Convert your .aac files to .wma format online for free. No software to install. Fast, secure, and easy.
Pro account required for audio & video
Drag and drop your .aac file or click to browse.
Select WMA as your output format.
Click Convert and download your .wma file.
Converting between AAC and WMA changes the codec used for compression. WMA may offer better compatibility with your specific devices or platform.
AAC (Advanced Audio Coding, introduced in 1997) uses Lossy (MDCT-based with TNS and PNS tools) compression. WMA (Windows Media Audio, introduced in 1999) uses Lossy (modified DCT) or Lossless compression. AAC browser support: Universal. WMA browser support: Limited (Edge on Windows only).
Converting from AAC (lossy) to WMA (lossless) will not recover quality that was lost during the original AAC compression. The conversion preserves the current state of the file without further degradation. The resulting WMA file will be larger than the AAC original.
Typical AAC file size: A 4-minute song at 256 kbps AAC-LC: ~7.3 MB. Typical WMA file size: A 4-minute song at 192 kbps: ~5.5 MB.
When converting between two lossy formats, use the highest practical bitrate for the output to minimize the quality impact of double compression. If possible, convert from the original lossless source instead of from a previously compressed file.
Convert AAC to WMA with 3 free conversions per day. No hidden fees.
Create a free account in 10 seconds and start converting immediately. No credit card required.
Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion.
Convert files from any device — desktop, tablet, or phone. No software to install, works in any modern browser.
SquishConvert supports over 358 file conversion combinations across images, documents, audio, and video.
Your converted .wma file maintains the best possible quality. No unnecessary compression or quality loss.
Audio conversion requires a Pro account. See pricing — starting at $4.99/month
You get 3 free conversions per day. Audio conversions require a Pro account.
Most files convert in under 10 seconds. Larger files may take a bit longer depending on size.
Yes. Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion. We never store your files.
Currently, SquishConvert converts one file at a time. Batch conversion is coming soon — stay tuned!
Free users can convert files up to 10 MB. Pro users can convert files up to 500 MB.