One click to convert MP4 to MP3 without quality loss in ArkThinker.
Add File to Start Or drop files here. Max file size 50MB. Sign Up for max file size 100MB
Setting
Custom resolution:
| Operation | Free Trial Version | Logged-in Account | Pro Version |
 File validity period | No | 7 days | No limit |
 File number | 2 files/24 hours | 10 files/24 hours | No limit |
 File size | Less than 50MB | Less than 100MB | No limit |
 Batch processing | No | No | Yes |
 Advanced trimming | No | No | Yes |
 Secure transmission | Yes | Yes | Yes |
Failed to upload media file! Please try again, or use ArkThinker Video Converter Ultimate for Desktop.(Error code: 20015)
ArkThinker Video Converter Ultimate
The original video resolution is higher than 720p. If you want to output the original high resolution, you need to download the Pro Version. Or would you like to output the default 720p resolution?
Get unlimited Chance to Convert Video and Audio Files of 1000+ Formats Offline Using AI
1. Add MP4 File
Click Add File to Start to select your MP4 files.
2. Convert to MP3
Select MP3 as the output format and click Convert to MP3.
3. Save MP3 Audio
Finally, click Download to save the MP3 file on the computer.
| File Extension | .mp4 | .mp3 |
|---|---|---|
| Category | Video File | Audio File |
| Description | MP4 is a digital multimedia file whose full name is MPEG-4 Part 14. MP4 file format is a container that people can use to store video, audio, subtitles, still images, and other data. MP4 is widely used and supported. Most players, devices, and social media platforms support opening, playing, and streaming MP4 files. | MP3 is a coding format for digital audio. Its full name is MPEG-1 Audio Layer III or MPEG-2 Audio Layer III. People commonly use MP3 as a file format to contain a MPEG-1 Audio, or MPEG-2 Audio encoded data. And MP3 is used most widely to store audio format. |
| Technical Details | MPEG-4 files with video and audio usually use .mp4 extension. And most data can be embedded in MP4 files via private streams. A single hint track is used to contain flow information in the file. There are many registered codecs for MP4, but only some of these are widely supported. | MP3 frames containing a header and a data block make up an MP3 file. And using an MP3 data stream to perform audio encoding is lossy. An MP3 file with a setting of 128kbit/s will produce a file about 1/11 the size of a CD file created from the original audio source. |
| Associated Programs | Apple QuickTime Player Microsoft Windows Media Player VLC Media Player Media Player Classic 5KPLayer | Windows Media Player iTunes Mplayer VLC Media Player Winamp |
| Developed by | Moving Picture Experts Group | Moving Picture Experts Group |
| MIME Type | video/mp4 audio/mp4 | audio/mpeg |
| Useful Links | Detailed introduction of MP4 file format | Further information on MP3 file format |
Using this tool to change MP4 to MP3 is 100% free and does not need you to purchase any.
You can change Encoder, Resolution, Bitrate, Zoom Mode, etc., for video and audio output.
After using this tool, your data will be deleted automatically and not be revealed to others.
How to trim MP4 videos with ease?
You can use ArkThinker Video Converter Ultimate to trim MP4 videos easily.
1. Click the Add File button to import your MP4 videos;
2. Click on the Trim icon to start cutting videos.
How do I enhance my MP4 video quality?
ArkThinker Video Converter Ultimate enables you to enhance your MP4 video quality.
1. Go to the Toolbox tab and choose the Video Enhancer button;
2. Add your MP4 video and Upscale Resolution, Optimize Brightness and Contrast, Remove Video Noise, and Reduce Video Shaking;
3. Click the Enhance button, and you can finish improving your MP4 video quality.
How to remove the audio from my MP4 video?
You can use the Audio Track Disabled feature of ArkThinker Video Converter Ultimate to remove the audio from the video. Or you can drag the Volume bar to zero in the Audio tab of the Edit window to remove the audio.
How do I replace the audio in videos quickly?
ArkThinker Video Converter Ultimate has a feature you can use to replace the audio in videos.
1. Add the video to the software and click the Edit icon;
2. Enter the Audio tab and change the audio by clicking the plus sign after Audio Track.
This tool is easy because it has a straightforward interface and a simple button setting. And it does not need me to download or install anything on my computer for converting.
Thanks to ArkThinker Free MP4 to MP3 Converter Online, I can change my MP4 videos to MP3 files quickly without losing quality.
What I like most about ArkThinker Free MP4 to MP3 Converter Online is that it also supports converting other file formats, so I do not need to find other tools when I want to convert MP4 to other formats.
I have been looking for a clean online tool for some time. And luckily, I found that ArkThinker Free MP4 to MP3 Converter Online does not have any advertisements.
I like using this tool to convert MP4 to MP3 because it enables me to change the bitrate of the output MP3 file.
I have used ArkThinker Free MP4 to MP3 Converter Online to change my file formats many times, and it can always meet my needs, so I would like to recommend this tool to my friends.
Convert MP4 to Other File MP4 Converter
Convert Other File to MP3 MP3 Converter
ArkThinker Video Converter Ultimate supports converting video/audio files to other 1000 formats with ease, including MP4, FLV, AVI, MKV, MP3, etc. You also can use this software to make a photo and video slideshow, create photo and video collages, trim videos, enhance video quality, add filters to videos, crop and rotate videos, compress video and audio files, speed up or slow down videos, remove video watermarks, etc.
| Function | MP4 to MP3 Converter Online | Pro Version |
|---|---|---|
| File number | 2 files/24 hours | No limit |
| File size | Less than 50MB | No limit |
| Batch processing | ||
| Advanced trimming | ||
| Video editing | Crop, rotate, add watermarks, add filters, adjust effects, etc. | |
| Other tools | Video Compressor, GIF Maker, Video Watermark Remover, Video Enhancer, etc. |
Step 1. Add Video/Audio Files
Launch ArkThinker Video Converter Ultimate on your computer and click the Add Files button to import your video/audio files.
Step 2. Choose Output Format
Then you can click the pull-down icon on the top right corner of the interface to select the file format you want to convert.
Step 3. Complete Converting
Finally, you need to click the Convert All button to finish the conversion process.
