CONVERT AIFF → WMA (AIFF to WMA)
Fast, secure AIFF to WMA conversion. No registration required.
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HOW TO CONVERT AIFF → WMA
Provide the audio file
Drag the AIFF onto the uploader. Files up to 25 MB run on the free tier without registration; paid plans go up to 2 GB.
ffmpeg handles the conversion
Our ffmpeg-based pipeline reads sample rate and channel layout, then writes a matching WMA with ID3 tags intact.
Save the output
Click to download the WMA. Batch uploads are bundled into a ZIP for single-click retrieval.
AIFF is Apple's uncompressed Audio Interchange File Format, the macOS equivalent of WAV. That is why users land on this page looking for a WMA copy. A AIFF to WMA conversion is typically about compatibility: some players refuse AIFF, many accept WMA. The audio payload makes the round trip with minimal artefacts when bitrate is left at sensible defaults. Drop a AIFF file into the uploader and the WMA comes back in seconds. A quick refresher — AIFF is Apple's uncompressed Audio Interchange File Format, the macOS equivalent of WAV. By contrast, WMA is Microsoft's proprietary audio codec, historically tied to Windows Media Player.
Why convert AIFF to WMA
Moving from AIFF to WMA usually buys compatibility or a friendlier file size. For spoken-word content the difference is inaudible; for high-resolution music pick the highest bitrate the WMA codec supports to avoid compounding compression.
AIFF vs WMA — Technical specifications
Side-by-side comparison of the technical details.
AIFF
- MIME types
- audio/aiff, audio/x-aiff
- Extensions
- .aif, .aiff, .aifc
- Byte order
- Big-endian
- Max bit depth
- 32 bits (PCM or float)
- Max sample rate
- 192 kHz (practical); unlimited (spec)
- MIME Type
- audio/aiff
- Extension
- .aiff
- Category
- Audio Files
- Full Name
- AIFF Audio
- Conversion Engine
- FFMPEG
WMA
- MIME Type
- audio/x-ms-wma
- Extension
- .wma
- Category
- Audio Files
- Full Name
- Windows Media Audio
- Conversion Engine
- FFMPEG
- MIME type
- audio/x-ms-wma
- Container
- ASF (Advanced Systems Format)
- Variants
- WMA Standard, WMA Pro, WMA Lossless, WMA Voice
- Max bitrate
- 768 kbps (WMA Pro)
| Specification | AIFF | WMA |
|---|---|---|
| MIME types | audio/aiff, audio/x-aiff | — |
| Extensions | .aif, .aiff, .aifc | — |
| Byte order | Big-endian | — |
| Max bit depth | 32 bits (PCM or float) | — |
| Max sample rate | 192 kHz (practical); unlimited (spec) | — |
| MIME Type | audio/aiff | audio/x-ms-wma |
| Extension | .aiff | .wma |
| Category | Audio Files | Audio Files |
| Full Name | AIFF Audio | Windows Media Audio |
| Conversion Engine | FFMPEG | FFMPEG |
| MIME type | — | audio/x-ms-wma |
| Container | — | ASF (Advanced Systems Format) |
| Variants | — | WMA Standard, WMA Pro, WMA Lossless, WMA Voice |
| Max bitrate | — | 768 kbps (WMA Pro) |
AIFF vs WMA — Strengths and limitations
What each format does best, and where it falls short.
AIFF Strengths
- Lossless and uncompressed — bit-exact audio reproduction.
- Native to macOS and all Apple Pro Audio apps.
- Simple structure — trivially parsed by audio libraries.
- Supports up to 32-bit float, 192 kHz, and multi-channel audio.
- Rich metadata via named chunks (annotations, markers, MIDI).
Limitations
- Enormous file sizes — 10 MB per minute at CD quality.
- No built-in compression — use FLAC for lossless with smaller files.
- Big-endian byte order confuses tools written on little-endian hardware.
