AIFF to MP4 Converter

Convert AIFF to MP4 online, for free.



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  • From Device
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Video Options
Choose a codec to encode or compress the video stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding video, choose "Copy" (not recommended).
Select a resolution for your video (width x height) in pixels.
Change the ratio between width and height, for example, 4:3 or 3:2
Change FPS (frames per second) of video
Video will be rotated clockwise.
Sets the mode of sizing the video. "Max" resizes the video to fit within the width and height, but will not increase the size of the image if it is smaller than width or height. "Crop" resizes the video to fill the width and height dimensions and crops any excess video data. "Scale" enforces the video width and height by scaling. "Pad" resizes the video to the width and height dimensions and keeps the aspect ratio by adding black bars if necessary.
Add hardsubs or softsubs to the video. "copy" copies the softsubs from the input file.
Choose a file Browse
Upload a .srt or .ass subtitle file to be burned into your video.
Add hardsubs or softsubs to the video. "copy" copies the softsubs from the input file.
Audio Options
Choose a codec to encode or compress the audio stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding audio, choose "Copy" (not recommended).
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Trim Settings
Specify the start position of trim (HH:MM:SS). Leave at 00:00:00 to disable.
Specify the end position of trim (HH:MM:SS). Leave at 00:00:00 to disable.



How to Convert AIFF to MP4?

  1. Click the “Choose Files” button to select your AIFF files.
  2. Click the “Convert to MP4” button to start the conversion.
  3. When the status change to “Done” click the “Download MP4” button

Easy to Use

Simply upload your AIFF files and click the convert button. You can also batch convert AIFF to MP4 format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our AIFF to MP4 Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.


Apple developed Audio Interchange File Format (AIFF) to store high-quality, digital-audio (waveform) data. Many professionals use it, particularly users of Apple platforms. It is lossless, which means there is no loss of quality or data from the original, but this also means that AIFF files take up more space. AIFF can locate loop point data and musical notes, which is useful for musicians.

 

How to open an AIFF file?

By default, AIFF opens in Windows Media Player or iTunes, depending on the operating system. Other programs that open AIFF include VLC media player, Audacity, Winamp, and Elmedia Player.

 

Please note that if using an Android or non-Apple device, you will need to convert the AIFF file—likely to a MP3 file—in order to open it. Mobile Apple products open AIFF files without file conversion.

 

Developed by: Apple Inc.

Initial Release: 1988

Useful links:

https://en.wikipedia.org/wiki/Audio_Interchange_File_Format

https://www.lifewire.com/aiff-aif-aifc-files-2619569

MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video. It is compatible with a wide range of devices and operating systems, using a codec to compress file size, resulting in a file that is easy to manage and store. It is also a popular video format for streaming over the Internet, such as on YouTube. Many consider MP4 to be one of the best video formats available today.

 

How to open an MP4 file?

MP4 files open in the operating system's default video player. Simply double-clicking the file opens it. There is no need for third-party software. On Windows, it opens in Windows Media Player. On Mac, it opens in QuickTime.

 

On some devices, particularly mobile, opening this file type can be problematic. MP4 is a container that contains various kinds of data, so when there is a problem opening the file, it usually means that data in the container (an audio or video codec) is not compatible with the device’s OS. To resolve this issue, try VLC media player.

 

Developed by: Moving Picture Experts Group (MPEG)

Standard: ISO/IEC 14496

Initial release: 1999

Useful links:

https://en.wikipedia.org/wiki/MPEG-4

https://mpeg.chiariglione.org/standards/mpeg-4


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