AIFF to MP3 Converter Online
Convert Apple AIFF files to MP3 right in your browser. Shrink a lossless Logic or GarageBand bounce to a compact MP3 — roughly a tenth the size, no sign-up, and your file is never uploaded.
How to Convert AIFF to MP3
No account, no upload — three steps on your own device.
Drop Your AIFF
Drag in a .aif, .aiff, or .aifc file — a Logic bounce, a GarageBand render, a CD rip — up to 200 MB. It decodes right in your browser.
Pick Your Settings
Choose a bitrate from 64 to 320 kbps (192 is the sweet spot), and adjust sample rate or channels if you need to.
Convert & Download
Hit convert and the MP3 downloads instantly — about a tenth the size, plays everywhere, no watermark.
Why Notevibes AIFF to MP3
Built for macOS exports that need to travel off the Mac.
Built for Mac Exports
Drop .aif, .aiff, or .aifc from Logic Pro, GarageBand, Pro Tools, or macOS — the uncompressed format Apple has used since the 1980s decodes right in your browser.
About 10x Smaller
AIFF is uncompressed, so files are huge. Converting shrinks a 40 MB AIFF to roughly 4 MB, and a full album from ~400 MB to ~40 MB.
Never Uploaded
The AIFF is decoded and re-encoded on your own device. Nothing is sent to a server — there is nothing for us to store or delete.
Real MP3 Controls
Choose any bitrate from 64 to 320 kbps, resample to 48, 44.1, or 22 kHz, and switch between stereo and mono before you convert.
Instant Download
No queue, no email link. The MP3 downloads the moment encoding finishes, with a filename you can edit first.
Free, Anywhere
No watermark, no sign-up, no daily caps. Works in Chrome, Firefox, Safari, and Edge on desktop and mobile.
No Upload — Your Sessions Stay in the Studio
Unreleased mixes, client bounces, private recordings: none of it should sit on a converter site’s server. Here the entire decode-to-MP3 pass happens on your own machine, so there is no copy anywhere else.
No Upload
Decode and re-encode run on your device
No Account
Drop a file and convert immediately
Works Offline
Once the page loads, no connection needed
When AIFF to MP3 Matters
AIFF is great inside the Mac — MP3 is what the rest of the world plays.
Logic Pro Exports
Logic bounces AIFF by default — shrink them to MP3 for client previews
GarageBand Recordings
GarageBand renders to AIFF — convert before uploading or emailing
macOS Voice Memos
Older macOS voice memos saved as AIFF get huge — compress to share
CD Audio Rips
AIFF rips from Mac CD tools are uncompressed — MP3 fits ten times more on a phone
Pro Tools Archives
Pro Tools session audio is stored as AIFF — MP3 copies are easier to review offline
Sharing With Non-Mac Users
Windows and Android handle AIFF poorly — MP3 plays everywhere without fuss
The Studio Format That’s Too Big to Leave the Mac
Bounce a track in Logic, render a project in GarageBand, or rip a CD on a Mac and you get an AIFF — Apple’s uncompressed format from the 1980s. It’s pristine and it’s enormous: a single song runs 40 MB, an album pushes 400. Try to email it, upload it, or play it on a Windows or Android phone and you hit a wall. The usual fix is a converter site that wants your unreleased bounce uploaded, queued, and stored on hardware you’ll never see.
A compact MP3 in three clicks
This converter keeps the file on your machine. Drop the AIFF, choose any bitrate from 64 to 320 kbps, and the MP3 downloads immediately — roughly a tenth the size of the original. It uses the decoder already built into your browser, so old session exports and CD rips convert without anything installed.
Your masters never leave the studio
Demos, client work, and half-finished mixes are exactly the files you don’t want cached on someone’s server. Here the whole conversion runs on the computer in front of you — the browser does the decoding itself, and the MP3 is written straight to your downloads folder. The AIFF master on your Mac stays untouched, and you can drop offline after the page loads and it still works.
One honest note about quality
AIFF is lossless and MP3 is lossy, so the conversion gives up some detail — that’s the trade for a file a tenth the size. At 192 kbps and up most people can’t hear it on phones, laptops, or car stereos. Keep the AIFF for archival and mastering; use the MP3 copies for sharing and everyday listening.
Where to go next
Coming from an Apple M4A file instead? Use M4A to MP3. Need a lossless working copy rather than a small one? Try M4A to WAV. For any other format, the general audio converter handles them all — and if the bounce needs trimming or cleanup, open it in the online audio editor.
Need to Do More Than Convert?
The full Notevibes editor trims, mixes, cleans up, and applies AI tools to your audio — then exports to MP3 or WAV.
Free to try · No credit card required
Related Audio Tools
More free AI audio tools from Notevibes — same engine, no sign-up.
AIFF to MP3 FAQ
How do I convert AIFF to MP3 for free?
Drop your .aif, .aiff, or .aifc file onto the converter above, pick a bitrate, and click Convert to MP3. The MP3 downloads instantly — no sign-up, no upload, no watermark. Everything runs in your browser.
What is an AIFF file?
AIFF (Audio Interchange File Format) is Apple's uncompressed, lossless audio format, developed in the 1980s and widely used on macOS. It stores audio bit-for-bit like WAV does, which makes AIFF files large but high quality. Logic Pro, GarageBand, and Pro Tools all export AIFF by default.
Why convert AIFF to MP3?
AIFF is uncompressed, so files are roughly 10 times larger than an MP3 of the same audio. Converting to a 192 kbps MP3 shrinks a 40 MB AIFF down to about 4 MB — easy to share, upload, or load onto a phone. MP3 also plays on every device, while non-Mac systems sometimes struggle with AIFF.
Does quality drop when converting AIFF to MP3?
Yes — this is a lossless-to-lossy conversion, so some audio data is discarded. At 192 kbps and above most listeners can't hear the difference on phones, laptops, or car stereos, but it isn't bit-perfect. Keep your AIFF masters for archival or mastering and use the MP3 copies for sharing and daily listening.
What bitrate is the MP3 output?
You choose — anywhere from 64 to 320 kbps, with 192 kbps as the default. 192 is a safe balance of size and quality; go to 256 or 320 for music you care about, or lower for spoken audio that needs to stay small.
Can I convert AIFF exported from Logic Pro or GarageBand?
Yes. AIFF files exported from Logic Pro, GarageBand, Pro Tools, macOS voice memos, or any other Mac app all work the same way. Drop the file into the converter and download the MP3 — the original AIFF on your Mac is untouched.
Is my AIFF file uploaded to a server?
No. The converter decodes and re-encodes your file entirely in your browser using the Web Audio API. It never leaves your device, so there's nothing for us to store, scan, or delete.
Is it really free?
Yes — no sign-up, no watermark, no daily limits. The only cap is 200 MB per file.