Code Quality Rank: L4
Programming language: Java
Tags: ORM    
Latest version: v3.3.0

greenDAO alternatives and similar packages

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Check out ObjectBox

Check out our new mobile database ObjectBox (GitHub repo).

ObjectBox is a superfast object-oriented database with strong relation support. ObjectBox is embedded into your Android, Linux, macOS, or Windows app.


greenDAO is a light & fast ORM for Android that maps objects to SQLite databases. Being highly optimized for Android, greenDAO offers great performance and consumes minimal memory.

Home page, documentation, and support links: https://greenrobot.org/greendao/

Build Status Follow greenrobot on Twitter


greenDAO's unique set of features:

  • Rock solid: greenDAO has been around since 2011 and is used by countless famous apps
  • Super simple: concise and straight-forward API, in V3 with annotations
  • Small: The library is <150K and it's just plain Java jar (no CPU dependent native parts)
  • Fast: Probably the fastest ORM for Android, driven by intelligent code generation
  • Safe and expressive query API: QueryBuilder uses property constants to avoid typos
  • Powerful joins: query across entities and even chain joins for complex relations
  • Flexible property types: use custom classes or enums to represent data in your entity
  • Encryption: supports SQLCipher encrypted databases

Add greenDAO to your project

greenDAO is available on Maven Central. Please ensure that you are using the latest versions of the greendao and greendao-gradle-plugin artifact.

Add the following Gradle configuration to your Android project. In your root build.gradle file:

buildscript {
    repositories {
        mavenCentral() // add repository
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.3'
        classpath 'org.greenrobot:greendao-gradle-plugin:3.3.0' // add plugin

In your app modules app/build.gradle file:

apply plugin: 'com.android.application'
apply plugin: 'org.greenrobot.greendao' // apply plugin

dependencies {
    implementation 'org.greenrobot:greendao:3.3.0' // add library

Note that this hooks up the greenDAO Gradle plugin to your build process. When you build your project, it generates classes like DaoMaster, DaoSession and DAOs.

Continue at the Getting Started page.

R8, ProGuard

If your project uses R8 or ProGuard add the following rules:

-keepclassmembers class * extends org.greenrobot.greendao.AbstractDao {
public static java.lang.String TABLENAME;
-keep class **$Properties { *; }

# If you DO use SQLCipher:
-keep class org.greenrobot.greendao.database.SqlCipherEncryptedHelper { *; }

# If you do NOT use SQLCipher:
-dontwarn net.sqlcipher.database.**
# If you do NOT use RxJava:
-dontwarn rx.**

Homepage, Documentation, Links

For more details on greenDAO please check greenDAO's website. Here are some direct links you may find useful:


Getting Started



Technical FAQ

Non-Technical FAQ

Migrating to greenDAO 3

More Open Source by greenrobot

ObjectBox is a new superfast object-oriented database for mobile.

EventBus is a central publish/subscribe bus for Android with optional delivery threads, priorities, and sticky events. A great tool to decouple components (e.g. Activities, Fragments, logic components) from each other.

Essentials is a set of utility classes and hash functions for Android & Java projects.