Java Compiler IDE 4+

Programming, Coding, JVM, JDK

Marcin Olawski

Designed for iPad

    • 3.3 • 332 Ratings
    • Free
    • Offers In-App Purchases



Pico Compiler is a lightweight development environment for writing Java programs.

Key features:

• Java 9 offline compiler

• Developer keyboard - Developer keyboard adds a new row of keys to the default on-screen keyboard. It consists of swipe buttons with all common symbols, punctuation and brackets, and a special navigation key.

• Smart code completion - Pico will complete the names of classes, methods, fields, and keywords within the visibility scope. When you invoke code completion, Pico Compiler analyses the context and suggests the choices that are reachable from the current position of the caret.

• Black UI theme - protect your eyes with the dark theme.

The app is designed as an educational tool and cannot be used to develop complex projects (Spring, Hibernate, Java EE etc). Visit project website at to learn all Pico features and limitations.

Java is registered trademark of Oracle and/or its affiliates.
The Pico Compiler project is not affiliated with Oracle.

What’s New

Version 2.1

• New app name
• Bug fixing

Ratings and Reviews

3.3 out of 5
332 Ratings

332 Ratings

AppyiTunes ,

Good Potential, but still missing adding java files

Re-downloaded it and bought the 2.99 pro version. You can make things from scratch -which is a good for practice. But there is a missing feature to add and remove files, to transfer files to computer.

DarkRadon ,

Nice for some experimental coding

Very nice app for experimenting and exploring ideas while away from the PC; very useful for when I am waiting in line somewhere, and an idea pops into my head. The free version is just to give you an idea of how it works, and the price if the pro version is good considering what one can do with this app. Highly recommended!

Areadien ,

Decent for the only real Java compiler out there

So this compiler seems to be the only real one out there for the iPad. However, it doesn't have the ability to change file or project names, it doesn't allow undo, its tab space is 2 spaces, and its font is not monospace. Ultimately, I'm using it because I need to learn Java and don't have a functioning computer, but still, it would be nice if they would add more basic features.

App Privacy

The developer, Marcin Olawski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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