How to convert audio files
- 1
Click Choose files or drop audio or video files — MP3, WAV, M4A, AAC, OGG, FLAC, OPUS, WMA, AIFF, AMR, MP4, MOV and more are accepted.
- 2
Choose the Output format — MP3, WAV, M4A (AAC), OGG (Vorbis), FLAC or OPUS.
- 3
Click Convert, then download each file or everything with Download all (ZIP).
Which format for which use?
| Format | Type | Best for |
|---|---|---|
| MP3 | Lossy | Playing anywhere: phones, cars, websites, any player |
| M4A (AAC) | Lossy | iPhone, iTunes/Music, good quality at small sizes |
| OGG (Vorbis) | Lossy | Games, Linux, open-source projects |
| OPUS | Lossy | Voice, podcasts and streaming at very low bitrates |
| FLAC | Lossless (compressed) | Archiving music, hi-fi listening |
| WAV | Lossless (uncompressed) | Editing, production, hardware, CDs |
Lossy or lossless?
Lossy formats (MP3, AAC, Vorbis, Opus) remove sound the ear barely perceives to make files small. Lossless formats (FLAC, WAV) keep every sample. Three rules follow from that:
- Converting lossless → lossy saves a lot of space with little audible difference at good bitrates.
- Converting lossy → lossless never improves the sound; it’s useful only when a tool requires WAV or FLAC, or to edit without adding another round of compression.
- Avoid chains of lossy conversions (MP3 → OGG → M4A): each step loses a little more. Convert from the best source you have.
Input formats
The converter reads almost any audio file: MP3, WAV, M4A, AAC, OGG/OGA, FLAC, OPUS, WMA, AIFF/AIF and AMR (common for old phone recordings). It also accepts videos — MP4, MOV, WebM, MKV, AVI, WMV, 3GP and more — and extracts their sound.
Specialised tools
For the most common conversions, dedicated pages offer a bitrate choice:
- WAV to MP3, M4A to MP3, OGG to MP3, FLAC to MP3
- MP3 to WAV for editors and hardware
- Trim audio to keep only part of a recording
Private by design
Online audio converters usually upload your files to a server. TurboConvert runs FFmpeg — the open-source engine behind countless media tools — compiled to WebAssembly in your browser. Your recordings, interviews and unreleased tracks never leave your device, and there’s no upload time to wait for.
Common problems
- The converted file sounds no better. Converting from MP3 to WAV or FLAC can’t add back what MP3 removed. Use the original recording or a lossless source when you have one.
- The file won’t play on an iPhone. OGG and OPUS have limited support in Apple’s default apps; choose M4A (AAC) or MP3 for Apple devices.
- An old phone recording (.amr) is unreadable. AMR is accepted here — convert it to MP3 to play it anywhere.