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Audio conversion

Convert FLAC to MP3

Convert your .flac files to .mp3 format online. No software to install.

Convert FLAC to MP3 now

Pro plan required (from €4.99 / $4.99/month).

How to convert FLAC to MP3

1

Upload

Drag and drop your .flac file or click to browse.

2

Choose format

Select MP3 as your output format.

3

Download

Click Convert and download your .mp3 file.

Why convert FLAC to MP3?

FLAC preserves your audio at full quality, but the large file sizes make it impractical for sharing or mobile playback. Converting to MP3 compresses the audio to a fraction of the size while maintaining quality that is good enough for everyday listening.

FLAC vs MP3: technical comparison

FLAC (Free Lossless Audio Codec, introduced in 2001) uses Lossless (linear prediction + Rice coding) compression. MP3 (MPEG Audio Layer III, introduced in 1993) uses Lossy (psychoacoustic model + MDCT) compression. FLAC browser support: All modern browsers (Chrome, Firefox, Edge; Safari 11+). MP3 browser support: Universal.

What happens to quality?

Converting from FLAC (lossless) to MP3 (lossy) will reduce file size significantly, but some quality is permanently discarded during compression. At higher quality settings (80-90%), the visual or audible difference is typically imperceptible. At lower settings, compression artifacts may become noticeable. Always keep your original FLAC file as a master copy.

File size impact

Typical FLAC file size: A 4-minute song at 44.1 kHz/16-bit: ~20-30 MB. Typical MP3 file size: A 4-minute song at 192 kbps: ~5.5 MB; at 320 kbps: ~9.2 MB. Converting from lossless FLAC to lossy MP3 typically reduces file size by 5-10x depending on the quality setting.

Common use cases

  • Creating portable versions of your FLAC music library for mobile devices
  • Preparing audio files for podcast distribution or web streaming
  • Converting audio to the universally compatible MP3 format for maximum device support
Pro tip

Use VBR (Variable Bitrate) encoding at V0 or V2 quality with the LAME encoder for the best quality-to-size ratio. VBR allocates more bits to complex passages and fewer to simple ones, producing better results than CBR at the same average bitrate.

Why use SquishConvert for FLAC to MP3?

Pro plan

Pro plan required (from €4.99 / $4.99/month). No watermarks.

Quick & easy

Create a free account in 10 seconds and start converting immediately. No credit card required.

Where your file goes

Your file is sent over an encrypted connection to our provider CloudConvert, which converts it and deletes it after the conversion, within 24 hours at most. Details in our Privacy Policy.

Works everywhere

Convert files from any device: desktop, tablet, or phone. No software to install, works in any modern browser.

358+ conversions

SquishConvert supports over 358 file conversion combinations across images, documents, audio, and video.

High quality output

Your converted .mp3 file maintains the best possible quality. No unnecessary compression or quality loss.

Audio conversion requires a Pro account. See pricing, from €4.99 / $4.99/month

Frequently asked questions

Is it free to convert FLAC to MP3?

No. Audio conversions need a Pro plan (from €4.99 / $4.99/month), with 100 audio or 20 video conversions a month.

How long does it take to convert FLAC to MP3?

It depends on the file size and on the queue at our provider. Small files usually take a few seconds.

Is my FLAC file safe when converting?

Your file is sent over an encrypted connection to our provider CloudConvert, which converts it and deletes it after the conversion, within 24 hours at most. Details in our Privacy Policy.

What is the maximum file size for FLAC to MP3?

Free users can convert files up to 10 MB. Pro users can convert files up to 500 MB.

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