What you should know
- Choose a video file that already exists on your device.
- MP3 is compressed and portable; WAV preserves the decoded PCM audio.
- The tool does not download from a URL. Use a downloader tool first if you have the rights to the media.
- If the video has no audio stream, the job fails with a clear message.
Privacy of local processing
Your file is read with the browser File API and written into FFmpeg's in-memory filesystem inside this tab. The only third-party request is the pinned FFmpeg core from jsDelivr, loaded the first time you run a job. Your file bytes are never sent to Fetchora or jsDelivr. Closing or reloading the tab clears the in-memory filesystem.