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WMA to AIFF Converter

Convert WMA files to AIFF format online for free. No installation or registration required.

Quick Answer: How to Convert WMA to AIFF

WMA is Microsoft's Windows Media Audio family of codecs, while AIFF is Apple's uncompressed audio format, the Mac-side counterpart to WAV. Converting WMA to AIFF wraps or re-encodes your audio into the AIFF structure, but be aware: quality lost when the WMA was created stays lost — a AIFF made from a lossy source is a perfect copy of an imperfect original. Run it free at practicalwebtools.com/convert/audio/wma-to-aiff: drop in your WMA, adjust settings if you like, and download the AIFF — no signup, no upload, everything stays on your device.

WMA vs AIFF: Which One and Why

WMA is Microsoft's Windows Media Audio family of codecs, launched by Microsoft in 1999 to compete with MP3 and later AAC. AIFF is Apple's uncompressed audio format, the Mac-side counterpart to WAV, designed by Apple in 1988 from Electronic Arts' IFF standard. People reach for WMA mainly for legacy Windows media libraries, some voice recorders, while AIFF is the usual choice for professional music production on macOS, DJ software libraries, sample packs. WMA's headline strength: good quality at low bitrates (64–128 kbps). AIFF's: bit-perfect quality. On the other side of the ledger, WMA limitation: near-zero support on Apple devices — and AIFF limitation: same huge file sizes as WAV.

How to Convert WMA to AIFF Online

  1. 1

    Add your WMA file: Drag and drop it into the converter, or click to browse. WMA files up to the size limit are accepted, and nothing is uploaded — processing runs locally in your browser.

  2. 2

    Set AIFF options: The converter re-encodes into AIFF, which is uncompressed PCM — same size as WAV at equal settings. Set quality to maximum since you're going lossless — no reason to trim bits you already have.

  3. 3

    Download the AIFF: Conversion runs on your device. When it completes, download the AIFF file — repeat for as many files as you need, free and unlimited.

Key Facts

  • WMA: launched by Microsoft in 1999 to compete with MP3 and later AAC, lossy (Standard and Pro variants); WMA Lossless also exists.
  • AIFF: designed by Apple in 1988 from Electronic Arts' IFF standard, uncompressed PCM — same size as WAV at equal settings.
  • Converting WMA → AIFF cannot restore what the WMA encoding already discarded — the AIFF is a faithful copy of the WMA, not of the original recording.
  • WMA strength: good quality at low bitrates (64–128 kbps).
  • AIFF strength: bit-perfect quality.
  • WMA limitation to know: near-zero support on Apple devices.
  • AIFF limitation to know: same huge file sizes as WAV.
  • Under the hood: AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected

Format Background

WMA

WMA — launched by Microsoft in 1999 to compete with MP3 and later AAC. WMA Pro supports high-resolution multichannel audio, but most hardware labeled "WMA" decodes only the original 1999 codec

AIFF

AIFF — designed by Apple in 1988 from Electronic Arts' IFF standard. AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected

Frequently Asked Questions

Will converting WMA to AIFF lose quality?

The AIFF output preserves everything present in your WMA file — but WMA is lossy (Standard and Pro variants); WMA Lossless also exists, so information discarded when that file was made is gone for good. You get a bit-perfect copy of what you have, not a restoration of the original recording.

Are my files uploaded anywhere during WMA → AIFF conversion?

No. This converter runs on WebAssembly inside your browser — your WMA file is read from disk, processed by your device's CPU, and the AIFF is written back locally. There is no server upload at any point, which also means no size-based throttling or waiting in queue.

Does converting WMA to AIFF restore lost quality?

No — and this trips up a lot of people. WMA is lossy (Standard and Pro variants); WMA Lossless also exists: the data it discarded at creation time cannot be reconstructed by any converter. A AIFF from a WMA source sounds exactly as good as the WMA, no better. The reasons to convert anyway are compatibility, editing headroom, and future-proofing — not restoration.

Is AIFF still a current format in 2026?

Logic Pro, Ableton, Native Instruments, macOS Core Audio. AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected

Do I need to install anything to convert WMA to AIFF?

No installation. The converter is a web page — open it in any modern browser on Windows, macOS, Linux, iOS, or Android. WMA decoding and AIFF encoding both run via WebAssembly at native-adjacent speed.

Related Converters

WMA to MP3WMA to WAVWMA to OGGWMA to AACMP3 to AIFFWAV to AIFFOGG to AIFFAAC to AIFF

Further reading

Guides and explainers on the Practical Web Tools blog cover audio and video formats in depth — or browse every audio converters pair from the hub.