All about CAPX Files

The CAPX file type is primarily associated with Construct.

CAPX	File extension: CAPX
	File type:	project file

What is a CAPX file?

CAPX files mostly belong to Construct. CAPX files are project files used by the Construct game development environment. They are not a simple text file but rather a complete game project package.
These files use the ZIP format to bundle project assets together. Inside a CAPX file you will find layouts, event sheets, object data, and configuration details stored in XML or JSON files. This structure helps keep all game-related data in one package while supporting version control and modular project management.
You should use the official Construct editor available from Construct.net to open and edit these files. Although you can open them with a standard ZIP extractor to inspect the underlying files, it is best to work within the Construct environment to avoid unintentional corruption.

Project Integration: Contains all game assets and logic.

Data Archive: Packaged as a ZIP archive to organize multiple files.

Editing Safety: Requires the Construct editor to maintain project integrity.

How to open CAPX files

You need a suitable software like Construct to open a CAPX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CAPX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CAPX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CAPX Text Viewer

Choose your .capx file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert CAPX files:

Construct
See the previous paragraphs to learn more about the main application. CAPX files are often referred to as Construct games because this type of file is primarily created or used by this software.
Construct 2
A .CAPX file is a Construct 2 project file. It's the standard format used to save games and applications created with Construct 2, a popular HTML5 game engine. These files are typically ZIP-compressed archives containing various project assets like images, sounds, and the game logic represented in a visual, event-based system. Opening a .CAPX file requires Construct 2 or a compatible game engine. Construct 3, the successor to Construct 2, uses a different file format (.C3P). This file format is classified as Game Development File.

Technical Data for CAPX File Extension

File classification:

Game

Related files:

c2p, c3p, caproj, csproj, npf, apr, zip, xml, json

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: capella.CapXML
EXEFile: %ProgramFiles%\AUDIO\Capella 2004\capstart.exe %1

ProgramID: capella.CapXML
EXEFile: %ProgramFiles%\capella-software\capella 2004\capstart.exe %1

a capx project file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with CAPX files

Associate the CAPX file extension with the correct application.
Update your software that should actually open project files. Because only the current version supports the latest CAPX file format. Search, therefore, e.g. on the manufacturer website after an available Construct update.
To make sure that your CAPX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .CAPX file online - secure, fast, and no downloads needed.