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Java-Editor

javaeditor.org

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Spec score 8.5 #3 of 23 in Java IDEs

What it is

Java-Editor is a Java development environment intended for teaching and home use on lower-specification computers. Its class modeler reads source files, presents classes with their attributes and methods, and transfers model edits back into source. A UML window supports interactive object creation and method or attribute testing without a main method. The GUI designer works with AWT, Swing and JavaFX components and synchronizes form changes with code. Students can make control-flow diagrams in the structogram editor, generate programs or methods, and use puzzle mode. Debugging includes breakpoints, stepwise execution, watch expressions, local variables, parameters and call-stack information. Installing Git or Subversion adds corresponding menus, while JUnit adds its own menu. LLM assistance supports OpenAI and Gemini cloud models and local models through Ollama. The program requires a Java Development Kit; JavaFX must be installed separately for JDK 11 and later. It is free for personal, commercial and government use. Classroom versions support portable USB installations, INI configuration and network-folder deployment.

Spec sheet

What it does
Java-Editor is a teaching-oriented Java development environment intended for schools and home users.Read 19 Oct 2026 · javaeditor.org
Purpose
Java-Editor is an integrated Java development environment designed for school teaching and home use on lower-specification computers.Read 2 Oct 2026 · javaeditor.org
Privacy
The website is hosted by IONOS, records access-log data, automatically deletes full IP addresses after seven days, and uses only technically necessary session cookies.Read 2 Oct 2026 · javaeditor.org
Support
Bug reports and feature requests are invited by email to [email protected].Read 19 Oct 2026 · javaeditor.org
Headquarters
Mainz, GermanyRead 28 Sep 2026 · javaeditor.org
Accessibility
The software supports larger fonts and a component menu for users who cannot use a mouse, including visually impaired or blind pupils.Read 19 Oct 2026 · javaeditor.org
Android mode
Android mode uses an Android SDK and can build or install projects prepared with Android Studio on a connected device.Read 19 Oct 2026 · javaeditor.org
Build and debug
Java-Editor can compile, run and debug programs, showing breakpoints, watches, parameters, attributes and call stacks.Read 19 Oct 2026 · javaeditor.org
Class modeler
The class modeler reads Java source files, displays attributes and methods, and writes model changes back to source code.Read 19 Oct 2026 · javaeditor.org
Class modeling
Its class modeler reads Java source files, displays classes with attributes and methods, and transfers model changes back to source files.Read 2 Oct 2026 · javaeditor.org
Classroom deployment
Special versions support portable USB use, INI-based configuration and installation in local or network folders.Read 19 Oct 2026 · javaeditor.org
Debugging
The application provides a debugger with breakpoints, stepwise execution, watch expressions, local variables, parameters and call-stack information.Read 2 Oct 2026 · javaeditor.org
Documentation depth
Documentation covers installation, configuration, Java tools, editor options, UML, Android, Mindstorms, language files and integrations.Read 19 Oct 2026 · javaeditor.org
Editing tools
The editor provides syntax highlighting, search and replace across multiple files, regular expressions, bookmarks, formatting and shortcuts.Read 19 Oct 2026 · javaeditor.org
GUI design
The GUI designer supports AWT, Swing and JavaFX components and synchronizes form changes with source code.Read 2 Oct 2026 · javaeditor.org
GUI designer
The GUI designer supports AWT, Swing and JavaFX components and synchronizes form edits with source code.Read 19 Oct 2026 · javaeditor.org
Independent education adoption
The University of Göttingen publishes teaching materials that use Java-Editor for introductory Java GUI programming and data-structure lessons.Read 19 Oct 2026 · uni-goettingen.de
Independent maintainer fact
German Wikipedia identifies Gerhard Röhner as the main developer and describes the program as Delphi software for Windows.Read 19 Oct 2026 · de.wikipedia.org
Java dependency
A Java Development Kit must be installed for Java-Editor to work fully.Read 19 Oct 2026 · javaeditor.org
JavaFX dependency
For JDK 11 and later, JavaFX must be installed separately because it is no longer bundled with the JDK.Read 19 Oct 2026 · javaeditor.org
Languages
The interface is available in English, German, Dutch, Spanish, Brazilian Portuguese and Chinese.Read 19 Oct 2026 · javaeditor.org
Latest release
