Any file up to 500 MB. Drop several files and they come back as one ZIP. Many image, audio and video conversions run in your browser; anything else is uploaded and removed within the hour.
Easily convert your AAC audio files to WMA format using our online tool. This conversion is essential for users who need to make their files compatible with older Windows-based multimedia software.
AAC is a standard media container known for high efficiency, often used in mobile devices and streaming services, while WMA is a proprietary media container developed by Microsoft specifically for the Windows ecosystem. When you convert from AAC to WMA, the file undergoes a transcoding process where the internal data is re-encoded to fit the WMA structure. Since both formats utilize lossy compression, the conversion process involves decompressing the source data and re-compressing it into the target container, which inherently impacts the original bitstream integrity.
Because both AAC and WMA are lossy formats, re-encoding will lead to generation loss; expect a slight reduction in audio fidelity during the conversion.
We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.
Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.
Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.
A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.
Music, podcasts, voice recordings, and sound effects.
Common extensions: MP3, WAV, FLAC, OGG, AAC, M4A, OPUS
Raster and vector graphics for web, print, and photography.
Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF
Office files, PDFs, ebooks, and plain text.
Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT
Clips, streams, screen recordings, and movies.
Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG
