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File converter / Audio / Convert to MP3 / FLAC converter / MP3 to FLAC

Convert MP3 to FLAC

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Choose file to convert to .flac
or drag and drop file

You can convert MP3 format file to FLAC as well as to variety of other formats with free online converter.

How to convert mp3 to flac?

How to convert flac to mp3?
Step 1
Upload mp3-file
Select file, which you want to convert from your computer, Google Drive, Dropbox or drag and drop it on the page
Step 2
Select «to flac»
Select flac or any other format, which you want to convert (more 200 supported formats)
Step 3
Download your flac file
Wait till your file will be converted and click download flac -file

Online and free mp3 to flac converter

Fast and easy
Just drop your mp3 files on the page to convert flac or you can convert it to more than 250 different file formats without registration, giving an email or watermark.
Don't worry about security
We delete uploaded mp3 files instantly and converted flac files after 24 hours. All files transfer with secured an advanced level of SSL encryption.
All in the cloud
You don't need to install any software. All mp3 to flac conversions make in the cloud and don't use any resources of your computer.

MP3 Audio File

File extension .mp3
File category audio
Description

MP3 (formally MPEG-1 Audio Layer-3 or MPEG-2 Audio Layer-3) is a digital format for storage of audio files designed by MPEG programmers. It is one of the most required codecs for digital coding. The format is widely used in various file-sharing sites for evaluation downloading.

Due to lossy compression in this audio format, it is possible to compress CD tracks up to 1/10 of their original size while maintaining high playback quality. Moreover, it can be encoded at higher or lower bit rates to adjust the resulting quality. Overtones, which cannot be perceived by a human ear, are removed. Complex algorithms allow for smaller size of tracks. As a result, one compact disk can contain several hundred songs. MP3 is compatible with all most popular operating systems and supported by the most of modern DVD-players and music systems.

Technical details

Prior to MP3 introduction, MPEG-1 had been widely used. That format contained not only audio data, but images as well. MP3 breaks an audio file into parts of the same length. When the processing is over, each part is packed into its own frame. It involves the technology of spectral limit that requires a continuous input signal to provide the use of two adjacent frames.

When spectral deleting is over, the file is to be compressed with mathematic methods. If necessary, compression rate can be changed, even inside the same frame. Files of 128 kbit/s have 11-fold compression. Further reduction of the file size will lead to significant deterioration in sound quality.

Programs
Microsoft Windows Media Player
VLC media player
MPlayer
jetAudio
Zune
Audacity
Apple iTunes
Plex Media Center
Amarok
Xine
Totem
Developer Moving Picture Experts Group
MIME type
audio/mp3
audio/mpeg3
audio/mpg
audio/mpeg
audio/x-mpeg
audio/x-mpeg-3
audio/mp3
audio/x-mpegaudio
audio/x-mpg
audio/x-mp3

Free Lossless Audio Codec

File extension .flac
File category audio
Description

A free codec developed for lossless compression of audio content that does not exclude information from the stream. It allows for listening to musical compositions with professional sound reproduction systems, as well as for track archiving. FLAC files are being played by portative audio players, supplied by the most of specialized programs, and are represented in huge variety of hardware implementations. They allow users to copy CD tracks without deterioration in sound quality.

Technical details

Since streaming is being coded with an increased speed, FLAC files are often less than half of the original track. However, this does not affect the track quality, and therefore the format is popular for online translations and real-time coding. FLAC can support samples with a static point within the range of 4-32 bit per sample and sampling frequency of 655.3 KHz. If new fields arrive, decoders are not being affected.

In order to change FLAC format, one may use Sound Forge or Adobe Audition. In addition to that, some smartphones can easily work with such files.

Programs
СomboPlayer
VLC media player
Winamp
Foobar2000
Cog
MacAmp Lite X
aTunes
Developer Josh Coalson, Xiph.Org Foundation
MIME type
audio/flac

FAQ

❓ How can I convert mp3 to flac?
Firstly, select a mp3 file you want to convert or drag and drop it. Secondly, select flac or any other format you want to convert your file to. Then click convert and wait until your file is converted
⏳ How long should I wait to convert mp3 to flac?
audio conversion usually takes a few seconds. You will convert mp3 to flac very quickly.
🛡️ Is it secure to convert mp3 to flac on OnlineConvertFree?
Sure! We delete your uploaded and converted files, so nobody has access to your information. All types of conversion on OnlineConvertFree (including mp3 to flac) is 100% safe.
📱 Can I convert mp3 to flac without software installation?
Absolutely! OnlineConvertFree doesn’t require installation. You can convert any files (including mp3 to flac) online on your computer or mobile.