MP3 to FLAC
Converts an MP3 audio file to FLAC format.
How to Convert MP3 to FLAC Online for Free
Upload Your MP3 File
Drag and drop your MP3 file, or click to select it.
Wait for Conversion
On first use, your browser downloads the conversion engine; then audio converts directly on your device.
Download your FLAC file
Press the conversion button and download the resulting file.
Why convert MP3 to FLAC on PDFDocks?
FLAC is a lossless audio format, appreciated by audiophiles and high-end sound systems. PDFDocks converts your file directly in your browser, without uploading it to any server.
Is it safe to convert MP3 to FLAC online with PDFDocks?
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Yes. Your file is never uploaded to a server: the conversion happens directly in your browser.
Does converting my MP3 to FLAC improve its quality?
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No. FLAC cannot recover audio quality that was already lost when creating the original MP3 — it simply stores the same audio without further compression, with no real quality gain.
So what's the point of this conversion?
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It's useful if you need the file in FLAC format for compatibility with specific software or equipment that only supports that format, even though the audio content itself won't improve.
Do I need to install any software?
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No, there's nothing to install. It works directly from your browser.
Is there a file size limit?
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We haven't set any artificial limits. The only real limit is your device's memory and processing power.
Does it work on mobile?
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Yes, although on devices with less memory the conversion may be slower.
Audio
FLAC to WAV
Converts a FLAC audio file to WAV format.
MP3 to WAV
Convert an MP3 audio file to WAV format without additional quality loss.
MP3 to OGG
Converts an MP3 audio file to OGG (Vorbis) format.
FLAC to MP3
Convert a FLAC audio file to MP3 format.
WAV to MP3
Convert a WAV audio file to MP3 format.
OGG to MP3
Convert an OGG audio file to MP3 format.
MP4 to MP3
Extract the audio from an MP4 video and convert it to MP3 format.
