How to Convert Video to MP3 Online — Private & Free
Learn how to extract audio from any video file entirely inside your browser. No uploads, no servers, 100% private using ConvertCraft.
Whether you want to rip a podcast intro from a video lecture, save a song from a concert recording, or extract dialogue from a clip, converting video to MP3 is one of the most common file tasks on the web.
Most video-to-audio converters require uploading your file to a server, which is slow for large videos and a privacy risk if the content is personal or confidential. ConvertCraft handles the entire extraction in your browser using FFmpeg compiled to WebAssembly.
How it works: 1) Open the Audio Converter tool. 2) Drop your video file (MP4, WebM, MKV, AVI, MOV). 3) Select MP3 as the output format and choose a bitrate (128k, 192k, or 320k). 4) Click Convert and download the audio file.
The conversion is fast — a 5-minute 1080p MP4 typically converts to MP3 in under 10 seconds on a modern laptop. Since nothing is uploaded, there are no file size restrictions beyond your available browser memory.
ConvertCraft supports extracting audio to multiple formats beyond MP3: FLAC, OGG, WAV, and AAC are all available. You can also trim the audio to extract just a specific portion of the video.