How to convert audio files
Start with the page that matches your source. Audio Format Converter changes one audio format to another. MP4 to MP3 Converter takes a video file and extracts its audio as an MP3. Choose the output settings, then download the converted file. Both pages run in your browser, with no upload.
Choose an audio format converter
Use Audio Format Converter when the source is already an audio file. It accepts audio files and lets you choose MP3, AAC (M4A), FLAC, WAV, OGG Vorbis, or Opus as the output. Before converting, you can set bitrate, sample rate, channels, metadata, and loudness.
- Choose the output format that the next application or workflow requires.
- Set bitrate, sample rate, or channels when those audio properties need to match the next step.
- Check the metadata and loudness controls before converting when the output needs those values handled.
Use an MP4 to MP3 converter for video files
Use MP4 to MP3 Converter when the source is a video and you want its audio as an MP3 file. It extracts audio from MP4, MOV, MKV, AVI, and WebM files, then lets you choose an MP3 bitrate before downloading the result.
Choose based on the input file. Audio Format Converter starts with an audio file and creates another audio format. MP4 to MP3 Converter starts with a video file and creates an MP3.
What audio conversion changes
The selected output format controls the file type in the download. The conversion creates a new file. Use Audio Format Converter when an audio source needs MP3 output. Use MP4 to MP3 Converter when a video source needs an audio-only MP3.
Source: interview.wav
Output format: MP3
Result: interview.mp3For a video source, the result is an MP3 audio file.
When to use each converter
- Use Audio Format Converter when a WAV recording needs an MP3 copy.
- Use MP4 to MP3 Converter when a WebM video needs an audio-only MP3.
- Choose Audio Format Converter when the next stage needs FLAC, WAV, Opus, or another listed audio output.
- Choose MP4 to MP3 Converter for MP4, MOV, MKV, AVI, or WebM video sources.
When to use another Audio Tools page
Go to Audio Tools when the job is compressing, trimming, cleaning, merging, tagging, recording, or analyzing audio. Return to Audio Convert Tools for a format change or for extracting audio from a video.
Frequently asked questions
How do I convert audio files to MP3?
Choose Audio Format Converter, select the audio file, choose MP3 as the output format, set any available options, and download the converted file.
Which audio format converter should I use?
Use Audio Format Converter for an audio source that needs another audio format. Use MP4 to MP3 Converter when the source is an MP4, MOV, MKV, AVI, or WebM video and the result should be an MP3.
Can I extract audio from an MP4 file?
Yes. MP4 to MP3 Converter extracts audio from MP4 files and creates an MP3 download; it also accepts MOV, MKV, AVI, and WebM video files.
What formats can Audio Convert Tools create?
Audio Format Converter can create MP3, AAC (M4A), FLAC, WAV, OGG Vorbis, or Opus. MP4 to MP3 Converter creates MP3 from supported video files.