Mnemosyne is a powerful, automated video compression engine designed for simplicity and absolute metadata preservation. It optimizes your video collection to 480p while ensuring your digital history remains intact.
- Smart Compression: Automatically optimizes videos to H.264 at 480p using hardware-accelerated encoders (NVENC, QSV, VideoToolbox) with automatic fallback to CPU.
- Safety Bridge: Uses an atomic file swap system to ensure zero data loss. Your original file is only replaced after the conversion is verified.
- Timeline Preservation: Unlike standard converters, Mnemosyne restores the original creation and modification timestamps to the new files.
- Zero-Friction Portability: All execution scripts are fully self-contained polyglots. They include the core engine source code internally for maximum portability.
Run mnemosyne.bat. It handles environment checks and can automatically install Python via winget if missing.
Run bash mnemosyne.sh. The script is fully self-contained. Ensure Python 3 is installed on your system.
This project is open-source software licensed under the GNU General Public License v3.0.
Mnemosyne relies on FFmpeg for video processing. Please refer to NOTICE.md for full third-party attributions, license details, and the disclaimer of warranty.
Copyright (C) 2026 Mejensi.