Drop your audio or video file, pick an MP3 bitrate, and download the converted MP3.
Audio Converter
Turn an audio file, or the soundtrack of a video, into an MP3 right in the browser. Choose an MP3 bitrate, drop or select your file, and save the result - conversion runs in the tab using FFmpeg.wasm and nothing reaches a server. The working copy is released when you navigate away.
You can start from MP3, WAV, AAC, OGG, FLAC, or M4A audio, or a video whose sound you want to keep; the output is always an MP3. The bitrate dropdown lets you choose 128, 192, 256, or 320 kbps. Your input file is processed locally and discarded when the page closes - nothing is stored or uploaded at any step.
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freetoolonline.com editorial teamFrequently Asked Questions
What does Audio Converter do?
It turns an audio file - or the audio track of a video - into an MP3 right in your browser, at a bitrate you choose. Nothing is uploaded: the conversion runs on FFmpeg loaded into the page, so the file never leaves your device.
When should I reach for audio converter?
Reach for it when you have an audio file, or a clip whose sound you want to keep, and you need a compact, widely-playable MP3. Common cases: shrinking a large WAV or FLAC recording, or pulling the soundtrack out of a video. Pick 128 kbps when file size matters most and 320 kbps when you want the best quality (192 kbps is the default). Because everything is processed on your device, private recordings never leave the browser.
What complementary tools work well alongside audio converter?
If you are starting from a video, convert or trim it first with the Video Converter, which handles MP4, MOV and WebM and can also trim a segment or output MP3 or WAV. Once you have the clip you want, bring it here to re-encode the audio to an MP3 at your chosen bitrate. The related-tools list at the foot of the page links the other media tools on the site.