AIFF Converter

How to Convert AIFF to Any Format

1. Upload Your AIFF File: Drag and drop your audio or click "Add Files". The converter accepts both .aiff and .aif (they are the same format) as well as the compressed AIFF-C .aifc variant. Batch is supported — drop in several files and each one converts in parallel.
2. Pick an Output Format and Quality Preset: Set the Audio File Extension to your target — MP3, WAV, FLAC, AAC, M4A, OGG, Opus, WMA, and more. The default Quality Preset is "Very High (Recommended)". For lossy targets you can switch to Constant Bitrate (128 / 192 / 256 / 320 kbps), Variable Bitrate for smaller files at equal quality, Custom Bitrate to type an exact value, or Specific file size to cap the output at an exact MB target.
3. Adjust Sample Rate, Channels, or Trim (Optional): Under Audio Sample Rate keep the original or downsample (8 kHz–48 kHz); set Audio Channel to keep the source, force Mono, or expand to Stereo; and use Trim to enter a start time and duration so you export only the section you need.
4. Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared.

Popular AIFF Conversions

• AIFF to MP3 — shrink CD-quality audio ~10x for phones, players, and sharing
• AIFF to WAV — the Windows-side uncompressed equivalent for cross-platform DAWs
• AIFF to FLAC — lossless archive at roughly half the size, with tag support
• AIFF to AAC — efficient lossy audio for the Apple ecosystem and streaming
• AIFF to M4A — AAC inside an MP4 container for iTunes and Apple Music
• AIFF to OGG — royalty-free lossy audio for open-source players and game engines
• AIFF to Opus — the most efficient modern lossy codec for voice and low-bitrate music

Why Convert an AIFF File?

AIFF (Audio Interchange File Format) was developed by Apple in 1988, based on Electronic Arts' Interchange File Format (IFF) used on the Amiga. It stores uncompressed PCM audio — the same bit-for-bit samples a CD holds — which makes it a studio-grade master format but a heavy one. At CD quality (44.1 kHz, 16-bit, stereo) an AIFF file runs about 10 MB per minute, so a single album can fill a gigabyte. AIFF is essentially the Mac counterpart to Windows' WAV; the main technical difference is byte order (AIFF is big-endian, WAV is little-endian), which is why some non-Apple tools that read WAV cleanly stumble on AIFF.

People convert AIFF for three recurring reasons:

• Size and portability. Uncompressed AIFF is overkill for listening on a phone, uploading to a cloud library, or emailing. Converting to MP3 or AAC drops the file roughly 10x with quality that's transparent at 256–320 kbps for most ears, while FLAC keeps it mathematically lossless at about half the size.
• Compatibility. AIFF is well supported on macOS, iOS, and pro audio tools, but many Windows apps, web players, car stereos, and Android devices prefer WAV, MP3, or FLAC. Converting removes the "unsupported format" wall without re-mastering anything.
• Archival with metadata. FLAC and M4A carry rich tags (title, artist, album art) that a bare AIFF often lacks, so converting is a common step when ripping a CD-quality master into a tagged music library.

Note that .aif and .aiff are identical — only the extension length differs — while AIFF-C (.aifc) is the compressed sibling that can hold codecs other than raw PCM.

AIFF vs. Its Common Conversion Targets

Frequently Asked Questions

Will I lose quality converting AIFF to FLAC?

No. FLAC uses lossless compression, so when it is decoded the waveform is bit-for-bit identical to the original AIFF PCM — there is no measurable quality difference. The only thing that shrinks is the file size, typically to about half. That makes FLAC the right target when you want to archive a CD-quality master in a smaller, fully-tagged file you can later convert back to AIFF or WAV without any generational loss. Converting to MP3 or AAC, by contrast, is lossy and permanently discards some data.

What is the difference between AIFF and WAV?

They are technically near-twins: both store uncompressed PCM audio at the same sample rates and bit depths, so a CD-quality AIFF and WAV sound identical and take roughly the same space (~10 MB per minute in stereo). The core difference is byte order — AIFF is big-endian and originated on the Mac, WAV is little-endian and originated on Windows. In practice that means AIFF tends to be the smoother choice in Logic Pro and macOS tools, while WAV is the safer pick for Windows apps and broad cross-platform compatibility. Converting AIFF to WAV re-wraps the same samples for the Windows side.

Is .aif the same as .aiff?

Yes. .aif and .aiff are the same Audio Interchange File Format — the shorter .aif extension exists only because some older systems limited extensions to three characters. There is no quality or structural difference between them, and our converter accepts both interchangeably. The separate .aifc extension is different: that is AIFF-C, the compressed variant of AIFF that can store codecs other than raw PCM.

What bitrate should I use when converting AIFF to MP3?

For music you want to sound transparent, choose 256 or 320 kbps Constant Bitrate — at that range most listeners cannot distinguish the MP3 from the lossless AIFF source. 192 kbps is a reasonable middle ground that saves space, and 128 kbps is fine for spoken-word, podcasts, or background audio where size matters more than fidelity. If you would rather target an exact file size — say to fit an upload limit — switch to Specific file size and the encoder picks the bitrate to match. The dedicated AIFF to MP3 page covers the bitrate settings in more detail.

Why are my AIFF files so large?

Because AIFF stores uncompressed PCM — it keeps every audio sample at full resolution with no compression at all. At CD quality (44.1 kHz, 16-bit, stereo) that works out to about 10 MB per minute, so an hour of audio is roughly 600 MB. That size is exactly what makes AIFF a good editing and mastering format (nothing is thrown away), but it is wasteful for listening or storage. Converting to FLAC halves the size losslessly, and converting to MP3, AAC, or Opus shrinks it by 10x or more at the cost of some inaudible-to-most data.

Does converting AIFF keep my song titles and album art?

It depends on the target. Bare AIFF often carries little or no metadata, so there may be nothing to preserve in the first place — but where tags do exist, lossy and lossless targets that support metadata (MP3 via ID3, FLAC via Vorbis comments, M4A/AAC) can carry title, artist, album, and cover art forward. WAV, like AIFF, has weak tag support, so a conversion to WAV is best when you only care about the audio. If building a tagged library is the goal, AIFF to FLAC or AIFF to M4A are the better targets.

Is it safe to upload my AIFF files here?

Yes. Files are uploaded over an encrypted (TLS) connection, processed on our servers, and deleted automatically after a few hours — there is no sign-up, no watermark, and your audio is never shared or made public. In our testing, a typical 3-minute CD-quality AIFF (about 30 MB) uploads and converts to a 320 kbps MP3 in a few seconds on a normal broadband connection; the main variable on very large lossless files is upload time rather than processing speed.