MP3 to MP4 Online Converter

Convert your MP3 file to MP4 format in simple 3 clicks.

Step 1 - Select a file(s) to convert
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Step 2 - Convert your files to
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Step 3 - Start converting
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Your file will be uploaded to DigitalOfficePro storage. By using this service, you agree to the DigitalOfficePro Terms of Use.

Convert your MP3 File to MP4 Format

Our free MP3 to MP4 online converter is the easiest way to convert MP3 files to MP4 format. The best online web-based app to transform MP3's into high-quality MP4 format within seconds. No file size limit and no registration or login required. Choose your MP3 file, click convert, then download your converted file without the burden of installing additional software on your PC. Our free online MP3 to MP4 converter is 100% secure and super fast and also works on all computers and mobile devices with active internet access - regardless of the operating system you have.

MP3
  • File extension
  • .mp3
  • Category
  • AUDIO
  • Description
  • Files with .mp3 extension are digitally encoded file formats for audio files that are formally based on the MPEG-1 Audio Layer III or MPEG-2 Audio Layer III. It was developed by the Moving Picture Experts Group (MPEG) that uses Layer 3 audio compression. Compression achieved by MP3 file format is 1/10th the size of .WAV or .AIF files. The format gives advantages of streaming such audio files over the internet for listening online that was previously not possible due to the large file sizes of audio files. Sound quality of an MP3 audio file can be controlled by parameter settings such as bit rate, sample rate, joint or normal stereo.
  • Actions
  • MP3 Converter
  • Technical Details
  • Associated programs
  • RealOne,WinAmp,Windows Media Player,iTunes,Real Player
  • Developed by
  • Moving Picture Experts Group
  • MIME type
  • audio/mp3
MP4
  • File extension
  • .mp4
  • Category
  • VIDEO
  • Description
  • MP4(short for MPEG-4 Part 14) is a file format based on ISO/IEC 14496-12:2004 that is based on QuickTime File Format but formally specifies support for Initial Object Descriptors (IOD) and other MPEG features. It is mostly used to store video and audio but can also be used to store subtitles and still images. MP4 files are stored with the .mp4 extension. MP4 is an international audio-visual coding standard. Similar to most modern container formats, MP4 supports streaming over the internet. Due to the high compression used in MP4, the resultant files are smaller in size with almost all the original quality retained.
  • Actions
  • MP4 Converter
  • Technical Details
  • Associated programs
  • Real Media Player,WinAmp,Windows Media Player,iTunes,VideoLAN VLC Media Player
  • Developed by
  • Moving Picture Experts Group
  • MIME type
  • video/mp4

Free MP3 File Conversion Tools

Free to Everyone

Absolutely FREE online service. There is no extra cost to use it. You can convert as many files as you like. No need to downloading and installing additional apps/extension on your computer.

100% Secure

We are not storing your content on our servers. Your files are automatically deleted from our servers instantly after the conversion process. We guarantee file security and privacy.

High Speed Conversion

Your files are converted using our powerful conversion servers. In most of the cases, the conversion process takes less time than it would take if you used your computer.

No Limitations

Unlike other services, our online service has no limit on the number of files you can convert. Convert as many as you want. You don’t even need to register or login to our website.

Quality Output

We are using high quality conversion algorithms, so you won't lose quality during the file conversion. Your converted output file retains same quality and effects of original file.

Support 100+ Formats

We supports more than 200 file formats, more than any other online converter and the number keeps growing. Support nearly all document, image, video, audio and ebook formats.