RPG-Maker MV & MZ File Decrypter

PNG-Files (Images - ".rpgmvp & .png_-Files") don't need the decryption code, except you want to re-encrypt them.  Go to the Restore Images page.

In this area you can De- and (Re-)Encrypt Files from RPG-Maker MV & MZ Games.

You can get the decrypt code from the file:

• RPG-Maker MV: "Game directory"/www/data/System(.json) or any encrypted image (".rpgmvp"-File)
• RPG-Maker MZ: "Game directory"/data/System(.json) or any encrypted image (".png_"-File)

Click "Detect" after you selected the System(.json) file. If you know the key, you can also just enter it in the text box.

In this area, you can restore PNG files (images - ".rpgmvp & .png_-Files") from RPG Maker games without the decryption key.

How to use?

1. Check if the encrypted files have the file extension ".rpgmvp", ".rpgmvm", ".rpgmvo", ".png_", ".ogg_" or ".m4a_" - If they have these extension(s), then you can use this script
2. Get the en-/decrypt code.
   PNG files (images - ".rpgmvp & .png_-Files") don't need the decryption code, except you want to re-encrypt them. Go to Restore Images page.
   • Upload the System(.json) file from the game and detect the code automatically. (Click on "Detect", after selecting the System(.json))
   • If the detection doesn't work, further instructions will pop up.
3. Select the file(s) for de-/encryption - You can select multiple files!
4. Hit the decrypt or encrypt button
5. You can preview your decrypted files, if you click on "View", next to the filename.
6. You can save them by clicking on "Save". (The script will keep the file name and change the extension for you!)

Browser Support

First: Please note, that this script is only tested and developed on Firefox.

• Edge - Usable
• Google Chrome - Usable
• Firefox - Usable
• Safari - Usable
• Opera - Usable

No files leave your browser. Everything is processed locally — the decrypter never uploads your game files.

Credits

Code Credits

• Petschko - For creating this project
• Stuk - For the ZIP library (jszip @ Github)
• pieroxy - For the LZ-String library (lz-string @ Github)
• eligrey - For the FileSaver.js library (FileSaver.js @ Github)
• Anonymous - For the tip with the No-Key "decryption" for PNGs
• r4sas - For help solving the Chrome "View-File" bug

This page hosts Petschko's open-source decrypter (MIT licence). Full documentation and source: github.com/Petschko/RPG-Maker-MV-Decrypter.