Top 10 Online Audio Converter 2021

Last Updated on 2022-06-24 Diane

Are you looking for reliable online video converter? There might be occasions when your mobile phone intermittently reminds you of its impending filled internal storage after you have imported lots of songs in video or audio of large size. What a frustrating moment! This signal implies your SD card fails to contain other songs any more. What will you do? Maybe, you have to bear pain to delete some of your loved songs, which does not meet your expectations. Are there any ways out?

Actually, there is an optimal solution for you to iron out this problem. That is, resorting to online video to audio converter or online audio converter to MP3 will help you considerably reduce the music file size. Therefore, the trouble of worrying about insufficient storage space will vanish into nothing. If you have nothing in mind concerning what to choose, read through this writing with patience. Here comes the top 10 free online audio converters.

Top 10 Online Audio Converter

Below descriptions will give you a full picture of top 10 free online audio file converter, which will provide a wide range of choices when you need to convert video or audio to sheet music online so as to reduce file size on SD cards.

1. Online Audio Converter

This audio converter is a free online app that quickly converts video and audio files without any installation. Meanwhile, uploaded files can be deleted from the server a few hours after the whole conversion process.

Online Audio Converter


1. Support 300+ source formats, output MP3, WAV, M4A, FLAC, AMR, MP2 (iPhone ringtones)

2. Extract audio from a movie or music video or remove a voice from the audio track

3. Allow for customized settings (quality, bit rate, sample rate, channels, playback mode)

4. Import source files from local computer, URL, Google Drive and Dropbox


1. Only convert files online

2. Take much time to load large files

3. Ads embedded on web interface

2. File Converter

This program is a browser-based free online file converter that converts all types of files such as video, audio, image, presentation, font, document and eBook. Fast, easy and secure, it works on the cloud without occupying any capacity from PC.

File Converter


1. Support 300+ file formats and batch conversion

2. Load source files from local PC, URL, Google Drive and Dropbox

3. Delete uploaded files to ensure 100% privacy

4. Customized output options (codec, bit rate, channels, frequency, volume )


Conversion tasks only available with an internet connection

3. Online Music Converter

This online audio converter to MP3 easily converts video or audio file to MP3 with high quality. Besides, it loads source file from multiple channels: local computer, Dropbox, Google Drive and URL.

Online Music Converter


1. Support 50+ source formats (OGG to MP3, MP4 to MP3, WMA to MP3, WAV to MP3, FLV to MP3, MOV to MP3, RAM to MP3, PCM, ALAC, FLAC)

2. Load source file from local PC, URL or online cloud storage

3. Customize output parameters (bit rate, sample rate and channels before conversion)

4. Trim audio and remove cover art


1. Free account no access to all features

2. Video file size to be converted cannot exceed 100MB

3. Bulk conversion not surpass 10 files each time

4. Total Audio Converter

This free online audio converter does not merely work online but has a desktop converter to avoid situation without internet. It has been popular online for 10 years among those who want to get music from iTunes.

Total Audio Converter


1. Support WAV, FLAC, OGG, OFR, MP4, MPC, APE and other audio formats

2. Rip CDs and convert CDA to lossless or compressed formats

3. Capture audio from YouTube or SoundCloud videos

4. Split APE and FLAC files by CUE


1. Must work with good internet

2. Limited output file format (MP3, MP4, WMA, WAV, OGG)

3. Limited customized options (sample rate, bit rate and channels )

5. Audio Converter

This free online audio converter allows for conversion of multiple audio files and customized options to gain needed output audios. Simple user interface and conversion in bulk add spice to this audio to MP3 converter online.

Audio Converter


1. Support various audio formats (MP3, WAV, M4A, FLAC, OGG, AMR, AAC, MP2, iPhone Ringtone)

2. Load audio files over five at one go

3. Multiple options to output audios differently

4. Allow for editing track info (title, artist, year, album and genre)


1. Perform conversion with internet connection

2. Unclean web interface with Ads interruption

6. JS Audio Converter

The application of HTML5 and FFMPEG.JS technology makes it possible to convert audio files online in the browser directly. No data will be stolen and traffic overhead is small.

JS Audio Converter


1. Output various formats (MP3, WAV, OGG, AAC, M4A, M4R, FLAC, WMA, OPUS, AIFF, MMF)

2. Support customized settings of converted audio file

3. Fast conversion speed


1. Convert one file each time

2. Must work online

7. AConvert

This online video to audio converter realizes conversion of numerous types of files such as audio, video, image, archive, webpage, eBook, document and PDF. Such a versatile converter gives you nice experience.



1. Output various audio formats (MP3, WAV, WMA, OGG, AAC, FLAC, AU, M4A, AIFF, OPUS, RA and AMR)

2. Allow for cutting and merging features

3. Customized options to change audio bit rate and sample rate

4. Load source file from local computer, URL, Google Drive and Dropbox


1. Convert audio files one by one

2. Only a few customized options such as bit rate and sample rate

3. Unclean web interface with constant Ads

8. FreeFileConvert

This online audio file converter is able to convert various type of files easily and quickly, not just limited to audio to audio, but capable of converting video, image, archive, document, font, eBook, presentation, excel, PDF.



1. Provide conversion of files into various formats

2. Import source files from PC, URL, Cloud and Ads

3. Convert files in bulk easily and quickly

4. Achieve file conversion in lossy compressed or uncompressed form


1. Free account conversion not more than 5 files, 300MB in total

2. User interface not that clean and friendly

3. Work only online

9. Convert Audio Files

This free online audio converter, with simple operation interface, is able to convert audio file between various supported extensions. Just load your video or audio file, choose desired output format and press the ‘Convert’ button. A few clicks can get your converted audio.

Convert Audio Files


1. Easy-to-use interface and free conversion

2. Support diverse formats (3GP, AC3, AMR, AAC, ALAC, WMA, AIFF, DAUD, FLAC, MP4, MP2, MP3, M4A, OGG, VOC, WAV)

3. Listen to the converted audio file online or download to HDD


1. Convert only one file each time

2. Must work online with good internet connection

3. No customized options like bit rate, sampling rat and channels

10. Online Audio Converter

This online video to audio converter allows for video and audio conversion of different formats. With easy operation window, it leads to direct and pure format conversion.

Online Audio Converter


1. Simple and easy-to-use main interface

2. Add two video or audio files at one go

3. Support various video and audio formats


1. Convert not more than 2 file each time

2. No customized options like bit rate, sampling rat and channels

3. Must convert online with internet

Now you might have figured out what shall choose when converting video or audio to sheet music online. The above-mentioned online apps nearly have one thing in common, namely, you have to finish such conversion tasks with stable internet. Otherwise, you cannot enjoy offline MP3 music as you want. Actually, to resolve such an unexpected situation, you can turn to an alternative desktop tool like DVDFab Video Converter.


From this article, you might have got the best answer on what to use when you are in dire need of downloading audio songs. Just select one online audio converter from the top 10 options as long as you have a steady internet connection. Nevertheless, DVDFab Video Converter will be your last straw when you are in bad internet condition. By the way, do you anticipate a URL to MP3 converter? ACT NOW!

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