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Wondershare UniConverter

  • Convert MP3 to FLAC, MP4, 3GP and vice versa in batch.
  • Download online videos from YouTube and 10000+ video sites and convert to MP3.
  • Built-in video editor allows to trim, crop, add watermark, apply special effects to videos before converting.
  • 30X faster converting speed without any quality loss on the output files.
  • Versatile toolbox combines fix video metadata, GIF maker, cast video to TV, video compressor and screen recorder.
Convert MP3 to FLAC

MP3 Converter

1. Convert MP3 to Other Format+
  1. 1.1 Convert MP3 to WAV
  2. 1.2 Convert MP3 to OGG
  3. 1.3 Convert MP3 to AA
  4. 1.4 Convert MP3 to M4R
  5. 1.5 Convert MP3 to WMA
  6. 1.6 Convert MP3 to FLA
  7. 1.7 Convert MP3 to AIFF
  8. 1.8 Convert MP3 to WMV
  9. 1.9 Convert MP3 to M4A
  10. 1.10 Convert MP3 to Ringtone
  11. 1.11 Convert MP3 to iTunes
  12. 1.12 Convert MP3 to FCP
  13. 1.13 Convert MP3 to Windows Media Player
2. MP3 Tools & Tips+
  1. 2.1 MP3 Converter for Mac
  2. 2.2 MP3 Converter
  3. 2.3 Free MP3 Converter
  4. 2.4 MP3 Player
  5. 2.5 Best MP3 Players
  6. 2.6 Convert iTunes to MP3
  7. 2.7 CD to MP3 iTunes
  8. 2.8 Convert DVD to MP3
  9. 2.9 Convert Spotify Playlist to MP3
  10. 2.10 MP3 to Text Converter
  11. 2.11 VEVO MP3 Converter
  12. 2.12 YouTube to MP3 Converter for Mac
  13. 2.13 YouTube to MP3 Online Converter
  14. 2.14 YouTube MP3 Converter for Android
  15. 2.15 YouTube Converter to MP3 for Android
  16. 2.16 YouTube to MP3 iPhone
  17. 2.17 Download MP3 to iPhone
  18. 2.18 Convert YouTube Playlist to MP3
  19. 2.19 Free YouTube to MP3 Converter
  20. 2.20 YouTube to MP3 Converter Not Working
  21. 2.21 Export Audacity to MP3
  22. 2.22 Convert MIDI to MP3
  23. 2.23 Convert SoundCloud to MP3
  24. 2.24 Convert Voice to MP3
  25. 2.25 MP3 Sites
  26. 2.26 MP3 Ringtone Maker
  27. 2.27 Upload MP3 to YouTube
  28. 2.28 MP3 Cutter
  29. 2.29 Online MP3 Size Reducer
  30. 2.30 MP3 Tag Editor
  31. 2.31 Save Garageband File in MP3
  32. 2.32 MP3 Recorder
  33. 2.33 Remove Vocals from MP3
  34. 2.34 Clip to MP3
  35. 2.35 Top MP3 Editors
  36. 2.36 Video to MP3 Converters for iPhone
  37. 2.37 Convert link to MP3
  38. 2.38 Video to MP3 Apps for iPhone and Android
  39. 2.39 Free MP3 to MP4 Converter Apps
  40. 2.40 Add MP3 to Video
  41. 2.41 Convert Recording to MP3
  42. 2.42 Free MP3 Song Converters
  43. 2.43 Convert GSM to MP3
  44. 2.44 MP3 Extractors
  45. 2.45 Music to MP3 Converters

2 Recommend Ways to Convert MP3 to FLAC

by Christine Smith • 2022-08-19 16:23:36 • Proven solutions

Some people thought MP3 files degraded over time and opted to convert to FLAC regarding it offers better quality sound. But is this really the case? We're going to scoop the secret of converting MP3 to FLAC in the following 3 parts.

Part 1. Is Converting MP3 to FLAC Good Or Bad Idea

Actually, the idea of converting MP3 to FLAC is meaningless since you will just be increasing the size of your file MP3, consuming more space on your storage with the same sound quality. Another great misconception that needs to be clarified is the issue of MP3 formats degrading. MP3 is a lossy compressed format that suffers original data loss when converted to FLAC, but nothing to do with degrading. However, there are situations forcing you to use a lossless format like FLAC. In that case, you can read on to learn how to convert MP3 to FLAC.

