Convert lossless FLAC to compact, compatible MP3 with source-aware quality presets, precise bitrate/sample-rate/channel control, optional trim, peak normalization, smooth fades, Vorbis-comment metadata carry-over, batch ZIP export and output verification — your audio stays on your device.
Conversion queue0 / 12
Add FLAC files to begin.
Audio processing stays in this tab. The pinned open-source LAME encoder code loads from jsDelivr with an unpkg fallback; your audio itself is never uploaded by this tool.
Guardrails: up to 12 files, 600 MB total input and 60 minutes per file. MP3 outputs are structurally verified before download.