Online Audio Converter — Free Audio File Converter

Free Online Audio Converter

Convert audio files between all popular formats with this free online audio converter. Upload any audio file — MP3, WAV, FLAC, M4A, OGG, AAC, WMA, AIFF, or OPUS — and convert it to your preferred format in seconds. No software installation needed, no registration required. Our audio converter runs entirely in your browser and on our servers, so it works on any device including phones, tablets, and computers.

Supported Audio Formats

This audio converter supports conversion between the following formats:

MP3 — The most widely used lossy audio format. Best for music sharing and playback on virtually any device. Typical bitrates range from 128 to 320 kbps.
WAV — Uncompressed lossless format used in professional audio production. Large file sizes but zero quality loss.
FLAC — Free Lossless Audio Codec. Compresses audio without any quality loss, typically 50-70% of WAV size.
M4A (AAC) — Apple's preferred lossy format. Generally offers better quality than MP3 at the same bitrate.
OGG Vorbis — Open-source lossy format popular in gaming and web applications. Good quality-to-size ratio.

How to Convert Audio Files Online

Upload your audio file — Drag and drop or click to select a file from your device (up to 200MB). You can also paste a URL.
Choose output format — Select MP3, WAV, FLAC, M4A, or OGG from the dropdown.
Adjust settings — For lossy formats, set the bitrate (higher = better quality, larger file). Optionally change sample rate or switch to mono.
Click "Convert audio!" — The audio converter processes your file in seconds.
Download — Save the converted audio file to your device.

Lossy vs. Lossless Audio Formats

Audio formats fall into two categories: lossy (MP3, M4A, OGG) and lossless (WAV, FLAC). Lossy formats achieve smaller file sizes by discarding audio data that is considered less perceptible to human ears. Lossless formats preserve every bit of the original audio but result in larger files. Use lossy formats for casual listening, sharing, and streaming. Use lossless formats for archiving, editing, and professional production.

Bitrate Guide for Audio Conversion

64 kbps — Acceptable for speech, podcasts, and audiobooks.
128 kbps — Decent quality for casual music listening.
192 kbps — Good quality, recommended for most users.
256 kbps — High quality, hard to distinguish from lossless.
320 kbps — Maximum MP3 quality, nearly transparent.

Specialized Audio Converters

If you know exactly which format you need, use one of our specialized audio converters for a streamlined experience:

Convert to MP3: WAV to MP3, FLAC to MP3, M4A to MP3, OGG to MP3, Video to MP3

Convert to WAV: MP3 to WAV, FLAC to WAV, M4A to WAV, OGG to WAV

Convert to FLAC: MP3 to FLAC, WAV to FLAC, M4A to FLAC, OGG to FLAC

Convert to M4A: MP3 to M4A, WAV to M4A, FLAC to M4A, OGG to M4A

Convert to OGG: MP3 to OGG, WAV to OGG, FLAC to OGG, M4A to OGG