Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.TJA
File Type
Taiko no Tatsujin Chart File
Category
Data
Best first step
Use compatible software
Quick Summary
A practical overview of the .tja file format
The TJA file format is a plain text-based configuration file used primarily by Taiko no Tatsujin (Drum Master) rhythm game simulators, most notably TaikoJiro and its various derivatives like TJAPlayer3 and OpenTaiko. These files contain the metadata and note data required to play a specific song wi…
File extension
.TJA
File type
Taiko no Tatsujin Chart File
Category
Data
Recommended action
Open with a trusted compatible app
How to open a .tja file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .tja.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .tja file?
File extension details and usage information
The TJA file format is a plain text-based configuration file used primarily by Taiko no Tatsujin (Drum Master) rhythm game simulators, most notably TaikoJiro and its various derivatives like TJAPlayer3 and OpenTaiko. These files contain the metadata and note data required to play a specific song within the simulator. A typical TJA file includes headers for the song title, subtitle, BPM (beats per minute), wave file path (the actual audio), and offset. The core of the file consists of 'courses' or difficulty levels (Easy, Normal, Hard, Oni, Ura), where notes are represented by numeric codes: 0 for a blank space, 1 for a small red note (Don), 2 for a small blue note (Ka), 3 for a large red note, and 4 for a large blue note. It also supports complex commands for scrolling speed changes, barline visibility, and lyric synchronization. Because it is a text format, it is easily editable using any standard text editor, allowing the community to create custom charts for their favorite songs. It serves as the backbone for the Taiko simulator community, enabling the sharing and playing of user-generated content.
Software Compatibility
Programs that may open or work with .tja files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .tja files be converted?
Options for saving or exporting this file to another format
In many cases, a .tja file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .tja file.
Why can't I open a .tja file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .tja format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .tja files
To open a .tja file, use software that supports this file format.
- TaikoJiro
- TJAPlayer3
- OpenTaiko
- Notepad++
- Visual Studio Code
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .tja file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.