Audio Converter

Convert audio between MP3, WAV, M4A, OGG and FLAC. Add one track or a whole folder, set the bitrate and sample rate, and the encoder runs in your browser. No upload, nothing queued on a server, so your audio files never leave your device.

Add your audio files

MP3 · WAV · M4A · OGG · FLAC

Drop audio here or click to browse

Add several files to convert them in one batch

MP3WAVM4AAACOGGFLACOPUS

Converted files

Add audio to start

Your converted audio will appear here

How to convert an audio file

Add your audio

Drop one or more files into the tool, or click to browse. MP3, WAV, M4A, AAC, OGG, FLAC and Opus are all accepted.

Choose format and quality

Pick the output format, then the bitrate and sample rate. Lossless targets such as WAV and FLAC skip the bitrate setting.

Convert and download

Each file converts one after another. Download them individually, or use Download all to save the whole batch in one go.

Why use Aihangsoft Audio Converter

Five formats, one pass

Send any source to MP3, WAV, M4A, OGG or FLAC without installing a converter or opening a DAW.

Audio never leaves your device

The encoder runs inside your browser, so songs, voice notes and client recordings are never uploaded or stored. Files never leave your device.

Batch friendly

Queue a whole album, convert it file by file, and pick them up from one downloadable list at the end.

A converter for real audio work

MP3, M4A and OGG for playback

Lossy formats shrink a track to a fraction of its size. MP3 wins on compatibility, M4A gives better quality per kilobyte, and OGG stays fully open.

Use case: phones, car stereos, podcasts, streaming

WAV and FLAC for production

WAV keeps the samples exactly as they are, which is what editors and mixers expect. FLAC stores the same audio losslessly in roughly half the space.

Use case: video editing, mastering, archiving

Sample rate control

Keep the original rate, or resample to 44100 Hz, 48000 Hz or 22050 Hz when a device, a platform or a video project demands a fixed value.

Use case: video soundtracks, phone systems, voice notes

Size comparison per file

Every result row shows the format and the size change from input to output, so you can see what the bitrate really did before downloading.

Use case: checking savings, choosing a bitrate

Related tools

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Audio conversion FAQ

Yes. The encoder, FFmpeg compiled to WebAssembly, runs inside your browser tab, so your audio never leaves your device. There is no sign-up, no track limit and no fee, and the converted files carry no watermark.
You can upload MP3, WAV, M4A, AAC, OGG, FLAC and Opus files, and export as MP3, WAV, M4A, OGG or FLAC. Anything the browser can decode can also be used as a source.
Yes. Add as many tracks as you like and they are converted one after another. Every finished file gets its own download button, and Download all saves them in sequence.
At the same bitrate M4A (AAC) usually sounds better and makes smaller files, while MP3 plays on more devices and older car stereos. Choose MP3 when compatibility matters most and M4A for everyday listening.
Keep original is the safest option and leaves the audio untouched. Choose 44100 Hz for CD quality playback, 48000 Hz when the audio is headed for video, or 22050 Hz to shrink speech recordings.
No. The detail that a lossy format already discarded cannot come back. Converting to WAV or FLAC gives you an uncompressed or lossless copy of the audio as it is now, which is useful for editing but not for restoring quality.

Convert your audio now

Free, private and unlimited. No account needed.

Upload audio files