Convert Video to Audio Online
MP3, WAV or M4A

Free Video to Audio Converter Online

A video to audio converter extracts a video's audio stream into a file for listening, sharing or editing. Use this video to MP3 converter to extract audio from a recording you own or have permission to use.

This interface uses FFmpeg WebAssembly in your browser to convert video to audio online. It handles one video at a time and offers MP3, WAV and M4A. Decoding depends on the video's codecs and the available browser build.

How to Convert Video to Audio Online

Follow the steps below to choose a video, select an audio format and save the generated file.

Convert Video to MP3, WAV or M4A

Each output option uses different audio encoding. Consider device compatibility, editing needs and the characteristics of the source recording when choosing.

Convert Video to MP3

MP3 is widely supported by music players, phones, browsers and audio applications. This converter encodes it at 192 kbps and 44.1 kHz stereo. MP3 is lossy, so the output is not lossless and may differ from the source.

Extract Audio as WAV

WAV output uses 16-bit PCM at 44.1 kHz stereo. PCM is uncompressed audio data and may be convenient for workflows that expect WAV files, such as further editing or importing into audio software. An uncompressed WAV does not restore information already lost in a compressed or low-quality source recording.

Convert Video to M4A

M4A is an audio container commonly used with AAC. This converter encodes it at 192 kbps and 44.1 kHz stereo. It offers compressed audio, but compatibility varies between players and services.

Supported Video Formats

Video containers can hold different codecs. A listed extension may be accepted while its streams fail to decode in the browser FFmpeg build.

MP4 to MP3 and Other Audio Formats

MP4 is common for recorded video. Choose MP3, WAV or M4A if its audio stream can be decoded. The contained codecs matter as well as the extension.

MOV and AVI Video Files

MOV and AVI are accepted, but their codecs vary. Confirm the video contains audio; some files may not decode successfully.

WebM and MKV Containers

WebM and MKV can contain different audio streams. Results depend on whether this page's FFmpeg build supports the file's codec.

MPEG, MPG, FLV and 3GP Files

MPEG, MPG, FLV and 3GP extensions are accepted too, though codec support varies. Test the specific file.

MP3 vs WAV vs M4A: Which Format Should You Choose?

Use the intended playback or editing workflow to guide your choice. The table summarizes the output settings used by this converter.

These settings describe the output, not the source recording's quality or compatibility with every device. Check your intended player or editor.

Understanding Audio Quality and Bitrate

Bitrate is the amount of encoded data used per second. For lossy MP3 and AAC, it affects the encoded result but cannot add detail missing from the source.

MP3 and M4A/AAC use 192 kbps at 44.1 kHz stereo. WAV uses uncompressed 16-bit PCM at 44.1 kHz stereo, but cannot recover information discarded by a compressed source.

Recording conditions, codecs and the source stream also affect quality. Listen to the downloaded audio before using it. The converter has no custom bitrate or audio-enhancement controls.

Common Reasons to Extract Audio from Video

Save Spoken Audio from Your Own Videos

Extract audio from a personal recording, interview or presentation you created. Confirm it contains an audio track and that you have permission to use it.

Prepare Audio for Permitted Editing Projects

A separate audio file may be easier to import into an editing project. This tool does not trim clips, remove noise, isolate vocals or edit audio.

If you are also preparing a supporting image, the Image Converter handles image-format conversions separately; it does not edit the extracted audio.

Use Audio in Presentations

A permitted sound clip can be prepared for a presentation. Confirm the output works in the software you will use.

Work with Recordings and Educational Material

A separate audio file can help organize educational recordings you may use. The converter does not create transcripts or captions.

How Browser-Based Video to Audio Conversion Works

This page uses FFmpeg WebAssembly to read a video's streams, decode audio and encode the selected output in the browser.

The browser may first load FFmpeg assets from the website. This page's processing is browser-side, but that does not mean the entire website works offline or every site workflow is browser-only. A separate server conversion endpoint also exists in the project.

Memory, device performance and codec support affect processing. An unsupported stream or video without decodable audio cannot produce the intended output.

Tips for Better Video to Audio Results

• Choose for the intended use. MP3 is common for playback, WAV PCM can suit editing workflows and M4A/AAC is a compressed option where supported.
• Check that the video has sound. A silent video or unsupported audio stream may not produce an audio file.
• Start with a clear source recording. Conversion cannot repair poor microphone quality, clipping or missing audio detail.
• Keep the file within 50 MB. The page rejects larger videos. Large accepted files may still need substantial browser memory.
• Allow time for processing. Duration depends on the video, codec, browser and device; no fixed conversion speed is guaranteed.
• Listen to the export. Confirm the audio is present, plays as expected and is suitable before sharing or publishing.
• Consider codec and resource limits. Unsupported streams, low available memory or device constraints can cause conversion to fail.

For additional technical background, read MDN's guide to audio codecs for web media and the ffmpeg.wasm overview.

Frequently Asked Questions About Video to Audio Conversion