Part 2. All-in-one MP3 to FLAC Converter (Recommended)

While converting MP3 to FLAC, you might consider a media converter that assures zero quality loss or allows you to edit tags on music. Well, look no more since Wondershare UniConverter takes all accounts as it inputs audio formats like MP3, OGG, AAC, WMA, and outputs over 1000 formats like FLAC, AIFF, APE, etc. without any quality loss. Moreover, you can use it to fix video metadata, burn DVD media, and create your own playlist.

Wondershare UniConverter logo Wondershare UniConverter

Your Complete Video Toolbox

video converter ultimate
  • Convert MP3 to 1000+ formats, like FLAC, M4A, AAC, etc.
  • Convert to optimized preset for almost all of the devices.
  • 90X faster conversion speed than any conventional converters.
  • Edit, enhance & personalize your videos file.
  • Burn video to playable DVD with an attractive free DVD template.
  • Download or record videos from video-sharing sites.
  • Versatile toolbox combines fixing video metadata, GIF maker, VR converter, and screen recorder.
  • Supported OS: Windows 10/8/7/XP/Vista, macOS 11 Big Sur, 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
security Security Verified, 5,942,222 people have downloaded it.

How to Convert MP3 To FLAC Step by Step

Now let us have a look at the detailed tutorial on how to convert MP3 to FLAC with Mac version.

Step 1 Open Wondershare UniConverter on your Mac.

Download the program on the official Wondershare website and Install it. After that, go to the Applications folder and double-click on Wondershare UniConverter to open it.

wondershare video converter ultimate main interface

Step 2 Open MP3 file into UniConverter.

On the home window, click on the add files button. You will be able to upload a file from your local folder. You can also directly drag and drop the files to the program.

load mp3 files into uniconverter

Tips: This video converter supports batch conversion; thus, you can upload several MP3 formats at one time.

Step 3 Set Output Format as FLAC.

The imported MP3 file will be displayed on the program. Next, move the cursor to the top right and click on the Output Format. A window will pop up asking you to select the target output format. Click on the Audio icon and a list of audio formats. Scroll through and click on the FLAC format and then select the output quality. You can opt to retain its quality.

choose flac output format as flac

Step 4 Convert MP3 to FLAC by Uniconverter.

When you have done the correct output settings, you can now click on the Start All button, and Wondershare UniConverter will start converting MP3 to FLAC convert the file immediately.

convert mp3 to flac

Part 3. 3 Free MP3 To FLAC Converters Online

Other than using desktop audio converters, do you know that you can convert MP3 to FLAC using online converters? Yes, there are different online converters that you can use to save your day when you have not installed a media converter. In this part, we will introduce you to 3 popular free MP3 to FLAC Converter.

  1. Zamzar
  2. Convertio

1. Zamzar

Zamzar is an audio web-based converter that supports audio formats like MP3, FLAC, M4A, WAV, OGG, APE, MIDi, and much more. Moreover, on this site, you will get free tips on the description of file formats. Here is a quick guide on how to use it.


  1. Upload files from your local folder or download from online that are not more than 100MB.
  2. Choose an audio format as FLAC.
  3. Provide an email address to receive the converted email.
  4. Click on Convert and agree with the terms of Zamzar.
  5. Open your email and download the newly converted FLAC file.

2. Convertio

Convertio is an audio format that allows you to convert MP3 to output formats like FLAC, OGG, AAC, WMA, WAV, CAF, AC3, GSM, AIFF, M4A, and AMR. Other than that, it can also convert images, videos, eBooks, documents, CAD, Vectors, and much more. It is a reliable free online converter that supports the upload of files from your computer, Dropbox, Google Drive, and online sites that are less than 100MB. Here is a how-to convert MP3 to FLAC using Convertio online converter.


  1. Click on Select Files to Converter and upload your desired MP3 file.
  2. Next, choose FLAC as your output format.
  3. Click on Convert to proceed. When the MP3 to FLAC conversion completes, just click on the Download button.

3. is also a free MP3 to FLAC converter that you can use. This program is not only free to use but also has a great user interface. It supports audio output formats like WAV, FLAC, OGG, and APE. Moreover, this audio converter supports batch conversion. Thus you can upload more MP3 files. Furthermore, it allows you to select the output quality of your file before converting it. Here is how to convert MP3 to FLAC using

  1. Visit the website and upload your MP3 file either from your computer or import from online by pasting the MP3 URL file.
  2. Choose FLAC as the output format and select the output quality for your audio.
  3. Click on the Convert button and then download the converted file to your computer.

There you go, you can now converter MP3 to FLAC free using Wondershare UniConverter or use free MP3 to FLAC online converters.

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Christine Smith

Christine Smith

chief Editor

Resource > MP3 Solutions > 2 Recommend Ways to Convert MP3 to FLAC

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