WMA to AAC - Online Audio Converter

Convert WMA to AAC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.

Convert WMA to AAC

[+] Drop WMA audio here or click to select WMA

Output format

AAC (AAC)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About WMA to AAC

Convert WMA to AAC. WMA is Microsoft's audio codec paired with Windows Media workflows. AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. Container variants (ADTS, MP4) need matching extensions on export..

Why convert WMA to AAC?

Smaller files with AAC lossy compression.
Keep quality where supported.
Private, no upload - runs in your browser.

WMA vs AAC

Codec	WMA v2	AAC
Compression	lossy	lossy
Sample behavior	Quality set by bitrate	Quality set by bitrate
Typical use	WMA is Microsoft's audio codec paired with Windows Media workflows.	AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music.

When not to convert WMA to AAC

Skip AAC for archival masters: lossy compression discards detail, so keep the WMA original.
Keep a master copy: repeated exports stack small losses, so archive WMA before batch AAC shares.

Limits

Starting point: WMA - WMA is Microsoft's audio codec paired with Windows Media workflows. Copy-protected store files cannot be converted; use DRM-free sources. Container variants (ADTS, MP4) need matching extensions on export. Encode AAC (AAC) from WMA at 256k for music or 128k for speech, starting from the master.

How conversion works

Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.

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FAQ

How do I convert WMA to AAC?

Drop your WMA file onto this page, choose quality and codec settings, then click Convert. The result downloads as AAC instantly. All processing runs in your browser.

What codec is used for AAC?

The default codec for AAC is AAC. You can change audio parameters in Advanced mode.

How do you store my files?

We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.