Convert MP4 videos to MP3 audio files instantly—completely free. Extract high-quality audio from your MP4 videos, perfect for YouTube downloads, music videos, podcasts, lectures, and preparing files for transcription services.
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Supported formats: MP4 videos
Maximum file size: 500MB
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Select the audio quality for your MP3 file. Higher quality means larger file size.
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• Unsupported or uncommon codec inside the file (file extension is supported, but the internal encoding isn't).
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Extract audio from MP4 videos quickly and easily. Convert to MP3, WAV, AAC, FLAC, OGG, or M4A with high quality preserved. Perfect for YouTube downloads, podcasts, transcription, and music extraction.
Extract audio from MP4 video files quickly and easily with our free online converter. No software installation required-simply upload your MP4 file, select your desired audio format, and download the extracted audio.
The extraction process preserves the original audio quality from your video file. Whether it's a YouTube download, screen recording, presentation, or any MP4 video, we maintain maximum fidelity during the conversion.
Our tool handles MP4 files up to 500MB, accommodating everything from short clips to full-length videos. Processing typically takes just seconds to a few minutes depending on file size.
The extracted audio file is ready for immediate use in any application-podcasting, transcription, music production, audio editing, or simply listening on your favorite audio player.
Best for:
YouTube downloads
Video recordings
Online courses
Presentation videos
💡 Tip
MP3 format offers the best balance of quality and file size for most use cases, with universal device compatibility.
While MP3 is our most popular output format, we support extraction to WAV, AAC, FLAC, OGG, and M4A, giving you flexibility for different use cases and quality requirements.
MP3 provides excellent quality at small file sizes with universal compatibility. WAV offers uncompressed quality ideal for editing and professional work. AAC delivers better compression than MP3 and is perfect for Apple devices.
FLAC provides lossless compression for archival purposes, preserving perfect audio quality while reducing file size compared to WAV. OGG is an open-source format with good quality, and M4A works seamlessly with iTunes and Apple ecosystems.
Choose the format that best matches your intended use-MP3 for general listening and sharing, WAV for editing, FLAC for archival, or format-specific options for particular devices or platforms.
Best for:
Device compatibility
Professional editing
Archival storage
Platform-specific needs
💡 Tip
Use MP3 for general purposes, WAV when you need to edit the audio, and FLAC for archiving music or important recordings.
Our MP4 to MP3 converter uses advanced encoding technology to preserve the maximum audio quality from your source video. We extract the audio track directly without unnecessary re-encoding when possible.
For MP3 output, we use high bitrate encoding (up to 320kbps) to ensure excellent audio quality. This maintains clarity, dynamic range, and frequency response from your original video audio.
When converting to lossless formats like WAV or FLAC, the audio is extracted with zero quality loss, giving you bit-perfect audio identical to what's in the video file.
The tool automatically detects the best encoding parameters based on your source video and selected output format, ensuring optimal quality without requiring technical expertise.
Best for:
Music videos
High-quality recordings
Professional content
Podcast source material
💡 Tip
If your source video has high-quality audio, consider WAV or FLAC output to preserve that quality for future editing or conversion.
Extract audio from YouTube videos you've downloaded to create audio-only versions for offline listening. Perfect for music videos, podcasts, lectures, interviews, and educational content available on YouTube.
Many people download YouTube videos to listen to the audio on-the-go, during commutes, or while doing other activities. Our converter makes it easy to get just the audio without the video file taking up unnecessary space.
Audio files are much smaller than video files-a 100MB video might become a 5-10MB MP3, saving storage space on your device while still providing the full listening experience.
The extracted audio maintains the quality of the YouTube video's audio track, ensuring you get clear sound whether it's music, speech, or any other content type.
Best for:
YouTube music videos
Podcast episodes
Educational lectures
Interview videos
💡 Tip
Always respect copyright and only download and convert content you have the right to use. Many creators offer audio versions separately.
Extract audio from MP4 videos for easier transcription uploads. Audio files upload faster than video files and are preferred by many transcription services including GoTranscript.
Transcription services don't need video-they only process the audio. By extracting audio first, you can upload much smaller files, reducing upload time by 90% or more compared to uploading the full video.
Smaller audio files mean faster processing and quicker turnaround on your transcriptions. A 200MB MP4 video might extract to a 10-15MB MP3, uploading in seconds instead of minutes.
The audio quality is fully preserved for transcription purposes-speech clarity and intelligibility are maintained, ensuring accurate transcription results from both AI and human transcribers.
