A native macOS audio converter. Eight formats. Metadata preserved. LUFS-accurate. No cloud, no account, no tandem losses.
Built to move
files, not bits.
Eight Formats
Converts between AAC, ALAC, FLAC, MP3, Opus, Vorbis, WAV, and AIFF. Native AudioToolbox for Apple formats; sbooth binary xcframeworks for LAME, Ogg, Opus, and Vorbis. No transcoding quirks, no proprietary containers.
Metadata Preservation
Title, artist, album, track number, disc, year, composer, and genre round-tripped across formats. Album art carries through to AAC and ALAC. iTunes, ID3, and Vorbis Comment dialects all read correctly.
LUFS Normalization
ITU-R BS.1770-4 K-weighted loudness with absolute and relative gating. Target any level from -30 to 0 LUFS, or use peak or RMS instead. Gain is computed before encoding so nothing clips on the way out.
Silence & Fades
Detect and trim leading and trailing silence with a configurable dBFS threshold. Fade in and fade out by seconds. Applied in the same pass as the normalization gain — no extra reads, no temp files.
Cue Sheet Splitting
Drop a .cue alongside a single-image FLAC or WAV and the converter emits per-track outputs with the cue sheet’s metadata applied. One pass, deterministic output.
Bluetooth Max Preset
A built-in preset that matches the Apple Bluetooth ceiling exactly: ALAC at 44.1 kHz, 16-bit, stereo. Every bit reaches your headphones over AAC-LC; nothing higher survives the iOS audio graph anyway.
Watch Folders
Point the converter at a folder and it processes new files automatically. Runs entirely offline. Designed for rip-and-forget workflows.
Presets & History
Save any configuration as a named preset. Every conversion is recorded in history with source, destination, format, and duration. Verification mode re-reads output to confirm decodability.