Open Source Databases using Rust

A curated collection of the best free and open source databases and the tools around them, covering relational, document, vector and time series engines plus the clients to work with them using Rust.

Milvus

Distributed vector database for AI applications, built to search billions of embeddings with metadata filtering, hybrid queries and hardware acceleration.

Alternative to:

Pinecone

High-performance vector database for GenAI applications

Stars
46,508
Forks
4,318
Last commit
18 hours ago

Spacedrive

Cross-device file manager that indexes local disks, clouds and external sources into one searchable library synced directly between your machines.

Alternative to:

ForkLift

Your personal distributed filesystem

Stars
39,317

Chroma

An embeddings database for AI applications, with an API of four functions and an in-memory mode that needs no server.

Alternative to:

Pinecone

Open-source vector database for AI search and retrieval

Stars
29,595

InfluxDB

Time series database for real-time events and monitoring, built on Apache Arrow, DataFusion and Parquet for quick queries.

Alternative to:

Amazon Timestream

Purpose-built time series database for real-time systems

Stars
31,786

Turso

In-process SQL database written in Rust, compatible with SQLite and now carrying a Postgres frontend, for embedded workloads.

SQLite-compatible database for scalable multi-tenant applications

Stars
25,071
Forks
1,506
Last commit
17 hours ago

TDengine

Time series database for IoT, connected cars and industrial sensor fleets, built for high cardinality ingestion at terabyte scale.

Alternative to:

Amazon Timestream

Time-series database and historian for industrial data

Stars
25,176

Neon Postgres

Serverless Postgres that separates storage from compute, giving stateless database nodes and branchable data for development teams.

Alternative to:

Amazon Aurora

Serverless Postgres for modern applications

Stars
23,268

QuestDB

A time-series database on open formats that ingests millions of events per second and keeps years of history queryable in one SQL engine.

Alternative to:

Amazon Timestream

High-performance time-series database for massive data scale

Stars
17,477

FalkorDB

A multi-tenant property graph database for teams building knowledge graphs, agent memory and retrieval on Cypher queries.

Alternative to:

Amazon Neptune

Graph database built on sparse matrices for knowledge graphs and GenAI

Stars
10,497

Databend

Rust data warehouse combining analytics, vector search and full-text search for enterprise teams running agents on their own data.

Alternative to:

Amazon Redshift

Cloud-native data warehouse for lightning-fast analytics

Stars
9,485

HelixDB

A graph and vector database written in Rust, for developers building AI memory, knowledge graphs and retrieval without stitching several stores together.

Alternative to:

Pinecone

Unify vector search and graph traversals in one database

Stars
6,239

GreptimeDB

A columnar database storing metrics, logs and traces on one engine, for teams running Prometheus, Loki and Elasticsearch side by side.

Alternative to:

Datadog

Unified observability database for metrics, logs, and traces

Stars
6,768

Tabularis

A desktop SQL workspace for PostgreSQL, MySQL and SQLite whose built-in MCP server lets AI agents read schemas and run queries.

Alternative to:

DataGrip

Desktop SQL client with built-in MCP for AI agent access

Stars
5,313

Garage

S3-compatible distributed object storage built for self-hosting across a handful of machines sitting in different physical locations.

Alternative to:

Amazon S3

Lightweight distributed storage for self-hosting

Stars
4,777

Memgraph

In-memory graph database written in C and C++ that speaks Cypher, built for real-time analytics and AI retrieval over connected data.

Alternative to:

Amazon Neptune

High-performance graph computing for scalable data analysis

Stars
4,633

SlateDB

Embedded key-value storage engine in Rust that writes its log-structured merge-tree straight to object storage instead of local disk.

Embedded storage engine built on object storage

Stars
3,597
Forks
326
Last commit
1 day ago

undb

No-code database and backend as a service built on SQLite, running from a single binary, a Docker container or the cloud.

Alternative to:

Coda

Local-first, offline-first no-code database platform

Stars
2,977

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Last commit

Stars
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Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Open Source Databases using Rust

A curated collection of the best free and open source databases and the tools around them, covering relational, document, vector and time series engines plus the clients to work with them using Rust.

Milvus

Spacedrive

Chroma

InfluxDB

Turso

TDengine

Neon Postgres

QuestDB

FalkorDB

Databend

HelixDB

GreptimeDB

Tabularis

Garage

Memgraph

SlateDB

undb

Milvus

Spacedrive

Chroma

InfluxDB

Turso

TDengine

Neon Postgres

QuestDB

FalkorDB

Databend

HelixDB

GreptimeDB

Tabularis

Garage

Memgraph

SlateDB

undb

Qdrant