convt

Convert MP3 to FLAC Online Free

Convert MP3 to FLAC instantly in your browser. No uploads needed - your files stay private on your device.

drag & drop files here

or click to browse

images, videos, audio, documents - all processed locally

Why convert MP3 to FLAC?

  • ✓FLAC preserves full audio quality without compression loss
  • ✓Ideal for archiving and professional audio production
  • ✓Maintain the highest possible audio fidelity
  • ✓Required for professional mastering and editing

How to convert MP3 to FLAC

1

Upload your file

Drag and drop your MP3 file onto the converter, or click to browse your files.

2

Select FLAC as output

Choose FLAC from the format dropdown. The converter will automatically detect your file type.

3

Convert instantly

Your file is processed entirely in your browser using WebAssembly. No upload needed.

4

Download your file

Click the download button to save your converted FLAC file.

About MP3 format

MP3 is the most recognized audio format worldwide, revolutionizing digital music distribution. Using lossy compression, MP3 achieves small file sizes while maintaining acceptable audio quality for most listeners. Its universal compatibility makes it the safest choice for sharing audio across any platform.

Pros

  • +Universal device and software support
  • +Small file sizes for distribution
  • +Widely understood by all users

Cons

  • -Lossy compression reduces audio quality
  • -Not ideal for professional audio
  • -Limited metadata compared to newer formats

About FLAC format

FLAC is the leading lossless audio compression format, reducing file sizes by 50-60% while preserving perfect audio quality. Open-source and royalty-free, FLAC is the choice of audiophiles and music collectors who refuse to compromise on sound quality. It supports high-resolution audio up to 32-bit/192kHz.

Pros

  • +Lossless compression with smaller sizes than WAV
  • +Open source and royalty-free
  • +Supports high-resolution audio

Cons

  • -Larger than lossy formats
  • -Limited portable device support
  • -Overkill for casual listening

Frequently asked questions

Is it safe to convert MP3 to FLAC online?↓
Yes, Convt processes your files entirely in your browser using WebAssembly. Your files never leave your device - no data is uploaded to any server. This makes it completely private and secure.
How long does MP3 to FLAC conversion take?↓
Conversion is typically instant for small to medium files. Larger files may take a few seconds depending on your device's processing power. Since everything runs locally, speed depends on your hardware rather than internet connection.
Is there a file size limit for conversion?↓
There's no artificial file size limit. However, very large files (over 500MB for video, 100MB for images) may strain your browser's memory. For best results, ensure you have enough available RAM.
Do I need to install any software?↓
No installation required. Convt runs entirely in your web browser. It works on any modern browser including Chrome, Firefox, Safari, and Edge on desktop and mobile devices.
Can I convert multiple files at once?↓
Yes, you can add multiple files to the converter and process them all. Each file will be converted individually and you can download them separately or together.
Will converting affect the audio quality?↓
Converting to FLAC preserves full audio quality as it's a lossless format.

Related conversions

FLAC→MP3reverseMP3→WAVMP3→OGGMP3→AACMP4→FLACWEBM→FLAC