AIFF to MP4Converter — Fast & Free Online

Convert AIFF to MP4 on a mobile device. The tool adapts to smaller screens.

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1CONVERTER Media Team·Audio & Video Specialists·Updated Mar 15, 2026

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How AIFF to MP4 Conversion Works

AIFF is a document format: it stores data in the AIFF format. MP4 is a video format that packages H.264 or H.265 video with AAC audio in a container format widely supported across every platform and device. This conversion changes the file's encoding, compression method, and supported feature set. Metadata such as creation date and embedded colour profiles is preserved where the target format supports it. Converting between these two formats is common when the source application does not support MP4 natively or when the target platform only accepts MP4. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and automatically deleted after 24 hours.

How to Convert AIFF to MP4

Follow these simple steps to convert your AIFF files to MP4 format in seconds

Step 1

Drop your AIFF file into the box above or pick it from your device

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Step 2

Confirm MP4 as the target format

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Step 3

Pick the resolution, codec, and bitrate for the MP4 video

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Step 4

Start the conversion and watch the live progress

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Step 5

Download the finished MP4 file — it is deleted from our servers after 24 hours

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Average conversion time: Less than 2 minutes

Visual Conversion Preview

aiff

Source file

Size:2.4 MB

Format:AIFF

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Converting...

~2s

mp4

Output file

Size:1.5 MB

Saved:-36%

36%

Size Reduction

Processing Time

99%+

Quality Retained

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Choose Your Conversion Quality

Select the perfect balance between quality and file size for your AIFF to MP4 conversion

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Low Quality

Smallest file, basic quality

File Size:Very Small

Speed:Very Fast

Quality Level

Recommended

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Medium Quality

Balanced size and quality

File Size:Medium

Speed:Fast

Quality Level

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High Quality

Larger file, great quality

File Size:Large

Speed:Moderate

Quality Level

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Maximum Quality

Largest file, best possible quality

File Size:Very Large

Speed:Slow

Quality Level

tips_and_updatesQuality Selection Tips

When to use Low/Medium:

•Web uploads and social media sharing
•Email attachments with size limits
•Quick previews and thumbnails

When to use High/Maximum:

•Professional printing and publishing
•Archive and long-term storage
•When quality is more important than size

Video Tip: Medium quality is ideal for web streaming. Use High or Maximum for videos you plan to edit further or archive.

Why Convert AIFF to MP4?

Discover the advantages of converting your AIFF files to MP4 format

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AIFF offers apple standard

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Batch process multiple AIFF files at once

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MP4 audio output with configurable bitrate

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MP4 compatible with all major music players

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MP4 provides universal support

Additional Features

243+

Supported Formats

<2 min

Average Time

24/7

Available

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