FLAC is the go-to format for lossless music archiving, but it's not supported by many portable players, car stereos, or streaming platforms. This converter transcodes FLAC to high-quality MP3 at up to 320 kbps using the LAME encoder — preserving as much of the original FLAC quality as possible in the MP3 format. Processing happens locally in your browser; your audio never leaves your device.
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Up to 500.0 MB per file
Upload your FLAC file
Drop a FLAC audio file. FLAC files range from 20–60 MB per album track at CD quality; this converter handles files up to 500 MB. Hi-res FLAC (24-bit, 192 kHz) is also supported.
Choose your MP3 bitrate
Since FLAC is lossless, start with the highest bitrate for maximum preservation: 320 kbps is our default for FLAC conversion. For portable devices with storage constraints, 192 kbps is a good compromise. Use 128 kbps for voice recordings to minimize file size.
Convert
FFmpeg decodes the lossless FLAC and encodes it as MP3 using LAME at your chosen bitrate. Higher resolution FLAC (24-bit, 192 kHz) is downsampled to 44.1 kHz 16-bit during conversion.
Download the MP3
The MP3 is compatible with every device: iPod classic, car stereos, MP3 players, Android phones, and any audio application.
Starting from a lossless FLAC source, the audible difference between 320 kbps and 192 kbps MP3 is extremely small — most people cannot reliably distinguish them in blind tests. That said, if storage isn't a concern, 320 kbps is the reasonable choice when starting from lossless. It preserves more of the original waveform detail even if the difference is rarely audible.
FFmpeg preserves basic text metadata (artist, title, album, track number) when converting FLAC to MP3. Embedded album art (cover images) may or may not transfer depending on the FLAC tagging — FFmpeg's LAME encoder supports ID3v2 tags with embedded art. If album art is missing, you can add it with a tag editor like MusicBrainz Picard.
MP3 is limited to 16-bit depth and 48 kHz maximum sample rate. When converting from 24-bit or high-sample-rate FLAC, FFmpeg downsamples to 44.1 kHz 16-bit before encoding. This is lossy in terms of the extra hi-res data, but at 320 kbps MP3, the output is still excellent quality for standard listening. For archival purposes, always keep the original FLAC.
Keep your FLAC originals — they're your archive. Convert to MP3 for portable use: loading onto an MP3 player, syncing to a car stereo, or uploading to a service that doesn't accept FLAC. The original FLAC files let you convert again at any future bitrate or format standard.
No. MP3 is lossy — converting back to FLAC from MP3 would just give you an uncompressed file containing the lossy MP3 audio. Always keep the original FLAC as your master copy. This is why we recommend only converting copies, never destroying originals.
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