Convert MP3 to AIFF

MP3 to AIFF converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

About formats

MP3

MP3 (MPEG-1 Audio Layer III) is the most popular lossy audio compression format, designed by the Moving Picture Experts Group. It drastically reduces file size while preserving near-CD quality by discarding sounds that are inaudible to most listeners. MP3 is supported by virtually every audio player, device, and platform ever made.

Developer
ISO/IEC (MPEG)
Initial release
1993
Compression
Lossy
Color depth
up to 24-bit
Transparency
No
Animation
No

Best for

  • Playing music on any device
  • Sharing audio online
  • Podcast distribution
  • Portable music libraries
  • Universal audio compatibility

Pros

  • +Supported by virtually every audio player
  • +Drastic file-size reduction from source
  • +Adjustable bitrate for quality/size balance
  • +Open and widely documented

Cons

  • −Lossy compression discards audio data
  • −Lower quality than AAC at same bitrate
  • −No multi-track support
  • −Generational loss on re-encoding

AIFF

AIFF (Audio Interchange File Format) is an uncompressed audio container developed by Apple, based on the IFF structure. Like WAV it preserves full audio fidelity and is widely used in professional audio production on macOS, being the default format for Logic Pro and other DAWs.

Developer
Apple
Initial release
1988
Compression
Uncompressed
Color depth
up to 32-bit float
Transparency
No
Animation
No

Best for

  • Professional audio production on macOS
  • Logic Pro and DAW workflows
  • Studio recording and mastering
  • High-fidelity audio archival
  • Apple-ecosystem audio editing

Pros

  • +Full uncompressed audio fidelity
  • +Default format for Logic Pro and macOS DAWs
  • +Supports up to 32-bit float depth
  • +Multi-track capable

Cons

  • −Very large file sizes
  • −No compression by default
  • −Less common outside macOS
  • −Not practical for streaming

How to convert MP3 to AIFF

  1. 1

    Select MP3 files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.

  2. 2

    Choose aiff — or any other format you need as a result (more than 200 formats supported).

  3. 3

    Let the file convert, then download your aiff file right away.

MP3 vs AIFF

PropertyMP3AIFF
CompressionLossyUncompressed
Color depthup to 24-bitup to 32-bit float
Multi-trackNoYes
DRM supportNoNo
Open formatYesNo

When to use MP3 vs AIFF

MP3

  • Playing music on any device
  • Sharing audio online
  • Podcast distribution
  • Portable music libraries
  • Universal audio compatibility

AIFF

  • Professional audio production on macOS
  • Logic Pro and DAW workflows
  • Studio recording and mastering
  • High-fidelity audio archival
  • Apple-ecosystem audio editing

Use cases for MP3 → AIFF

  • Playing music on any device
  • Sharing audio online
  • Podcast distribution
  • Portable music libraries
  • Universal audio compatibility
  • Professional audio production on macOS
  • Logic Pro and DAW workflows
  • Studio recording and mastering
  • High-fidelity audio archival
  • Apple-ecosystem audio editing

Frequently Asked Questions

Is converting MP3 to AIFF free?
Yes. This MP3 → AIFF converter runs entirely in your browser and is completely free — no account, no credits, no watermark.
Which devices and platforms can I use to convert MP3 to AIFF?
Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.
Are my MP3 files uploaded to a server?
No. Files never leave your device. The entire MP3 → AIFF conversion runs locally in your browser, so your data stays private.
Can I convert multiple MP3 files at once?
Yes — batch conversion is supported. Add as many MP3 files as you like and convert them to AIFF in one pass, then download the results together.
What is the maximum file size?
There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.
Will converting MP3 to AIFF lose quality?
No. AIFF is a lossless format (or used in a lossless mode here), so the original data from your MP3 file is preserved bit-for-bit in the converted result.
Does AIFF support transparency?
No — AIFF has no alpha channel. Transparent areas of your MP3 file will be filled with a solid background colour in the converted file.
How will the file size change after converting MP3 to AIFF?
Both formats use comparable compression, so the AIFF output will be similar in size to your MP3 file — typically within 10–20% of each other.

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FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Convert MP3 to AIFF Quality Rating

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