Pick a video file and extract just the audio track — useful for interviews, lectures and podcast extraction.
This tool runs entirely in your browser — no data is sent to our servers. If JavaScript is disabled, the fully interactive version will not run; enable JavaScript to compute results.
Sometimes you want only the audio from a video — for transcription, for listening to a lecture during a commute, for extracting a podcast episode. This tool uses the browser built-in MediaRecorder API to extract the audio track from a video file you provide.
The output format is WebM/Opus (a modern audio container) rather than strict MP3 — true MP3 encoding requires a heavier library (ffmpeg.wasm) that the tool does not currently bundle. For most use cases (playing back, transcription, sharing), WebM is fine. For specific compatibility with older devices or audio software, you can convert WebM to MP3 in a desktop tool like Audacity afterward.
The extraction runs in real time (a 30-minute video takes about 30 minutes to extract). For batch jobs or longer videos, dedicated desktop tools or server-side ffmpeg are much faster.
True MP3 encoding requires a separate codec library (e.g., ffmpeg.wasm) that significantly increases the page load size. WebM uses the browser built-in audio codec and works for almost all playback use cases.
No — the tool needs the video file already on your device. For online video extraction, dedicated tools handle the download and audio extraction together.
The MediaRecorder API extracts in real time, so a 30-minute video takes 30 minutes. Desktop tools using ffmpeg can do the same job in seconds, but require installation.
The Video to MP3 lives alongside Image Compressor, Image Resize, Image to PDF on the Image & File page. That landing page collects every image & file tool Dailiyo publishes, plus the editorial notes on formula sources, review cadence and how each result should (and should not) be interpreted. If a related image & file calculation isn't yet in the collection and you'd like to see it, drop a line via the contact page — the editorial team reviews every request and prioritises tools that come up most often in reader questions.