Convert to MP3
Turn any audio or video file into a universally compatible MP3.
M4A to MP3
M4A→ MP3
Convert iPhone voice memos and iTunes files to universal MP3.
WAV to MP3
WAV→ MP3
Compress lossless WAV recordings to shareable MP3 files.
OGG to MP3
OGG→ MP3
Turn OGG Vorbis files into widely compatible MP3 audio.
FLAC to MP3
FLAC→ MP3
Export FLAC archives to lightweight MP3 for everyday playback.
MP4 to MP3
MP4→ MP3
Extract the audio track from MP4 video files as an MP3.
MOV to MP3
MOV→ MP3
Rip audio from QuickTime MOV recordings and screen captures.
AAC to MP3
AAC→ MP3
Convert AAC audio — common on Apple devices — to MP3.
WMA to MP3
WMA→ MP3
Rescue old Windows Media Audio files into playable MP3.
AIFF to MP3
AIFF→ MP3
Convert Apple lossless AIFF masters to compact MP3.
Opus to MP3
Opus→ MP3
Convert Opus voice and streaming audio to MP3.
Convert from MP3
Need a different format? Start from your MP3 and convert to WAV, FLAC, OGG, and more.
MP3 to WAV
MP3 → WAV
Decode MP3 to uncompressed WAV for editing in a DAW.
MP3 to FLAC
MP3 → FLAC
Wrap MP3 in a lossless container for archiving or re-encoding.
MP3 to OGG
MP3 → OGG
Convert MP3 to OGG Vorbis for open-source and web use.
MP3 to M4A
MP3 → M4A
Convert MP3 to M4A (AAC) for Apple devices and iTunes.
MP3 to AAC
MP3 → AAC
Re-encode MP3 to AAC for streaming and mobile playback.
MP3 to Opus
MP3 → Opus
Convert MP3 to Opus for efficient web and VoIP delivery.
About the MP3 Format
MP3 is the world's most compatible audio format. Born from the MPEG-1 Audio Layer III specification in 1992, it works on every device — phones, cars, smart speakers, laptops — and is accepted by every platform and streaming service.
MP3 achieves small file sizes through perceptual encoding: it analyzes the audio and discards data that human hearing is unlikely to detect. The trade-off is quality. At 128 kbps it is perfectly adequate for voice recordings and podcasts. At 192 kbps the difference from the original is minimal for music. At 320 kbps it is near-transparent to most listeners.
The main downside: MP3 is lossy. Once audio is compressed, the discarded data cannot be recovered. Best practice is to keep your lossless originals — WAV or FLAC — and export to MP3 only for distribution, sharing, or upload.
Why no-upload MP3 conversion matters
Most online converters work by uploading your file to their servers, converting it, then sending it back. That means your music drafts, voice memos, podcast recordings, and unreleased tracks pass through infrastructure you do not control — and may be stored or logged. AudioUtils is different: FFmpeg runs as WebAssembly entirely inside your browser. Your files are processed locally and never leave your device. No server logs, no third-party storage, no privacy risk.
Frequently Asked Questions
Is this MP3 converter free?
Yes. AudioUtils is free to use. The free tier outputs a 30-second preview of your converted file. Pro ($9/mo) removes the preview limit so you can convert full-length files of any size.
What formats can I convert to MP3?
You can convert WAV, FLAC, OGG, M4A, AAC, WMA, AIFF, Opus, MP4 video, and MOV video to MP3. All conversions run entirely in your browser using FFmpeg WebAssembly.
Does converting to MP3 reduce quality?
Yes. MP3 is a lossy format — it discards audio data to reduce file size. At 192 kbps the difference from the original is minimal for music. At 128 kbps it is fine for voice and spoken word. If you need to preserve quality, keep your lossless originals (WAV or FLAC) and only export to MP3 for distribution.
Can I convert MP3 to other formats?
Yes. AudioUtils can convert MP3 to WAV, FLAC, OGG, M4A, AAC, and Opus. Use the 'Convert from MP3' section below to find the right converter.
Will my music files be kept private?
Yes. AudioUtils uses FFmpeg compiled to WebAssembly, which runs entirely inside your browser. Your files are never uploaded to any server — they never leave your device. There are no server logs and no third-party storage.