Extract text from GameMaker projects (YYZ)
To convert YYZ projects to another format, you need GameMaker or other Developer software.
To convert other file formats to the "Compressed Game Project" file type, you need software like GameMaker or a similar tool.
The .YYZ file format is primarily a compressed project archive used by GameMaker (formerly GameMaker Studio 2), developed by YoYo Games. It packages a complete game development project - including sprites, audio, scripts, and the core .YYP (YoYo Project) file - into a single file for easy sharing, backup, or distribution. In rare cases, it is also used as a Yaz0dec compressed audio file for Nintendo game modding.
Because .YYZ is inherently a proprietary project format tailored for one specific engine, it requires the user to have a licensed installation of GameMaker to natively open, compile, or edit the game. This creates a major disadvantage if you only need to extract a single script or an image asset, or if you are collaborating with a developer and do not own the software. Furthermore, large game projects can exceed several gigabytes, making these files cumbersome to transfer or inspect.
The best conversion target for a .YYZ file is a standard ZIP archive. Because the file internally uses standard ZIP compression, you can extract its contents - such as PNG sprites or GML (GameMaker Language) scripts - by treating it as a standard archive without data loss.
Standard online converters frequently fail to process .YYZ files because they do not recognize the specific extension, despite the common underlying architecture. Because this is a specialized developer format, converting the entire project into a playable game or another engine's format is impossible automatically. We analyze the internal file signature to detect the underlying ZIP structure, allowing you to bypass software limitations and extract embedded assets directly.
Convert.Guru analyzes your YYZ file, detects the exact format, and lets you read the text inside.
Users also converted YYP, YYZA, YZ, ZIP, GM2 and YY files.
If you want to convert YYZ file to , you can use GameMaker or similar software from the "Game Development Project Archive" category. In the File menu, look for Save As… or Export….
To convert files to YYZ, try GameMaker or another comparable tool in the "Game Development Project Archive" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our YYZ converter.