Most Popular Conversions to MP3
All Formats to MP3
Common Audio Formats
Lossless Formats
Extract Audio from Video
How to Convert Any File to MP3
Drag and drop your audio or video file, or click Browse. Files up to 50 MB are supported.
Choose 128, 192, 256, or 320 kbps. Higher bitrate means better sound and a larger file. Defaults work well for most tracks.
Conversion takes seconds. Your MP3 is processed on secure servers and deleted within 24 hours.
Why Convert to MP3?
Universal Compatibility
MP3 plays on virtually every phone, car stereo, smart speaker, browser, and media player made in the last 25 years. When you need audio that just works everywhere, MP3 is the safest choice.
Smaller File Sizes
MP3's lossy compression makes files a tiny fraction of the size of WAV or FLAC. That means faster uploads, easier email attachments, and more songs on a device or SD card.
Podcasts & Sharing
Most podcast hosts, messaging apps, and upload forms expect MP3. Converting first avoids "unsupported format" errors and keeps episodes small enough to stream smoothly.
Extract Audio from Video
Only need the sound from a video? Converting MP4, MOV, MKV, AVI, or WebM to MP3 discards the picture and keeps just the audio - Perfect for lectures, interviews, and music.
MP3 Bitrate Settings: Choosing the Right Quality Level
| Bitrate | Quality | Approx. Size (3 min) | Best For |
|---|---|---|---|
| 128 kbps | Good | ~2.8 MB | Voice, podcasts, small files |
| 192 kbps recommended | Very good | ~4.2 MB | General music listening |
| 256 kbps | Excellent | ~5.6 MB | High-quality music |
| 320 kbps | Maximum | ~7.0 MB | Audiophile playback, archiving |
Higher bitrates preserve more detail but produce larger files. 192 kbps is a good balance for most listeners; use 320 kbps when quality matters most.
Getting the Best Results When Converting to MP3
MP3 remains the most compatible audio format in the world, which is exactly why converting to it solves so many everyday problems. If you have recorded a voice memo on an iPhone, the file arrives as M4A - converting M4A to MP3 makes it playable on Windows, Android, and any basic media player without an Apple codec. Downloaded a lossless album as FLAC? Converting FLAC to MP3 compresses each track to a fraction of the size so it fits comfortably on a phone or an old car stereo's USB stick, while still sounding great at 256 or 320 kbps.
A huge share of "convert to MP3" requests are really about pulling audio out of video. MP4 to MP3, MOV to MP3, and WebM to MP3 all extract the soundtrack and discard the picture - Ideal for saving a lecture, an interview, or a song from a music video as a listen-anywhere audio file. Because the video stream is dropped entirely, the resulting MP3 is dramatically smaller than the source.
When you are working from an uncompressed source like WAV or AIFF, choose your bitrate deliberately. Converting WAV to MP3 at 320 kbps keeps the audio close to indistinguishable from the original for normal listening, while 128 kbps produces a much smaller file that is perfect for spoken-word content. Once your MP3 is ready, you can fine-tune it further with our volume normalizer, trimmer, or compressor.
Frequently Asked Questions
How do I convert an iPhone M4A voice memo to MP3?
Use mp3.now's M4A to MP3 converter - Upload your .m4a file and it will be converted to a standard MP3 in seconds. iPhone voice memos and Apple Music files use the AAC codec inside an M4A container, which is efficient but not supported by every player. Converting to MP3 makes the recording playable on Windows, Android, and virtually any device.
Can I extract audio from a video file?
Yes - MP4 to MP3, MOV to MP3, MKV, AVI, and WebM converters all extract just the audio track and save it as an MP3. The video image is discarded, so the resulting file is much smaller. This is ideal for saving music, lectures, or interviews from a video as a listen-anywhere audio file.
Will converting WAV or FLAC to MP3 reduce quality?
Converting a lossless source (WAV, FLAC, AIFF) to MP3 applies lossy compression, which permanently discards some inaudible data to save space. At 256 or 320 kbps the difference is imperceptible to most listeners in normal conditions. If you need to preserve every bit of the original, keep a lossless copy and use MP3 only for portable playback and sharing.
What bitrate should I choose?
For general music, 192 kbps is a great balance of quality and size. For spoken-word content like podcasts and audiobooks, 128 kbps keeps files small with no noticeable loss. For high-quality music or archiving, choose 320 kbps. You can always re-encode later with our bitrate changer.