Turn MOV files into MP4 locally on your Mac or Windows PC—fast, private, and simple.
Made for editors, creators, and anyone who wants their videos converted without dealing with file limits, cloud uploads, or complicated settings.
Download MOV2MP4 for Windows (x64)
Works on Windows 10 and 11 (64-bit).
Download MOV2MP4 for Mac (Apple Silicon)
Works on Apple Silicon Macs: M1, M2, M3, M4 and newer.
You don't need to install Python, FFmpeg, or any development tools. Everything is bundled into a single installer.
- Download the installer — Download
MOV2MP4-Setup.exe. - Run the installer — Double-click
MOV2MP4-Setup.exeand follow the steps. - Open MOV2MP4 — Open MOV2MP4 from your Start Menu or Desktop shortcut.
Note on Windows Security: Because this app is new and unsigned, Windows SmartScreen might show a warning ("Unknown publisher"). To proceed, click More info and then click Run anyway. You only have to do this once.
You don't need to install Python, FFmpeg, Homebrew, or any other tools.
- Download and open the DMG — Download
MOV2MP4-macOS-arm64.dmgand double-click to open it. - Move to Applications — Drag the MOV2MP4 app into your Applications folder.
- Open MOV2MP4 — Go to Applications and double-click MOV2MP4.
Note on macOS Security: Because the app is not yet signed with an Apple Developer certificate, macOS may block it from opening the first time. To fix this:
- Open System Settings and go to Privacy & Security.
- Scroll down until you see the message about MOV2MP4 being blocked.
- Click Open Anyway, and then click Open.
If it still does not open, run the Launch MOV2MP4.command script included inside the DMG file to automatically bypass the restriction.
Once the app opens:
- Add your videos — Drag your
.movfiles or folders directly into the app. You can add multiple files at once. - Choose the output folder — Click Browse Folder to select where you want your converted videos saved.
- Convert — Click Start Conversion.
Your files are processed directly on your computer. Nothing is ever uploaded to the cloud.
- Batch conversion: Convert queues of multiple videos at once.
- Overwrite existing files: Re-convert and overwrite existing MP4 files if needed.
- Delete Original: Automatically remove source MOV files after a successful conversion. (Be careful with this setting).
- Cancel anytime: Stop active conversions safely without corrupting files.
MOV2MP4 is built on a multithreaded Python conversion engine, powered by an embedded FFmpeg binary and a CustomTkinter graphical interface.
- Language: Python 3.11
- GUI: CustomTkinter
- Conversion Engine: FFmpeg (bundled)
- Packaging: PyInstaller (macOS), Inno Setup (Windows)
- CI/CD: GitHub Actions
# Clone the repository
git clone https://github.com/MaybeSomeone-arc18/mov2mp4.git
cd mov2mp4
# Set up a virtual environment
python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
# Run the command-line interface
python convert.py ./videos --output ./converted
# Run unit tests
python3 -m unittest discover tests
# Build the macOS application bundle
./build_macos.shView the Source Code on GitHub
This image is for batch conversion with the command-line engine, not the desktop GUI or the experimental saas/ prototype. It does not upload files. Docker must be installed locally; the image includes FFmpeg.
docker build -f Dockerfile.cli -t mov2mp4-cli .
mkdir -p videos
# Put .mov files in videos. Use an absolute path for the bind mount.
docker run --rm -v "$(pwd)/videos:/work" mov2mp4-cli /workThe generated MP4 files are written alongside the MOV files in the mounted folder. The GitHub Actions Docker CLI smoke job generates a small MOV, converts it in the image, and probes the output codec. Do not treat that as a desktop GUI or Windows container test. The separate Windows CI job builds the installer and runs a bundled-FFmpeg conversion on windows-latest.