MP4 to MP3
MP4 videos contain both video and audio tracks — but sometimes you only need the audio. Whether you're ripping the soundtrack from a concert video, extracting a podcast recorded as a video file, or pulling audio from a lecture recording, FluidConvert strips the audio track from your MP4 and delivers a clean MP3 file in seconds. No video editing software needed.
Drop your file here, or browse
Accepts: video/mp4, .mp4 · Max 100MB (free)
Your files are encrypted with TLS and automatically deleted after conversion.
Simply upload your .MP4 file and we'll convert it to .MP3 format — fast, free, and secure.
Fast & Free
Convert files up to 100MB at no cost. No account needed.
Secure
Files are encrypted and automatically deleted after conversion.
High Quality
Industry-leading conversion with no quality loss.
How to Convert MP4 to MP3
Upload Your File
Click the upload area above or drag and drop your .MP4 file. We support files up to 100MB on the free plan.
Choose Output Format
Select .MP3 as your target format. Adjust any conversion settings if needed.
Download Your File
Click Convert Now and wait a few seconds. Once complete, download your converted file instantly.
About MP4 to MP3
What is MP4?
MP4 (MPEG-4 Part 14) is the most widely used video container format in the world. It can store video streams, audio tracks, subtitles, and chapter information in a single file. The video is typically encoded with H.264 or H.265, while the audio uses AAC or MP3 encoding. MP4 is supported natively by virtually every device and platform — from iPhones and Android devices to Windows, Mac, streaming services, and social media platforms. Its combination of high quality and efficient compression made it the dominant video format for online streaming and digital downloads.
Why convert to MP3?
MP3 is the universal audio format — compatible with every music player, smartphone, car stereo, and audio application ever made. You'd convert MP4 to MP3 when you want just the audio from a video: ripping the soundtrack from a music video or concert recording, extracting audio from a recorded webinar or lecture to listen on the go, creating podcast audio from a video recording, pulling sound effects or music from video files for use in other projects, or shrinking a large video file down to a small audio file for easy sharing.
What to expect from the conversion
MP4 to MP3 is an audio extraction, not a re-encoding from scratch. If the MP4's audio track is already AAC-encoded, it gets transcoded to MP3. The output quality depends on the source audio quality in the original MP4 — if the video had clear, high-quality audio, the MP3 will sound great. If the original recording had background noise, wind, or poor microphone quality, those issues will remain in the extracted audio. The video data is discarded entirely, so MP3 files are typically 90%+ smaller than the original MP4.
How FluidConvert handles it
FluidConvert extracts the audio stream from your MP4 and encodes it to MP3 at 192kbps by default, which delivers excellent audio quality for music, podcasts, and speech. Processing happens on cloud servers so large video files convert quickly without taxing your device. Files are encrypted during upload and automatically deleted after you download the result.
Common reasons to convert MP4 to MP3
- Extracting the soundtrack from a purchased concert or live performance video to listen on a music player
- Converting a recorded webinar, online course, or lecture from MP4 to MP3 to listen during a commute
- Pulling audio from a video podcast recording to create an audio-only podcast episode for distribution
- Ripping audio from a music video download to add to your music library or playlist
- Extracting narration or voiceover audio from a video project for use in another production
Frequently Asked Questions
What bitrate will my converted MP3 be?
FluidConvert outputs MP3 files at 192kbps by default, which provides excellent quality for music and speech. This is the sweet spot between file size and audio fidelity — indistinguishable from higher bitrates for most content on most playback systems. The output bitrate won't exceed the quality of the source audio in the MP4.
Will I get the full audio track from the entire video?
Yes, the complete audio track from start to finish is extracted. There is no trimming or cutting unless you specifically request it. If the MP4 contains multiple audio tracks (like a video with multiple language dubs), the primary audio track is extracted by default.
Can I extract audio from a screen recording or gameplay video?
Absolutely. Any MP4 file with an audio track can be converted, including screen recordings, gameplay captures, dashcam footage, or any other video content. As long as the MP4 has audio, you'll get an MP3 with that audio extracted.
Why does the extracted audio sound different than what I heard in the video?
The video player you used may have applied audio normalization, EQ, or enhancement effects during playback. The raw extracted audio from the MP4 file reflects what's actually encoded in the file, without any playback enhancements. Some video players also boost quiet audio or apply bass enhancement by default.
Does the MP3 keep metadata like track title and artist?
ID3 metadata tags (title, artist, album, etc.) from the MP4's metadata container are written to the output MP3 when available. However, many MP4 files — especially raw recordings — don't have populated metadata, so the MP3 may have empty tag fields that you can fill in using a tag editor.