The download page lists version 23.25 dated 2026-10-14 for both 64-bit and 32-bit distributions.Read 19 Oct 2026 · javaeditor.org
Licence statement
The official imprint says no licence is required and permits personal, commercial and government use without liability or warranty.Read 19 Oct 2026 · javaeditor.org
Limit: Android app reliability
Google Play reviews report crashes that lost unsaved work and criticize the custom keyboard and limited save workflow.Read 19 Oct 2026 · play.google.com
Limit: compatibility setup
Heise notes that Linux requires Wine, Mac requires compatibility or virtualization software, and a current 32-bit JDK is required in its listing.Read 19 Oct 2026 · heise.de
Linux support
Linux use is documented through Wine and requires Microsoft core fonts.Read 19 Oct 2026 · javaeditor.org
LLM cost requirement
OpenAI integration requires an API key and a paid account or credits with OpenAI.Read 19 Oct 2026 · javaeditor.org
LLM integrations
Built-in LLM assistance supports OpenAI and Gemini cloud models plus local models through Ollama.Read 2 Oct 2026 · javaeditor.org
LLM providers
The documentation lists OpenAI and Google Gemini cloud models plus local models including Llama, Gemma, StarCoder2, Phi and WizardLM.Read 19 Oct 2026 · javaeditor.org
LLM requirements
OpenAI use requires an API key and paid account or credits, while Ollama models run locally and require suitable CPU, GPU and disk space.Read 2 Oct 2026 · javaeditor.org
LLM support
Built-in LLM features provide an editor assistant and an integrated chat window.Read 19 Oct 2026 · javaeditor.org
macOS support
Mac use is documented through CrossOver or Windows virtualization, with UTM and Windows 11 instructions for M1/M2 Macs.Read 19 Oct 2026 · javaeditor.org
Notable dated news
The MNU conference program dated 2021-03-03 says Java-Editor had been developed for school informatics teaching for 20 years.Read 19 Oct 2026 · mnu.de
Praise: classroom suitability
Independent German education resources describe the free editor as low-demand software suitable for schools and emphasize its UML and GUI teaching tools.Read 19 Oct 2026 · lehrerfortbildung-bw.de
Praise: educational modelling
A 2021 MNU conference description praises its class modeler, interactive UML object testing, GUI designer, structograms and sequence diagrams for teaching object-oriented concepts.Read 19 Oct 2026 · mnu.de
Privacy hosting
The website states that IONOS hosts the service and that access-log data such as IP address, date and time is recorded.Read 19 Oct 2026 · javaeditor.org
Quality-tool integrations
Optional Checkstyle, Jalopy and JUnit installations add style checking, formatting and JUnit menus.Read 19 Oct 2026 · javaeditor.org
Rating on Google Play
3.2 out of 5 from 4.5K reviewsRead 19 Oct 2026 · play.google.com
Rating on Heise
4.2 out of 5 from 62 ratingsRead 19 Oct 2026 · heise.de
Repository licence
The public GitHub repository is marked MIT licensed and contains source, setup files and compilation instructions.Read 19 Oct 2026 · github.com
Sequence diagrams
Sequence diagrams can be created interactively and generated from debugger or UML activity.Read 19 Oct 2026 · javaeditor.org
Source-control integrations
Installing Git or Subversion adds corresponding menus to the tools menu.Read 19 Oct 2026 · javaeditor.org
Structograms
The structogram editor creates control-flow diagrams, can generate Java code and includes student puzzle modes.Read 19 Oct 2026 · javaeditor.org
UML testing
Its UML window supports interactive object creation, attribute editing and method calls without requiring a main method.Read 19 Oct 2026 · javaeditor.org
Windows support
Java-Editor is documented as a Windows application.Read 19 Oct 2026 · javaeditor.org

Plans and prices

Free Free free for personal, commercial and government use No paid tier stated Read 19 Oct 2026 · javaeditor.org

Every Java-Editor plan and price →

Strong points and limits

Strong points

  • Class modeler connects diagrams and Java source
  • Structograms can generate programs or methods
  • Debugger includes breakpoints and call-stack information
  • Free for personal, commercial and government use

Limits

  • A Java Development Kit is required
  • JavaFX must be installed separately for JDK 11 and later
  • OpenAI assistance requires an API key and paid account or credits

Who it suits

Java-Editor suits teachers and students learning Java, as well as home users with lower-specification computers. Its classroom deployment options are relevant to teaching environments.

Verdict

Java-Editor combines modeling, visual design, debugging and classroom-oriented tools in a free environment. Account for the JDK requirement and separate JavaFX installation where applicable.

Where Specifiction places it

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