Best for:
Video transcription
Meeting recordings
Interview videos
Webinar recordings
💡 Tip
Convert video to MP3 before uploading to transcription services to save time and bandwidth without affecting transcription accuracy.
Convert video podcasts, YouTube shows, or video interviews into audio-only podcast episodes. Many creators record video but want to distribute audio versions for podcast platforms like Apple Podcasts and Spotify.
Audio podcasts are more accessible to listeners-they can be downloaded for offline listening, consume less data, work on any audio player, and don't require watching a screen.
The MP3 format is the standard for podcast distribution, offering excellent quality at manageable file sizes. Our converter creates podcast-ready MP3 files with proper encoding settings.
Extract audio from video interviews, panel discussions, video blogs, or any video content to repurpose it as podcast episodes, expanding your reach to audio-only listeners.
Best for:
Video podcasts
YouTube shows
Interview series
Educational content
💡 Tip
Use 128-192kbps MP3 for spoken-word podcasts to balance quality and file size. Higher bitrates work better for music-heavy content.
Extract audio from music videos to create audio-only versions for your music library. Perfect for personal use when you want to listen to music without streaming video or using extra bandwidth.
Music videos can be several hundred megabytes, while the audio track might only be 3-10MB in MP3 format. Extract just the audio to save storage space on your device while keeping the music.
For archival purposes or critical listening, extract to lossless formats like FLAC or WAV to preserve the full audio quality of the music video's audio track.
The extracted audio maintains stereo channels and full frequency range, ensuring your music sounds great whether you're listening on headphones, speakers, or in your car.
Best for:
Music collections
Personal listening
DJ sets
Music archiving
💡 Tip
For best music quality, extract to FLAC or high-bitrate MP3 (256-320kbps). Respect copyright laws and only convert music you own.
Audio files are dramatically smaller than video files. A typical 1-hour MP4 video at 720p might be 500MB-1GB, but the extracted MP3 audio could be just 50-100MB-a 90% reduction in file size.
This massive size difference means faster uploads, quicker downloads, less storage space consumed, and reduced bandwidth usage. It's especially valuable when sharing files or uploading to cloud services.
For users with limited storage on phones or laptops, extracting audio from videos frees up significant space. Replace large video files with small audio files when you only need to listen.
Smaller file sizes also mean better compatibility with older devices, email attachments (which have size limits), and messaging apps that restrict file sizes.
Best for:
Storage optimization
Cloud storage
Mobile devices
Quick sharing
💡 Tip
A 100MB video typically becomes a 5-10MB MP3. Delete the video after extracting audio to free up 90% of the storage space.
MP3 files play on virtually every device and platform: smartphones, tablets, computers, car stereos, smart speakers, MP3 players, and more. Video files often have compatibility issues.
By extracting to MP3, you ensure your audio works everywhere without worrying about codec support, video player requirements, or platform limitations. It's the most universally compatible audio format.
Audio files also integrate seamlessly with music apps, podcast apps, and audio players, providing a better user experience than trying to play video files when you only want to listen.
For Apple users, M4A/AAC extraction offers similar compatibility within the Apple ecosystem, while MP3 works everywhere including Apple devices.
Best for:
Multi-device usage
Car audio systems
Older devices
Cross-platform sharing
💡 Tip
Choose MP3 for maximum compatibility across all devices, or M4A if you primarily use Apple devices and iTunes.
Your MP4 videos are encrypted during upload and processing to ensure complete privacy. We use industry-standard encryption protocols to protect your files throughout the conversion process.
All uploaded videos and extracted audio files are automatically deleted from our servers immediately after you download or within 24 hours, whichever comes first. We never store your media long-term.
No user accounts or registration required-simply upload, extract, and download. We don't track what files you convert or store any information about your conversions beyond temporary processing needs.
The extraction process happens securely on our servers, but your files never leave the secure environment. Files are not shared, analyzed, or used for any purpose other than your requested audio extraction.
Best for:
Personal videos
Sensitive content
Business presentations
Private recordings
💡 Tip
Your files are automatically deleted after processing. Download your extracted audio promptly to ensure availability.
Frequently Asked Questions
Common questions about converting MP4 to MP3 and audio extraction
Upload your MP4 video file to our converter, select MP3 as your output format (it's selected by default), and click "Extract Audio". The tool will process your video and extract the audio track as an MP3 file. Once complete, you can preview and download your MP3. The entire process is completely free with no registration required, and works for files up to 500MB.
Upload your MP4 file to our audio extraction tool, choose your desired audio format (MP3, WAV, AAC, FLAC, OGG, or M4A), and click "Extract Audio". The tool separates the audio track from the video and saves it as a standalone audio file. The original audio quality is preserved during extraction, ensuring you get clear sound whether it's music, speech, or any other audio content from your video.
