TL;DR

Need a MessageBox, MsgBox, or similar function fast?

This open-source generator lets you build message boxes visually, choose your OS and programming language, and instantly copy ready-to-use code.

Works online or offline, supports multiple languages, and even adapts to WordPress.

Perfect for beginners who want simplicity and for advanced users who need accuracy and speed.

Introduction

How many times have you needed a simple (or not so simple) MessageBox and ended up digging through pages of documentation – just to figure out the right syntax, the correct constant for a button or icon, or the possible return values?

This generator saves you that effort.

How It Works

The tool provides an online (or local) form. You pick your environment (operating system + programming language), set the parameters with a few clicks, and instantly get the code.

At the end, just copy it to your clipboard and paste it into your IDE

Installation

Local or Web Server

• Download the local-standalone folder.
• Open messagebox.html in any modern browser.

WordPress (optimized for Pubnews Free Theme)

• In /wp-content/uploads/, create a folder called messagebox-generator.
• Copy these files from the wp-pubnews folder:
  • messagebox-wp.css
  • messagebox.js
  • messagebox-translations.js
• Insert the content of messagebox-wp.html into a Gutenberg block or a Code Snippet.
• Dark/light theme changes are detected automatically.

Usage

• Select your language.
• Select your operating system (or “w/o OS” if you just want code that runs in a browser).
• Choose your programming language from the Language list. If no language is available for a given OS, you’ll see “No languages available”.
• Configure buttons, icons, modal options, etc., from the dedicated tab.
• Decide whether to use named constants or numeric values. You can also hide constants with value 0 (default) to keep the code cleaner.
• Click Generate Code.
  • The code appears below the buttons (non-editable to prevent syntax errors).
  • Includes proper Case blocks where needed.
  • Tabs are inserted as ASCII 9 (and adapt to your IDE’s tab settings).
• When satisfied, click Copy Code. The code goes to your clipboard, with visual confirmation.
• Paste into your IDE and replace the Message and Title placeholders.

Tip for advanced users: Known bugs or incomplete/incorrect official documentation are noted in the form. Workarounds are suggested when relevant (for example, with LibreOffice Basic).

Translation Support

The interface text is stored in messagebox-translations.js under the JavaScript constant translations.

Currently included languages:

• English (en)
• French (fr)
• German (de)
• Hungarian (hu)
• Italian (it)
• Portuguese (pt)
• Romanian (ro)
• Spanish (es)
• Ukrainian (uk)

Why Use It?

• Skip repetitive documentation—get code fast
• Works offline, online, and adapts perfectly to mobile screens
• Beginner-friendly, yet precise enough for advanced developers
• Fully open source and easy to customize

See the Code generator

Basic (Windows)

The Gadgetisimo.ro – MIT License applies for open source software. See here

Version History and Downloads

View change.log

Until next time,

Happy Coding!

Sources: image created with ChatGPT

Innoxius

Programming, graphic design, and cooking relax me. The fact that I also earn some money from the first two is just a minor detail. I’m skilled in Microsoft Office and LibreOffice (including developing applications for Office), all sorts of IT&C tools that make life easier, web design (Joomla and WordPress, with a bit of CSS and PHP), SEO optimization, and Google Ads campaigns. I like traveling — to non-Instagrammable places. I use a Motorola Edge 50 Ultra, which doubles as my laptop (together with a 15″ Viewsonic touch display and a Logitech K380 keyboard + Logitech M720 Triathlon mouse). PS: I have a 2007 Logan. I keep it just to joke about it, to embarrass it.