High-Performance Java-Native-Persistence. Store and load any Java Object Graph or Subgraphs partially, Relieved of Heavy-weight JPA. Microsecond Response Time. Ultra-High Throughput. Minimum of Latencies. Create Ultra-Fast In-Memory Database Applications & Microservices.

java storage-engine serializer cache persistence in-memory-storage in-memory-database object-graph

UpdatedOct 2, 2024
Java

EchoVault /SugarDB

Star519

Embeddable and distributed in-memory alternative to Redis.

go redis golang open-source database networking tcp memory cache cluster store pubsub distributed distributed-database client-server lru-cache in-memory-database consistent lfu-cache

UpdatedApr 24, 2025
Go

project-tsurugi /tsurugidb

Star414

Tsurugi - next generation RDB for the new era

sql database dbms transaction relational-database in-memory-database many-core oltp serializable tsurugidb

UpdatedDec 18, 2025
Shell

arriqaaq /flashdb

Star378

FlashDB is an embeddable, in-memory key/value database in Go (with Redis like commands and super easy to read)

go redis golang embedded database key-value in-memory in-memory-database key-value-store kv-store flashdb

UpdatedNov 18, 2023
Go

DevrexLabs /memstate

Star371

In-memory event-sourced ACID-transactional distributed object graph engine for .NET Standard

microservices csharp graph dotnet eventstore event-sourcing in-memory-database origodb

UpdatedNov 26, 2023
C#

eclipse-store /store

Star323

java storage-engine persistence in-memory-storage in-memory-database object-graph

UpdatedDec 17, 2025
Java

apache /ignite-3

Star291

Apache Ignite 3

iot cloud sql database big-data cache ignite network-server in-memory-database data-management-platform network-client distributed-sql-database in-memory-computing

UpdatedDec 18, 2025
Java

goldmansachs /obevo

Star245

Obevo is a database deployment tool that handles enterprise scale schemas and complexity

java sql-server database mongodb deployment postgresql oracle database-migrations maintenance database-management db2 database-schema sybase stored-procedures in-memory-database db-migration db-migrate database-deployment db-deployment mongodb-deployment

UpdatedMar 20, 2023
Java

StereoDB /StereoDB

Star222

Ultrafast and lightweight in-process memory database written in F# that supports: transactions, secondary indexes, persistence, and data size larger than RAM.

caching database csharp fsharp dotnet dotnet-core hacktoberfest in-memory-database