After downloading a YouTube video as MP4, upload it to our converter and select MP3 as the output format. The tool extracts the audio track from the YouTube video and converts it to MP3 format. This creates a much smaller file (typically 90% smaller) that's perfect for offline listening, podcast-style consumption, or adding to your music library. Remember to only convert content you have the right to use and respect copyright laws.
MP4 is a video container format that holds both video and audio tracks, while MP3 is an audio-only format. MP4 files are much larger because they contain visual information, while MP3 files only contain audio, making them 90% smaller. MP3 files play on all audio players and devices, require less storage space, use less bandwidth, and are ideal when you only need to listen without watching. MP4 is necessary only when you need the visual component of the video.
Upload your MP4 file and select MP3 as the output. Our converter uses high bitrate encoding (up to 320kbps) to preserve maximum audio quality during extraction. While MP3 is a lossy format, the quality loss is imperceptible to most listeners when using high bitrates. For truly lossless extraction, choose WAV or FLAC as your output format instead-these preserve 100% of the original audio quality from your MP4 video. The extracted audio will be identical to what was in the video file.
Conversion time depends on your file size. Small files (under 50MB) typically process in 30-60 seconds. Medium files (50-200MB) take 1-3 minutes. Large files (200-500MB) can take 3-8 minutes. The tool provides real-time progress tracking with accurate time estimates during processing. Audio extraction is generally faster than video conversion because we're only processing the audio track, not re-encoding video.
MP3 files are dramatically smaller-typically 90-95% smaller than the original MP4 video. A 100MB MP4 video might produce a 5-10MB MP3 audio file. A 1GB video might extract to just 50-100MB of audio. This massive size difference is because MP3 only contains audio while MP4 contains both video and audio. The exact size depends on the audio bitrate and length of the file, but the reduction is always substantial.
Upload your MP4 file and select either MP3 or M4A as the output format. Both work perfectly on iPhone and in iTunes, but M4A (AAC) is Apple's native format and integrates more seamlessly with the Apple ecosystem. MP3 offers broader compatibility if you also use non-Apple devices. After conversion, simply add the audio file to your iTunes library or transfer it to your iPhone using iTunes, Finder (macOS), or cloud storage services like iCloud Drive.
Upload your MP4 video and convert to MP3 format. Transcription services like GoTranscript prefer audio files over video files-they're much smaller and upload faster. A 500MB video might extract to a 30-50MB MP3, reducing upload time by 90% or more. The audio quality is fully preserved for transcription accuracy. Extracting audio before uploading to transcription services saves time, bandwidth, and often reduces costs on platforms that charge based on file size.
Yes! Upload your MP4 file and select WAV from the audio format options. WAV is an uncompressed audio format that preserves 100% of the original audio quality from your video-perfect for editing, professional work, or archival. WAV files are larger than MP3 (similar to the original MP4 size) but provide lossless quality. Use WAV when you need to edit the audio, create masters, or maintain absolute quality. For general listening, MP3 is more practical due to smaller file size.
Upload your video lecture MP4 file, select MP3 as the output, and extract the audio. This creates a portable, audio-only version perfect for listening during commutes, while exercising, or doing other activities where watching video isn't practical. MP3 files are much smaller than videos, so they take up less storage on your phone. Educational content, lectures, and presentations often don't require visual attention-the audio alone provides the learning value while being much more convenient to consume.
Upload your MP4 music video and select your desired audio format-MP3 for general listening or FLAC/WAV for high-quality archival. The tool extracts the stereo audio track while preserving the full frequency range and dynamic range of the music. For casual listening, 192-320kbps MP3 provides excellent quality at manageable file sizes. For critical listening or archival, choose FLAC for lossless quality. Always respect copyright-only convert music videos you own or have rights to use.
Upload your video podcast or interview MP4 file, select MP3 as the output, and extract. MP3 is the standard format for podcast distribution on platforms like Apple Podcasts, Spotify, and Google Podcasts. The extracted audio is immediately ready for podcast hosting-no additional processing needed. Audio-only podcasts are more accessible to listeners, use less bandwidth, work on all devices, and are preferred by most podcast audiences. Convert your video content to audio to expand your reach.
Our converter automatically uses optimal bitrates for MP3 extraction. For speech content like podcasts, interviews, or lectures, 128-192kbps provides excellent quality with small file sizes. For music, 256-320kbps ensures high fidelity and is recommended for critical listening. If you need absolute control over quality, consider extracting to WAV (lossless) first, then converting to MP3 at your desired bitrate using specialized software. For most users, our default settings provide the perfect balance of quality and file size.