WMA Strengths
- Good quality at low bitrates (32-64 kbps) — outperformed MP3 in that range.
- Native playback on every Windows version 2000 through 10.
- Lossless variant available (WMA Lossless) for archiving.
- Supports multichannel 5.1 surround audio.
Limitations
- Proprietary — poor support outside Windows and Windows Media Player.
- DRM variants made files brittle — many purchased tracks became unplayable when stores shut down.
- Ecosystem abandoned — no modern editors, hardware decoders, or streaming services use WMA.
Quality & Compatibility
Sample rate, channel layout and bit depth are preserved by default: a 44.1 kHz stereo AIFF becomes a 44.1 kHz stereo WMA. Metadata — title, artist, album, cover art — travels where both formats support it. Protected DRM content cannot be converted legally and is rejected.
Tips for Best Results
- Check the podcast host specification before choosing bitrate — some mandate CBR 64 kbps, others accept VBR up to 192 kbps.
- Preserve ID3 tags by editing them before conversion; Mp3tag and MusicBrainz Picard handle round-tripping cleanly.
- If the AIFF is 24-bit studio audio, the WMA at 16-bit is sufficient for listening; higher is wasted on consumer playback gear.
Frequently Asked Questions
Lossy-to-lossy conversions (most combinations) re-compress the audio, which technically introduces some loss. At a 192 kbps or higher target it is inaudible on normal equipment. Lossy-to-lossless conversions freeze the existing quality but cannot improve it; lossless-to-lossy transcodes are only as good as the target bitrate you choose.
For voice content (podcasts, audiobooks, lectures) 128 kbps is indistinguishable from higher bitrates. For music, 192-256 kbps covers most listening; 320 kbps is the ceiling for WMA and the right choice for audio you plan to edit further. Above that, prefer a lossless target instead.
Yes. Title, artist, album, year and cover art travel from the AIFF container to the WMA container automatically where both formats support them. If a tag field has no WMA equivalent, it is dropped silently. Use any tag editor (Mp3tag, MusicBrainz Picard) to fine-tune afterwards.
AIFF Audio
Source formatAIFF is Apple's uncompressed audio format, equivalent to WAV in the macOS ecosystem. It stores CD-quality PCM audio and is widely used in professional audio production on Apple hardware.
Windows Media Audio
Target formatWMA is a proprietary Microsoft audio format from the Windows Media framework. Once common in the Windows ecosystem, it has been largely replaced by AAC and MP3 for general use.
Going the other way? Convert WMA back to AIFF with the same engine.
Common Use Cases
Share across platforms
Send WMA files to anyone without worrying about whether they have the right software for AIFF.
Embed in documents
Drop WMA output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
WMA often produces smaller files than AIFF for web, email and storage.
Archive & future-proof
Store in a widely-supported format that will still open on future operating systems without legacy plugins.
AIFF vs WMA — Typical file sizes
Approximate file sizes for common scenarios.
- 3-min song (CD quality) 30 MB
- 3-min song (24-bit / 96 kHz) 100 MB
- Full album (CD, 10 tracks) 450 MB
- 3-min song (128 kbps) 3 MB
- 3-min song (Lossless) 25-35 MB
- 1-hour talk (64 kbps) 28 MB
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Related comparisons
See these formats side by side to understand which fits your use case best.
Related Guides
AIFF Format: The Complete Guide to Audio Interchange File Format
Everything about AIFF: IFF chunk structure, PCM audio data, AIFF vs AIFF-C vs WAV vs FLAC, Apple ecosystem use, sample rates, bit depth, and how to convert...
Read guide →AIFF: Complete Guide to Audio Interchange File Format
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Read guide →WMA Files: Windows Media Audio Format, Variants, DRM, and Conversion
Complete guide to WMA (Windows Media Audio) files — Standard/Pro/Lossless/Voice variants, DRM issues, player compatibility, FFmpeg conversion to...
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