Open Source Java Code Editors
Sort By:
Java Code Editors
View 100 business solutionsBrowse free open source Java Code Editors and projects below. Use the toggles on the left to filter open source Java Code Editors by OS, license, language, programming language, and project status.
-
Outgrown Windows Task Scheduler?Windows Task Scheduler wasn't built for complex, cross-platform automation. Get a free diagnostic that shows exactly where things are failing and provides remediation recommendations. Interactive HTML report delivered in minutes.
-
AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
-
1
IntelliJ Community Edition
IntelliJ IDEA & IntelliJ Platform
IntelliJ Community is the open source upstream of JetBrains’ IntelliJ IDEA, forming the core of a powerful, extensible, and intelligent development environment. It provides foundational features like a robust editor with code completion, syntax highlighting, refactoring tools, version control integrations, terminal, debugger, and plugin architecture. Since it’s open, community developers can contribute to language supports, UI tweaks, and platform enhancements. From this base, JetBrains builds full editions (Ultimate) by layering proprietary features for enterprise frameworks and integrations. IntelliJ Community supports multiple JVM-based languages (Java, Kotlin, Scala, Groovy) and serves as a host for plugin ecosystems that add support for web, database, and cloud tooling. The project emphasizes performance, modularity, and a responsive user experience, maintaining a codebase that balances long-term maintainability with cutting-edge developer features. -
2
jVi is a vi/vim editor clone built on top of the javax.swing.text package. Available for NetBeans and JBuilder. jVi is designed to quickly and easily integrate into many disparate java based desktop apps, from IDE's to mail-news readers.
-
3
jEdit
jEdit is a programmer's text editor written in Java.
jEdit is a programmer's text editor written in Java. It uses the Swing toolkit for the GUI and can be configured as a rather powerful IDE through the use of its plugin architecture. -
4
PyDev is a Python Development Environment (Python IDE plugin for Eclipse). It features an editor with code completion, code analysis, refactoring, outline view, debugger, mark occurrences and other goodies - check http://pydev.org for more details). It's kept going by community contributions, so, if you think it's a worthy project, please contribute through http://pydev.org
-
Atera all-in-one platform IT management software with AI agentsAtera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
-
5
Apache NetBeans
Apache NetBeans
Apache NetBeans is much more than a text editor. It highlights source code syntactically and semantically, lets you easily refactor code, with a range of handy and powerful tools. Apache NetBeans provides editors, wizards, and templates to help you create applications in Java, PHP and many other languages. Apache NetBeans can be installed on all operating systems that support Java, i.e, Windows, Linux, Mac OSX and BSD. Write Once, Run Anywhere, applies to NetBeans too. -
6
AndroidIDE
AndroidIDE is an IDE for Android to develop full featured Android apps
An IDE to develop real, Gradle-based Android applications on Android devices. -
7
JByteMod-Beta
Java bytecode editor
JByteMod is a multifunctional bytecode editor with syntax highlighting and live decompiling and method graphing. -
8
Acode
A powerful text/code editor for Android
Welcome to Acode Editor, a powerful and versatile code editing tool designed specifically for Android devices. Whether you're working on HTML, CSS, JavaScript, or other programming languages, Acode empowers you to code on-the-go with confidence. Step into the future of coding with our innovative plugin system. This all-new feature is compatible with a wide range of plugins, increasing Acode's functionality to meet all your development needs. With over 30 plugins already available in the plugin store, the possibilities are endless. Acode lets you build and run websites right in your browser, debug with ease using the built-in console, and edit a wide range of source files from Python and CSS to Java, JavaScript, Dart, and more. -
9
CP Editor
The IDE for competitive programming
CP Editor is designed for competitive programming. It helps you focus on your algorithms and automates the compilation, execution and testing of your code. It can fetch test cases from different platforms and submit solutions to Codeforces. It automates all that's reasonably possible and allows you to purely focus on your code. Say no to manual efforts of running and testing your code against expected outputs. It can fetch test cases automatically from almost all competitive programming sites. No more copy-pasting! With a single click, you can run your code on multiple test cases and get verdicts. Thanks to CF tools, It can submit your solution directly to codeforces and show you verdict without leaving the editor. -
Desktop and Mobile Device Management SoftwareDesktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
-
10
Octclipse
Octave Eclipse GUI
Octave development environment built upon Eclipse's Dynamic Languages Toolkit (http://www.eclipse.org/dltk/). Distributed as an Update site for Eclipse 3.7 Indigo and Indigo-based package for several platforms. Supports search, autocompletion, launching scripts, interactive console, debug and integrated plotting on Octave versions 3.2.x, 3.4.x and 3.6.x. The current goal is to make it running out-of-box on multiple platforms. Currently only Linux and Windows are supported. Mac support is possible. The project needs a maintainer for Mac version, since I don't have Mac to build Octclipse and test it on this platform. Also, it is worth to support Eclipse 4.0 Juno with DLTK 4. -
11
Delphi : VRCalc++ and more Binary Exec
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Vincent Radio {Adrix.NT} Embarcadero : Delphi : Executable Binaries Delphi : VRCalc++ Object Oriented Scripting Language : Engine + Ext Libraries VRCalc++ OOSL Visual Stage Project : VCL & FMX (FireMonkey) VRCalc++ Script Executor: - VCL Console - Terminal Console - FMX Console + VRCalc++ OOSL : VR System Scripted Standard Runtime Library Delphi Applics - VR Multi Editor : Smart Text Editor - VR Lazy Code Editor : Smart RTF Multi Lang Code Text Editor - VR Astro Vision : Astrology Program - VR Free Chess 2D : Chess Game Program - VR Mosaic : Puzzle Resolver Program (VCL, FMX) - VR Blocks game - VRGraphStage - VR TTT OX game - Embarcadero Binary Runtime Libraries - VR Binary Runtime Libraries for Delphi & C++Builder - Visual Styles Java Applications - Analog Clock - VR Hanoi Towers - VR Rects World Sample - VR Free Chess 2D - VR Mosaic with auto resolver - Action/Entity Model Test includes installation instructions adrixnt@hotmail.it -
12
BitCode Java IDE
Lightweight Java IDE with syntax highlighting and convenient features.
BitCode is a lightweight and versatile Integrated Development Environment (IDE) designed for Java programming. It offers a user-friendly interface with features tailored to enhance your coding experience. -
13
-
14
Swing Artist
Mini Java IDE and Swing builder
The aim of this project is to build an IDE for Java language which can be used to develop GUI based applications easily without knowing about the GUI components in detail. The idea is to enable users to make GUI as if they are using paint application to draw a design and later generating the code for it. The project also includes a built in Code Editor for editing Java applications. The code editor can also be used to edit file of any supported text file format. The work is focused on the layout of the components that gives the interface a clear and consistent look, conforming to specifiable interface guidelines, in an application and across applications. This interface builder provides an environment for specifying component and layout specifications for the interface of Java applets and applications. The tool enables anyone who knows the semantics of the Java Abstract Windowing Toolkit (java.awt) to build quality interfaces. This is achieved by integrating general design principles -
15
NotepadXX
NotepadXX: A Lightweight, Powerful Text Editor for Every User
📝 NotepadXX is your all-in-one, cross-platform text editor — lightning-fast, powerful, and designed to boost your productivity. Built with Java and optimized for Windows & Linux, it combines the simplicity of Notepad with advanced features modern developers love. 🔥 Key Highlights: Real-time code linting (ANTLR-powered) with tooltips Live Markdown preview (split view or pop-out) Built-in terminal, file explorer & browser launchers 6 beautiful themes (Dark, Light, Darcula, macOS) Blazing-fast UI with JavaFX/Swing hybrid Fully offline & privacy-respecting (zero telemetry) 🐞 Bug Fixes in v1.2.1 Fixed crash when Markdown Preview is triggered on systems without JavaFX (now shows a friendly error message). Prevented JavaFX WebView from initializing on headless systems to avoid startup errors. Resolved fallback issue: now switches correctly to Swing JFileChooser when JavaFX is unavailable. Improved error dialog display for Markdown Preview failures. -
16
Axel-DICE
Axel-DICE Code Editor For Windows,Linux
🌈 Axel-DICE The Ultimate Code Editor for Effortless Coding! 💻🎲Axel-DICE revolutionizes coding with Dynamic Integrated Code Editor(DICE), allowing you to run code instantly without saving or compiling. With its user-friendly interface, you can write and execute code effortlessly with a single click. Save time, eliminate manual processes, and unleash your coding potential! ⚡️🔥 🚀 Lightweight and fast: No complex setup required. Install Axel-DICE and start coding right away! 🕵️♀️ Auto Language Detection: Automatically detects the programming language C, C++, Java, and Python. 🔍 Simplified Execution: Simply paste your code and click the run button to execute it, eliminating the need to create files or deal with boilerplate code. Axel DICE automates the entire process for you. 📊 Dynamic Terminal: Instantly see program output in real-time, providing immediate feedback on your code execution. 🍀For More Info: https://github.com/Vignesh-72/Axel-DICE -
17
Open source Interactive Graphical Multiuser System for developing from online RPG/Adventure Games to strategy games like Starcraft. It includes a complete IDE (code editor, sprite and animation editor, scenario editor, debugger), a compiler and a server.
