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1. Convert FLAC to Other Formats +
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2. Convert Other Formats to FLAC +
  1. 2.1 Convert APE to FLAC
Best FLAC Converter to convert FLAC file to any video or audio format easily.

Top 5 FLAC Converter Online and Free You Can Try

by Christine Smith • 2024-01-11 10:28:09 • Proven solutions

To convert your audio and video files to FLAC or vice versa, a good conversion tool is required. You can opt for professional desktop software or can go for an online tool when basic features are needed. To help you choose, we have shortlisted the best FLAC Converter online and free as below.

Part 1. The best alternative to FLAC converter online

Online programs are good for basic conversion but have limitations like internet dependence, limited file size, no batch processing, and limited additional features. So, if you are looking for a powerful program that allows converting files in lossless quality and with additional features, Wondershare UniConverter works as the best alternative. Supporting Windows and Mac, this desktop software allows conversion in over 1000 formats including FLAC, and at a fast speed. Batch processing and lossless quality conversion can be done with an option to edit the file parameters.

  • Allows lossless quality conversion in more than 1000 formats
  • Batch processing support at a super-fast speed.
  • Built-in editor to trim, crop, cut, add effects, and add watermark to the files.
  • Video recording, compression, transfer, and other additional features supported.
  • 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.

Steps to convert to FLAC using Wondershare UniConverter:

Step 1 Add the files to be converted.

Open the software on your system and select from the Converter option from the main interface. Click on the add files icon or the + sign to browse and import the local files.

Add .flac files to UniConverter

Step 2 Choose FLAC as the target format.

Expand the drop-down menu at the Output Format tab at the bottom left corner and select FLAC from the Audio list. Also, select the file quality.

Choose FLAC as the output format

Step 3 Convert files to FLAC.

At the File Location tab, select the folder to save the converted files on the desktop. Tap on the Start All button to start converting the files. The Finished tab can be used to check the files on the interface.

Convert FLAC with UniConverter

The above steps are for the files to FLAC conversion. To convert FLAC to other formats similar steps can be used.

Part 2. Other 4 online video to FLAC converters

A list of other 4 online tools for converting video to FLAC is enlisted below.

1. Online Audio Converter

Using this online tool video files in popular formats can be added from the computer, URL, Google Drive, and Dropbox to the interface. In addition to FLAC, the added files can be converted to WAV, M4A, OGG, and other popular formats. There is an option to choose the target file quality and also edit the parameters like bit rate, sample rate, and channels. You can even fade-in and fade-out the files.

Online Audio Converter


  • Add and save files to the local system as well as cloud storage
  • This free FLAC online converter can edit file parameters
  • Select output file quality


  • Internet dependency
  • Converted files have to be downloaded

2. Online Convert

Add your video files from the cloud storage, computer, or using a link to this program for conversion to FLAC. A maximum of 3 files can be converted at a time and there is an option to change the sample rate, bit rate, and channels. You can even normalize the file and trim the audio. Save the conversion settings if you need them for future files.

Online Convert


  • Change in file parameters
  • This online video to FLAC converter has an option to save the conversion settings


  • Only 3 files at a time can be converted
  • Dependent on the internet connection

3. Online Converter

For converting video to FLAC, this is a simple tool to use that allows adding up to 200MB of files. You just need to add the files to be converted and select the target format. After the files are uploaded and converted, they are downloaded to your system.

Online Converter


  • Simple interface
  • No software download or installation is needed
  • Converted files are automatically downloaded to the computer.


  • 200MB is the maximum supported size
  • Slow file upload speed

4. Zamzar

Online and local files up to 50MB can be added to this online tool for conversion to FLAC and other popular file types and formats. The interface is user-friendly and the converted files can be either downloaded to the local system or can be received on an email.



  • Using this online converter FLAC tool can be used to add local and online files
  • Simple and user-friendly interface
  • Get converted file download link on mail


  • Files up to 50MB can be added
  • No option for file editing

Part 3. Comparison table among these 5 online converters for FLAC

Above we have discussed 5 online tools. The table below compares these tools on various parameters that will help you to make the choice.

Features/Tool Online Audio Converter Online-Convert Online Converter Zamzar
Format support Wide range of key formats All key formats Key formats All key format
Batch processing Yes 3 files at a time Multiple files up to 200MB Multiple files up to 50MB
Change in parameters Yes, sample rate, bit rate, and channels can be edited Yes, sample rate, bit rate, and channel No No
Quality settings Choose output file quality No No No
Files import From the computer, URL, Google Drive, and Dropbox Computer, URL, Google Drive, and Dropbox Local files only Local and online
Additional features Save output files to cloud and desktop and also in a zip file Save conversion settings Files are downloaded to your system after the conversion Get converted file download link on mail


Converting FLAC files can be made quick and hassle-free using one of the above-listed tools. Wondershare UniConverter is best for quality conversion and batch processing. Online tools can be used when smaller files in limited numbers have to be processed without any requirement for additional features.

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Christine Smith

Christine Smith

chief Editor

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