FLAC to MP3 Converter

AUTO-DELETE/Files are processed on our server and deleted as soon as conversion finishes.

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How to Convert FLAC to MP3 Online

This tool takes a FLAC file, processes it with FFmpeg on DownloadVideo.vn servers and returns a MP3 file.

FLAC keeps data intact while MP3 is lossy. The file gets much smaller, but the step is one-way — keep your original FLAC.

Property	FLAC	MP3
Full name	Free Lossless Audio Codec	MPEG-1 Audio Layer III
Introduced	Xiph.Org Foundation, 2001	Fraunhofer / MPEG, 1993
Compression	lossless	lossy
Strengths	lossless: identical to the source after decoding; typically 50–70% of the size of WAV	plays everywhere: phones, cars, speakers, browsers; about 1 MB per minute at 128 kbps
Limitations	older iPhones/iTunes and some car stereos do not play it	lossy: removed detail cannot be recovered; less efficient than AAC or Opus at the same bitrate

On September 25, 2026 we ran the tool on our production server with a sample file: 10 seconds of 44.1 kHz stereo audio (FLAC), 247 KB.

Result: 247 KB → 157 KB, processed in 1 s. Output: MP3 audio at 44.1 kHz stereo, 128 kbps.

Real sizes depend on your content (how complex the picture and sound are, and the length); the figures only show the order of change.

The tool always re-encodes the picture and sound, even when the source codec would already fit the target format.
Up to 500 MB per file; a conversion that runs longer than 10 minutes is cancelled.
The file is sent to our server for conversion and deleted as soon as processing ends, including when it fails.

No. Data discarded by MP3 compression is gone. Keep the original FLAC if you may need full quality later.

With our sample file: 247 KB → 157 KB. Your file may differ depending on its content.