Java Library

Open-source Java projects categorized as Library

Top 23 Java Library Projects

  • GitHub repo BottomBar

    (Deprecated) A custom view component that mimics the new Material Design Bottom Navigation pattern.

  • GitHub repo FoldingCell

    :octocat: 📃 FoldingCell is a material design expanding content cell inspired by folding paper material made by @Ramotion

  • GitHub repo bitcoinj

    A library for working with Bitcoin

    Project mention: Need help with bitcoin seed phrase recovery using 3rditeration BTCrecover | | 2021-03-19

    I found another thing, to actually use the seed to test addresses there is a pbkdf step that takes some time:

  • GitHub repo Apache Shiro

    Apache Shiro

  • GitHub repo Slidr

    Easily add slide to dismiss functionality to an Activity

  • GitHub repo Bt

    BitTorrent library and client with DHT, magnet links, encryption and more

  • GitHub repo Apache Mahout

    Mirror of Apache Mahout

  • GitHub repo CircleMenu for Android

    :octocat: ⭕️ CircleMenu is a simple, elegant UI menu with a circular layout and material design animations. Android UI library made by @Ramotion

  • GitHub repo easydeviceinfo

    :iphone: [Android Library] Get device information in a super easy way.

  • GitHub repo Hyperion-Android

    App Debugging & Inspection Tool for Android

    Project mention: Looking for Android alternative to an iOS Jailbreak Tweak | | 2021-03-04

    Hello, I recently found this tweak but it only works on jailbroken iPhones. It basically lets you use Apple's "FLEX" debugger in any application, meaning you can use it in applications that you haven't made yourself. This basically lets you "inspect element" on any app you want. I found a similar debugging tool for Android ( but I was wondering if there was any way to tweak this tool and use it on apps you don't own? Thanks.

  • GitHub repo Bubble Navigation

    🎉 [Android Library] A light-weight library to easily make beautiful Navigation Bar with ton of 🎨 customization option.

  • GitHub repo Apache PDFBox

    Mirror of Apache PDFBox

    Project mention: How to Build Java Applications Today: April 5, 2021 | | 2021-04-05

    I use Apache software every day: Mostly Commons, but also POI, PDFBox, and Tika. They were pioneers for enterprise-friendly open-source libraries at a time when the GPL stroke fear into the hearts of development managers everywhere.

  • GitHub repo Siddhi

    Stream Processing and Complex Event Processing Engine

  • GitHub repo Apache Log4j 2

    Apache Log4j 2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements available in Logback while fixing some inherent problems in Logback's architecture.

  • GitHub repo Apache POI

    Mirror of Apache POI

  • GitHub repo material-about-library

    Makes it easy to create beautiful about screens for your apps

  • GitHub repo Apache OpenNLP

    Mirror of Apache OpenNLP

  • GitHub repo TextFieldBoxes

    Material Design text field that comes in a box, based on (OLD) Google Material Design guidelines.

  • GitHub repo react-native-geolocation

    Geolocation APIs for React Native

    Project mention: How to use React Native Geolocation to get Postal Address | | 2021-02-26


  • GitHub repo Code Scanner

    Code scanner library for Android, based on ZXing

  • GitHub repo Direct Select for Android

    :octocat: ≡ DirectSelect is a selection widget with an ethereal, full-screen modal popup displaying the available choices when the widget is interact with.

  • GitHub repo iCal4j

    A Java library for parsing and building iCalendar data models

  • GitHub repo secure-storage-android

    Store strings & credentials securely encrypted on your device

    Project mention: Best practice to store encrypted data in android. | | 2021-02-08

    exactly check this

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2021-04-05.


What are some of the best open-source Library projects in Java? This list will help you:

Project Stars
1 BottomBar 8,451
2 FoldingCell 4,808
3 bitcoinj 3,902
4 Apache Shiro 3,433
5 Slidr 2,574
6 Bt 1,963
7 Apache Mahout 1,912
8 CircleMenu for Android 1,713
9 easydeviceinfo 1,666
10 Hyperion-Android 1,664
11 Bubble Navigation 1,419
12 Apache PDFBox 1,400
13 Siddhi 1,195
14 Apache Log4j 2 1,153
15 Apache POI 1,151
16 material-about-library 1,099
17 Apache OpenNLP 1,024
18 TextFieldBoxes 758
19 react-native-geolocation 653
20 Code Scanner 558
21 Direct Select for Android 524
22 iCal4j 496
23 secure-storage-android 336