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alibaba/druid

Analysis updated 2026-06-20

★ 28,200JavaAudience · developerComplexity · 2/5LicenseSetup · easy

TLDR

Druid is a Java database connection pool library from Alibaba that reuses pre-opened database connections for better performance, with built-in monitoring dashboards and detailed connection statistics.

Mindmap

mindmap
  root((druid))
    What it does
      Connection pooling
      DB performance
      Monitoring stats
    Tech Stack
      Java
      Spring Boot
      Maven
    Use Cases
      Pool management
      Query monitoring
      Performance tuning
      Spring integration
    Audience
      Java developers
      Backend engineers
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Code map

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filefunction / class

What do people build with it?

USE CASE 1

Replace your Java app's database connection pool with Druid for improved performance and production-grade monitoring.

USE CASE 2

Add a live monitoring dashboard to a Spring Boot app to see active database connections and query statistics.

USE CASE 3

Configure connection timeouts, pool size limits, and query validation for a Java backend service.

USE CASE 4

Diagnose slow queries and connection leaks using Druid's built-in statistics API.

What is it built with?

JavaSpring BootMaven

How does it compare?

alibaba/druidlenve/vhranuken/mindustry
Stars28,20028,09127,471
LanguageJavaJavaJava
Setup difficultyeasyhardeasy
Complexity2/54/52/5
Audiencedeveloperdevelopergeneral

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 30min

Add the Maven dependency and configure datasource properties, the Spring Boot starter simplifies setup to a few lines of config.

Free to use, modify, and distribute for any purpose including commercial use, as long as you include the license notice.

In plain English

Druid is a database connection pool library for Java, created by Alibaba's DataWorks team. A connection pool is a cache of pre-opened database connections that your application can reuse, rather than opening and closing a fresh connection for every database query. This reduces overhead and improves performance in applications that need to talk to a database frequently. According to the description, Druid was specifically built with monitoring in mind, it provides detailed statistics and visibility into database connection usage, which helps developers and operators understand how their applications are interacting with the database. This is a distinguishing feature compared to other connection pool libraries. You would use Druid in a Java backend application that connects to a relational database, particularly when you need production-grade monitoring, diagnostics, or fine-grained control over connection behavior. It integrates with Spring Boot via a dedicated starter module. The README is very brief and primarily links to Chinese and English documentation wikis. Based on the description and available information, this is a Java library (available via Maven Central, the standard Java package repository) licensed under Apache 2.0.

Copy-paste prompts

Prompt 1
Add Druid as the database connection pool in my Spring Boot app and enable the built-in monitoring dashboard.
Prompt 2
Configure Druid in my Java application with max pool size, connection timeout, and a validation query.
Prompt 3
How do I access the Druid stats API endpoint to monitor active database connections in my production Java app?
Prompt 4
Show me how to set up Druid with a MySQL datasource in Spring Boot using the spring-boot-starter-druid dependency.

Frequently asked questions

What is druid?

Druid is a Java database connection pool library from Alibaba that reuses pre-opened database connections for better performance, with built-in monitoring dashboards and detailed connection statistics.

What language is druid written in?

Mainly Java. The stack also includes Java, Spring Boot, Maven.

What license does druid use?

Free to use, modify, and distribute for any purpose including commercial use, as long as you include the license notice.

How hard is druid to set up?

Setup difficulty is rated easy, with roughly 30min to a first successful run.

Who is druid for?

Mainly developer.

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