# Convert MP4 to MP3 > Pull the audio out of any MP4 video as an MP3 that plays everywhere — music, podcasts, lectures, voice memos. Extract the audio track from any video and save it as MP3, M4A, or WAV. Runs entirely in the browser; no upload, no signup. ## When you need MP3 instead of MP4 MP4 is a video format, and a lot of what we record as video is really about the sound: lectures, interviews, meetings, concerts, voice notes that happened to be filmed. Converting MP4 to MP3 strips away the video stream — often 90% of the file size — and leaves a small, universal audio file you can play in any music app, share in chats without size complaints, or import into editing software that only accepts audio. Common uses: turning a recorded Zoom or Teams meeting into a listenable file for your commute, saving the audio of a webinar or online course, extracting a song performance from a phone video, or preparing interview audio for transcription. ## MP3, M4A, or WAV? MP3 is the safe default — every device and app plays it. M4A (AAC) sounds slightly better at the same file size and often avoids a re-encode because most MP4 videos already carry AAC audio; pick it if your player supports it. WAV is uncompressed and much larger — choose it only when you plan to edit the audio afterwards and want zero generation loss. You can switch the output format on this page before or after extracting. ## Frequently asked questions ### How long does it take? Usually well under a minute. Only the audio track is decoded and re-encoded — the video stream is skipped entirely, so even long videos process quickly right in your browser. ### Will the audio quality suffer? The audio is extracted directly from the video file, so you get exactly what the video contains. MP3 and M4A re-encode at a high bitrate that is indistinguishable for speech and music; WAV is fully uncompressed. ### What can I do with the MP3? Anything: load it into a podcast app, a DAW, or an audio editor, attach it to a message, or keep it as a lightweight copy of a lecture or meeting recording. MP3 plays on effectively every device and app made in the last 25 years. ### Does it work with large videos? Yes, up to 1.5 GB per file. Because only the audio track is processed, even hour-long recordings extract quickly. ### Is it really free? Yes. The audio extractor is completely free, with no signup, watermarks, or limits. We make money from our video translation service, not from this tool. ### Do you upload my files? No. The extraction happens locally in your browser using WebAssembly. Your file never leaves your device — you can even disconnect from the internet once the page has loaded. --- _Free · No sign-up · No watermark · Runs entirely in your browser — your file never leaves your device._ - Open this tool: https://easydub.video/tools/extract/mp4-to-mp3 - All free EasyDub tools: https://easydub.video/tools