Upload your MP4 screen recording, select MP3, and extract the audio. This is perfect for software tutorials, presentation recordings, or meetings where you want to review the audio without watching the video. Screen recordings can be very large (especially at high resolutions), but the audio is typically small. Extracting to MP3 dramatically reduces file size, making it easier to store, share, and review. The audio maintains clarity for speech, making it suitable for note-taking or transcription purposes.
Our tool currently processes one file at a time for quality and security. To convert multiple files, simply process them sequentially-upload one MP4, extract to MP3, download, then repeat with the next file. Each conversion is quick (typically 1-3 minutes per file), and you can queue up your conversions. The one-at-a-time approach ensures maximum quality and allows you to preview each result before downloading, ensuring satisfaction with every conversion.
Our web-based converter works perfectly on mobile devices-no app installation required. Simply open your mobile browser (Safari, Chrome, Firefox), navigate to our site, upload your MP4 from your phone or cloud storage, select MP3, and extract. The converted MP3 downloads directly to your phone. This works on both iPhone and Android devices. The mobile-friendly interface makes it easy to convert videos on-the-go without needing a computer.
Upload your MP4 video, convert to MP3, and download. MP3 files are perfect for WhatsApp-they're much smaller than videos, so they send and download faster on mobile connections. WhatsApp also has file size limits; extracting audio ensures you stay within those limits. A 100MB video might become a 5MB MP3, making it quick to send and receive. Recipients can listen immediately without consuming large amounts of mobile data or storage space on their phones.
The conversion itself doesn't reduce quality beyond what's inherent to the MP3 format. Our tool extracts the audio track from your MP4 and encodes it to high-quality MP3 (up to 320kbps). If your source video has high-quality audio, the resulting MP3 will maintain excellent quality that's indistinguishable from the original for most listeners. For zero quality loss, extract to WAV or FLAC instead-these lossless formats preserve 100% of the original audio. MP3 provides the best balance of quality and file size for most users.
Upload your MP4 file and convert to MP3 for universal car audio compatibility. MP3 works in virtually all car stereos, whether modern or older models. Many cars don't support video playback but have excellent MP3 support via USB, SD card, or Bluetooth. Extract your favorite music videos, podcasts, or audiobooks from MP4 to MP3, then transfer to USB drive or phone for seamless car audio playback. MP3 ensures compatibility without worrying about codec support or video file issues.
Upload your Zoom, Teams, or Google Meet MP4 recording and extract to MP3. Meeting recordings are often very large because of the video, but participants usually only need the audio for reviewing discussions. Converting to MP3 reduces file size by 90%, making it much easier to share with attendees, upload to cloud storage, or store for future reference. The audio clarity is preserved for reviewing action items, decisions, and discussions without the storage burden of full video.
Upload your MP4 video recording, select MP3 or M4A as the output format, and extract. If you've recorded audiobook narration as video (perhaps for video quality monitoring), extracting to audio creates the final audiobook file. MP3 is widely compatible with all audiobook players and platforms. M4A works especially well with Apple Books. For professional audiobook production, consider extracting to WAV first for editing, then converting to MP3/M4A for final distribution.
Upload your MP4 file and select FLAC from the format options instead of MP3. FLAC extracts the audio with zero quality loss-it's bit-perfect identical to the audio track in your video. FLAC uses lossless compression, so files are smaller than WAV but larger than MP3. Use FLAC when archiving music videos, preserving important recordings, or when you need maximum quality for future editing or format conversion. FLAC is ideal for music enthusiasts and audiophiles who prioritize quality over file size.
Upload your MP4 and select AAC (M4A) as the output format. AAC is Apple's preferred audio format, offering better quality than MP3 at similar file sizes. It integrates seamlessly with iTunes, iPhone, iPad, iPod, and Apple Music. AAC files play perfectly on Apple devices while using less storage space than WAV. If you primarily use Apple products, AAC is an excellent choice. For cross-platform compatibility, stick with MP3, which works everywhere including Apple devices.
Our converter supports MP4 files up to 500MB. For larger files, consider splitting the video into smaller segments first, or compressing the MP4 before uploading. Most MP4 files over 1GB are lengthy videos or very high resolution-the extracted audio will still be reasonably sized (typically 50-100MB per hour of audio). If you have a very large file, you might also consider using desktop software designed for handling massive files, though our tool handles the vast majority of typical MP4 video files with ease.
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