MOV files are common on iPhones, Macs, and professional cameras — but they do not play well with Windows PCs, social media platforms, and many video players. Converting MOV to MP4 is the most reliable way to make your videos work everywhere.
The problem is that many conversion tools reduce video quality, introduce blurriness, or add watermarks. In this guide, we cover 4 methods to convert MOV to MP4, from the fastest lossless option to simple free tools.
Method 1: Lossless Conversion With UniConverter 17 (Fastest, Best Quality)
This is the method we recommend for most users, especially if you care about keeping full video quality or need to convert multiple files at once.
Wondershare UniConverter 17 supports true lossless conversion between MOV and MP4. If both files use the same codec, it can convert in seconds without re-encoding, preserving 100% of the original quality.
See our full UniConverter 17 review for more details on conversion performance.
Step-by-step guide:
- Download, install, and open UniConverter 17 on your PC or Mac.
- Drag and drop your MOV files into the program window. You can add multiple files at once for batch conversion.
- In the output format menu, select MP4 as the target format. Choose Same as source for lossless conversion.
- Choose an output folder for your converted files.
- Click Convert to start processing. For lossless conversion, most files finish in just a few seconds.
This method works for single files, batches of 100+ files, and 4K footage. It is by far the fastest and most reliable way to convert MOV to MP4.
Method 2: HandBrake (Best Free Option)
HandBrake is a popular free open-source converter. It works well, but it does re-encode the video, so there will be a small quality loss.
How to do it:
- Download and install HandBrake.
- Open your MOV file in HandBrake.
- Choose the MP4 preset that matches your video resolution.
- Adjust the quality slider to your preference. Higher quality = larger file size.
- Choose an output location and click Start Encode.
HandBrake is completely free, but it is slower than paid GPU-accelerated tools, and it can feel complicated for beginners.
Method 3: Online Converter (For One-Time Small Files)
There are many web-based converters that work right in your browser. They are convenient if you do not want to install anything.
Pros and cons:
- ✅ No software to install
- ✅ Works on any device
- ❌ Almost all have file size limits on free plans
- ❌ You have to upload your video to a third-party server (privacy risk)
- ❌ Quality is often reduced
- ❌ Slow for large files
We only recommend this method for very small MOV files under 100MB, and never for sensitive or personal footage.
Method 4: Built-in System Tools
Both Windows and Mac have basic built-in tools that can convert simple video files.
- Mac: You can use QuickTime Player to export MOV files as MP4. It is simple, but offers very little control over quality and settings.
- Windows: The Photos app can do basic format conversion, but results are often lower quality than dedicated software.
These work for quick, casual conversions, but they are not good for batch processing or preserving quality.
Which Method Is Best?
| Method | Quality | Speed | Best for |
|---|---|---|---|
| UniConverter 17 | Perfect lossless | Very fast | Regular use, batch files, 4K |
| HandBrake | Very good | Slow | Free option, technical users |
| Online tools | Average | Very slow | One-time small files |
| Built-in tools | Decent | Average | Quick casual use |
For perfect quality and maximum speed, UniConverter 17 is the clear winner. It costs a little money, but it saves hours of time and produces much better results than free tools.
If you also need to edit your videos after conversion, we recommend pairing it with Wondershare Filmora 15 for a complete video workflow.
Ready to try the fastest conversion method? Check our full UniConverter 17 review for pricing and download details.