Convert WebM to M4A Online Free
Extract the audio from your WebM video and save it as M4A — the Apple AAC audio format. Perfect for importing web video audio into iTunes, iPhone, or Apple Music libraries.
ChangeThisFile extracts audio from your WebM video and encodes it as M4A using FFmpeg on our secure servers. M4A is Apple's native AAC audio container, compatible with iTunes, iPhone, and Apple Music. Files are auto-deleted after conversion, free with no signup required.
Convert WebM to M4A
Drop your WebM file here to convert it instantly
Drag & drop your .webm file here, or click to browse
Convert to M4A instantly
WebM vs M4A: Format Comparison
Key differences between the two formats
| Feature | WebM | M4A |
|---|---|---|
| Type | Open web video container | MPEG-4 audio-only container |
| Audio codec | Vorbis or Opus (open formats) | AAC (Apple's preferred codec) |
| Developer | Google / WebM Project | Apple / MPEG-4 standard |
| File size | Moderate (video included) | Small — AAC audio only |
| Apple compatibility | Limited — not native on iOS/macOS | Native on all Apple platforms |
| Metadata | Vorbis comment tags | iTunes metadata: artist, album, cover art |
| Use case | Browser-based video streaming | Apple Music library, iPhone playback, GarageBand |
When to Convert
Common scenarios where this conversion is useful
Import web video audio into Apple Music
WebM files are not natively recognized by Apple Music or iTunes. Convert the audio to M4A so you can import it directly into your Apple Music library with proper metadata and album art support.
Listen to web recordings on iPhone or iPad
WebM video does not play natively on iOS. Extract the audio as M4A to enjoy web-sourced recordings on your iPhone or iPad through the Music app, Files app, or any M4A-compatible player.
Prepare audio from browser screen recordings for GarageBand
If you record your browser screen in WebM format, extract the audio as M4A to import it directly into GarageBand on Mac or iPad. M4A integrates seamlessly with GarageBand's media browser.
Create iPhone ringtones from web video clips
Extract audio from a WebM video clip as M4A, then rename the file to .m4r and import it into iTunes. Sync to your iPhone to use the clip as a custom ringtone — ensure it is under 40 seconds.
Convert downloaded web video audio for offline Apple listening
Browser-downloaded WebM files from various web platforms need conversion before they work on Apple devices. Extract the audio to M4A for a widely compatible, compact file that syncs to all your Apple devices.
How to Convert WebM to M4A
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1
Upload your WebM file
Drag and drop your .webm file onto the converter or click to browse and select it. Files up to 500MB are supported.
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2
Server-side M4A conversion
Your file is uploaded over HTTPS and FFmpeg decodes the Vorbis or Opus audio from the WebM container, re-encoding it as AAC and wrapping it in an M4A container. Processing takes just seconds.
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3
Download your M4A file
Click Download to save the .m4a file. The original WebM and converted M4A are automatically deleted from our servers immediately after download.
Frequently Asked Questions
WebM is an open Google format using VP8/VP9 video and Vorbis/Opus audio. Apple does not support WebM natively on iOS, macOS, or in iTunes/Apple Music. Converting the audio to M4A (AAC) makes it fully compatible with all Apple platforms.
Yes. WebM uses Vorbis or Opus (both lossy), and M4A uses AAC (also lossy). Converting between lossy codecs re-encodes the audio, introducing a small additional quality reduction. At high target bitrates this difference is minimal.
FFmpeg encodes the AAC audio at a high quality bitrate, typically 192 kbps or higher. This is sufficient for music, speech, and podcasts at excellent perceptual quality.
Basic metadata such as title and artist from the WebM Vorbis tags may be transferred to M4A iTunes tags. You can verify and edit metadata after conversion using iTunes or a tag editor like Mp3tag.
Yes. Rename the .m4a to .m4r, import it into iTunes, and sync it to your iPhone via the Tones section. Ensure the audio is under 40 seconds for it to be recognized as a ringtone.
Yes. M4A supports Apple chapter markers, which are used by podcasts and audiobooks. If your WebM contains chapter metadata, it may be preserved in the M4A output.
Yes. ChangeThisFile is completely free. No subscription, no limits, and no signup required. Just upload and convert.
WebM files recorded in a browser via MediaRecorder usually use Opus audio. WebM files from older web content may use Vorbis. FFmpeg handles both automatically.
Yes. Logic Pro supports M4A natively. You can drag M4A files directly into your project. For professional production, consider converting to AIFF or WAV instead to work with uncompressed audio.
Yes. All uploads are encrypted via HTTPS and files are automatically deleted from our servers after conversion. We do not store, access, or share your files.
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