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Audio Converter

Convert MP3, WAV, M4A, OGG, and FLAC files to the format you need, right in your browser.

Audio
Drop an audio or video file here or click to browse
or paste from clipboard (Ctrl+V) · MP3, WAV, M4A, OGG, and video files
Files stay in your browser. Nothing is uploaded.
Output format

Higher bitrates sound better and make larger files.

How to convert audio files online

  1. Add your audio

    Drag in an MP3, WAV, M4A, OGG, or FLAC file, or click to browse. Video files work too; only the audio track is converted.

  2. Pick a format and bitrate

    Choose MP3, WAV, M4A, or OGG, and set a bitrate for the lossy formats. 192 kbps is a sensible default for most uses.

  3. Convert

    Click Convert audio. The first run downloads the conversion engine once per session; after that the file converts locally in your browser.

  4. Check and download

    Play the result on the page, compare the original and converted sizes, then click Download to save the file with its new extension.

Why use this tool

Four output formats

Convert to MP3 for compatibility, WAV for lossless editing, M4A for AAC quality at modest sizes, or OGG for games and the web.

Bitrate control

Pick 128, 192, 256, or 320 kbps for the lossy formats. WAV is uncompressed, so it has no bitrate setting.

Takes video files too

Drop in an MP4, MOV, or WebM and its audio track is converted on its own; the video track is discarded.

Size comparison and preview

The result shows the original and converted sizes side by side and plays on the page, so you can check it before saving.

Conversion stays on your device

All the work happens inside your browser, so the recording is never sent to any server.

No cost, no catches

No account, no watermark, and no cap on how many files you convert.

About this tool

This tool converts audio files between MP3, WAV, M4A, and OGG, entirely in your browser. Drop in a file in any common format, FLAC included, pick the output format and a bitrate, and download the result with the same name and a new extension. Video files work too: drop in an MP4 or MOV and the audio track is converted on its own, the same job extract audio does.

The usual jobs are small and annoying. A voice memo saved as M4A that a transcription app will not take becomes an MP3 in seconds. A WAV master too big to email shrinks to a fraction of its size at 256 or 320 kbps. A sound effect needed as OGG for a game or web page converts without installing anything. For the lossy formats, higher bitrates sound better and make larger files, and 192 kbps is a sensible default for most listening.

The first run downloads the conversion engine once; it stays ready for the rest of your session, so later conversions start immediately. Everything happens on your device and nothing is uploaded, which matters when the file is a private meeting, an interview, or an unreleased demo. If the source is a video that needs a new container rather than an audio file, convert it to MP4 instead, and if the whole video is the problem, compress it first.

Frequently asked questions

Which audio formats can I convert?
You can drop in MP3, WAV, M4A, OGG, and FLAC files, plus common video formats such as MP4, MOV, WebM, and MKV, whose audio track is used. The output can be MP3, WAV, M4A, or OGG. FLAC is accepted as input only.
What does the bitrate setting mean?
Bitrate is how much data is used per second of audio, measured in kbps. Higher bitrates sound better and make larger files. 128 kbps is fine for speech, 192 kbps suits most music, and 256 or 320 kbps is for critical listening. WAV is uncompressed, so it has no bitrate setting.
Does converting MP3 to MP3 lose quality?
Yes, a little. MP3, M4A, and OGG are lossy formats, so every re-encode discards some detail, even at a higher bitrate than the source. One conversion is rarely audible, but repeated ones add up. Convert from the original file when you can, and choose WAV output if you need a copy with no further loss.
Is my audio uploaded to a server?
No. The entire conversion runs locally in your browser. Your file never leaves your device, is never uploaded, and is not stored or logged anywhere.
Why is the first conversion slower?
The first run downloads the conversion engine once per session. After that it stays ready, so later conversions start immediately. On a slow connection the one-time download is the longest part of the first run.
Is there a file size limit?
There is no fixed limit, but everything runs in your browser using your device memory, so very large files take longer and use more RAM. A typical song converts in seconds; hour-long recordings are easier on a desktop browser than on a phone.

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