RekuTools

Quick 'n' Dirty tool for dumping fnkeys.pem & encoding Flipnotes from MP4.
Supports macOS & most popular Linux distributions.
© RekuBuild 2024

Usage

Set permissions so the user can execute:
chmod +x RekuTools

Prepare the script for dumping fnkeys.pem and run with:
./RekuTools --dump path/to/flipnotestudio.nds

Prepare the script for encoding flipnotes and run with:
./RekuTools --encode path/to/video.mp4

Notice:

Ensure you have mpv installed. If you don't, the script will ask to install it for you.
Ensure Flipnote Studio .nds file is USA region.
Ensure MP4 files are 256x192 prior to encoding.
For best results, ensure MP4 files are strictly black, white and blue OR black white and red prior to encoding.
Both fnkeys.pem and encoded flipnote MP4s will be output to the same directory the script is in.