Convert MOV to AAC Online Free
Drag & drop your .mov file here, or click to browse
Converts to AAC on secure servers · first daily conversion free · no signup
Your first conversion each day is free. A $2.99 one-time Day Pass unlocks 24 hours and ends by itself.
Extract the AAC audio track from your QuickTime MOV video and save it as a standalone AAC file. Ideal for iOS apps, streaming platforms, and cross-platform audio distribution.
By ChangeThisFile Team · Last updated: March 2026
ChangeThisFile extracts audio from your QuickTime MOV video and saves it as AAC using FFmpeg on our secure servers. AAC is the most widely supported modern audio format on iOS, Android, and all major streaming platforms. Files are auto-deleted, free with no signup needed.
QuickTime vs AAC: Format Comparison
Key differences between the two formats
| Feature | MOV (QuickTime) | AAC |
|---|---|---|
| Type | Apple video container | Lossy audio bitstream (ADTS) |
| Audio codec | Usually AAC internally | Advanced Audio Coding |
| Video stream | Yes — video track included | No — pure audio bitstream |
| File size | Large (video dominates) | Small — efficient lossy compression |
| Compatibility | macOS, iOS, QuickTime Player | iOS, Android, streaming, automotive, Windows |
| Quality | High — depends on video audio settings | Excellent at 128–256 kbps |
| Use case | Apple video | Streaming platforms, mobile apps, broadcast, in-car |
When to Convert
Common scenarios where this conversion is useful
Prepare iPhone video audio for streaming platform upload
iPhone videos are MOV files. Extract the audio as AAC to upload directly to Spotify, SoundCloud, or other platforms that accept AAC audio without needing to process a large video file.
Extract narration audio from Mac screen recordings
macOS screen recordings saved as MOV often contain high-quality narration or tutorial audio. Extract as AAC to use the audio track independently in presentations, e-learning platforms, or podcast apps.
Create AAC audio assets for iOS app development
iOS apps use AAC for audio playback via AVFoundation. Convert MOV video assets to AAC to extract the audio component needed for app sound effects, background music, or in-app audio content.
Reduce file size for email or cloud sharing
MOV files are large. Extracting just the audio as AAC produces a file orders of magnitude smaller, making it easy to share interviews, speeches, or meeting audio via email or messaging apps.
Convert video interviews to audio for transcription
Transcription services typically accept audio files. Convert MOV interview recordings to AAC to upload them to services like Otter.ai, Rev, or Google Recorder for fast, accurate transcription.
Who Uses This Conversion
Tailored guidance for different workflows
Podcasters
- Pull the audio from a recorded QuickTime interview or webinar and publish it as a AAC episode
- Convert a QuickTime livestream recording to AAC so listeners can catch up on the go
Musicians & Producers
- Extract a performance take from a QuickTime video into AAC to edit in your DAW
- Rip reference audio from a QuickTime clip to AAC for sampling or transcription
Content Creators
- Convert a QuickTime recording to AAC to reuse the soundtrack as background audio or a voiceover
- Turn a QuickTime talk into a AAC audiogram or clip for social platforms
How to Convert QuickTime to AAC
-
1
Upload your MOV file
Drag and drop your .mov file onto the converter or click to browse and select it. The free tier accepts files up to 25MB; eligible paid browser access accepts up to 100MB.
-
2
Server-side AAC extraction
Your file is uploaded over HTTPS and FFmpeg extracts the audio. When the MOV already contains AAC audio, it is often stream-copied directly to the AAC output with no re-encoding and zero quality loss.
-
3
Download your AAC file
Click Download to save the .aac file. Both the original MOV and the AAC output are automatically deleted from our servers immediately after download.
Developers: convert via API →
Frequently Asked Questions
If the MOV already contains AAC audio — which is typical for iPhone recordings and Mac screen captures — FFmpeg can stream-copy it to AAC with zero quality loss. If the source is PCM or another codec, re-encoding is required.
iPhone and Mac recordings typically use AAC. Professional MOV files from Final Cut Pro, cameras, or older QuickTime workflows may contain PCM, ALAC, or AC-3. FFmpeg handles all of these automatically.
Both use AAC audio. A .aac file is a raw ADTS bitstream, while .m4a wraps AAC in an MPEG-4 container with richer metadata support. For Apple Music, M4A is preferred; for raw AAC bitstreams and streaming, .aac is used.
Yes. AAC is the standard audio format for iOS. AVFoundation and AVAudioPlayer on iOS natively support AAC without any additional codecs.
FFmpeg uses a high-quality variable bitrate setting by default (typically 192 kbps VBR) when encoding to AAC. For stream-copy scenarios, the bitrate matches the original.
Yes. Android has supported AAC natively since version 1.0. AAC files play in the default music player and all major third-party apps.
Yes. Upload your Final Cut Pro export MOV and the converter extracts the audio as AAC. For high-quality mastering or editing, consider FLAC or AIFF to avoid additional encoding loss.
Yes. ChangeThisFile is completely free. No signup, no subscription, and no limits on conversions.
Very fast. Stream-copy conversions (when source is AAC) are nearly instantaneous. Re-encoding scenarios typically complete in under 10 seconds for most video lengths.
Yes. All uploads use HTTPS encryption and files are deleted from our servers automatically after conversion. We never store or access your content.
Related Conversions
Related Tools
Free tools to edit, optimize, and manage your files.
Need to convert programmatically?
Use the ChangeThisFile API to convert QuickTime to AAC in your app or script. Free tier included.
Ready to convert your file?
Convert QuickTime to AAC instantly — free, no signup required.
Start Converting