-
18
SCedit is a source code editor developed in java hence platform independent and light weight easy to use application. It provides many features like auto formatting, multiple language selection, syntax highlighting, color template customization etc.
-
19
Tje is an java source code editor written in java using SWT. The main goal is to have a small and fast editor with some nice features as code completion, source browsing ...
-
20
AUNA Smartpad will be very similar to Notepad++ (found here on Sourceforge) in that it is a source code editor with a tabbed interface, configurable syntax highlighting... but will also include an intellisense feature and have a different interface.
-
21
Coded is a graphically oriented source code editor. With the use of class and method wizards, advanced code manipulation via drag-and-drop, automatic code formatting, and autocomplete/completion suggestion, Coded will make the process of editing a breeze
-
22
Copybara
Copybara: A tool for transforming and moving code between repositories
Copybara is an open source code transformation and migration tool developed by Google for synchronizing and managing source code across multiple repositories. It allows developers to transform, filter, and move code between repositories while maintaining a consistent source of truth. Copybara is particularly useful in workflows where projects maintain both confidential (internal) and public (open source) repositories, enabling controlled synchronization and contribution management between them. The tool supports advanced transformations—such as file relocation, content replacement, and metadata adjustments—defined declaratively in configuration files. It operates in a stateless manner, storing synchronization state within commit metadata to ensure reproducibility and collaboration among multiple users. Copybara currently supports Git repositories (with experimental Mercurial support) and can be integrated with CI/CD systems or run manually. -
23
Delphi : VRCalc++ OOSL (Script) and more
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Vincent Radio {Adrix.NT} Sources Library & Applications : Delphi C++ Java VRCalc++ C# VRCalc++ Object Oriented Scripting Language - Engine Source Pascal Code - Delphi Packages Build Prjs - VRCalc++ Scripted System Std RT Library - Guides & Docs (CHM, PDF, DOCX) - VCL & FMX (FireMonkey) Support - Script Test Code (Lang RTL VCL FMX) - Visual Stage Project : VCL & FMX Paged Lists & Iterators : Delphi C++ Java C# Multi-Dim Arrays & Direct Graph Classes : Delphi C++ Java VRCalc++ C# Delphi Drag&Drop Applications - VRCalc++ Script Executors: Terminal, VCL, FMX - VRMultiEdit - VRLazyCodeEditor - VR Astro Vision (Astrology) - Paged List Test - VRMosaic : Delphi C++Builder Java C# +with auto resolver - VR Free Chess 2D - VRBlocks - VRGraphStage - VR TTT OX + icons & bitmaps + VCL VisualStyles + Build Projects + instructions to build projects to build projects - Delphi : RAD Studio - C++ : Dev-C++ - java : NetBeans - C# : MS/VS adrixnt@hotmail.it -
24
DomainMath IDE
An open source gui frontend application for GNU Octave
DomainMath IDE is an open source GUI front-end application for GNU Octave -
25
The fluid editor is a prototype source code editor supporting a "bring from" exploration model.With the fluid editor programmers can avoid explicit navigation between source documents by incorporating related code into the document under examination
