Which audio format keeps the best quality?

WAV and FLAC are lossless — no quality is lost. MP3 and AAC are compressed and much smaller, with quality loss that's usually inaudible at normal bitrates.

Can I extract audio from a video file?

Yes — upload an MP4, MOV, MKV or other video and choose an audio format as the output; only the soundtrack is converted.

Is there a daily limit on conversions?

No. Convert as many audio files as you need, with no registration and no daily cap.

Audio Converter Online

Convert audio between MP3, WAV, OGG, AAC, FLAC, M4A and Opus, or pull the audio track out of any video.

or drag & drop them here · images, video, audio and documents · up to 2 GB

Popular conversions

MP4→MP3 WAV→MP3 MP3→WAV M4A→MP3 FLAC→MP3 OGG→MP3 AAC→MP3 WMA→MP3 OPUS→MP3 M4A→WAV WEBM→MP3 WMV→MP3 FLV→MP3 MOV→MP3 AVI→MP3 MKV→MP3

Format reference

MP3 WAV FLAC M4A OGG AAC WMA OPUS

Why use this converter

Covers everyday audio formats — MP3 for compatibility, WAV and FLAC for lossless quality, M4A and AAC from Apple devices, OGG and Opus for the web.
Bitrate is tuned per target format to keep the converted track sounding as close as possible to the original.
You can also pull the audio track out of a video file and save it as MP3, WAV or another audio format.

Frequently asked questions

Which audio format keeps the best quality?: WAV and FLAC are lossless — no quality is lost. MP3 and AAC are compressed and much smaller, with quality loss that's usually inaudible at normal bitrates.
Can I extract audio from a video file?: Yes — upload an MP4, MOV, MKV or other video and choose an audio format as the output; only the soundtrack is converted.
Is there a daily limit on conversions?: No. Convert as many audio files as you need, with no registration and no daily cap.