A native macOS MP3 player with a dot-matrix, instrument-panel aesthetic.
Pure-black bento panels, a hand-built 5×7 dot-matrix font, an FFT spectrum, and a single splash of red — built entirely in SwiftUI.
- Dot-matrix display — a custom 5×7 dot font renders the wordmark, the now-playing title (with marquee scrolling for long names), and the big transport time readout.
- Live FFT spectrum —
AVAudioEngine+vDSPdrive a 16-band, pixel-style analyzer with a spectral tilt so the bars stay balanced across the range. - Full transport — play/pause, prev/next, a dotted scrubber, and a dotted volume strip, all with "slam-and-settle" press animations.
- Shuffle & repeat —
SHUF,LOOP(repeat-all), andLOOP·1(repeat-one). - Queue management
- Drag & drop audio files from Finder anywhere in the window.
- Drag rows to reorder (with an orange drop indicator).
- Single-click to select, double-click to play.
- Right-click → Remove from Queue, or CLEAR the whole list.
- Pixel toggle switch — slide the queue panel in and out.
- Persistent library — your queue, the selected track, and volume are restored on the next launch via security-scoped bookmarks (sandbox-safe).
- Metadata & artwork read via
AVAsset.
DotMP3 follows the "Nothing" design language: a near-black panel, off-white lit dots over
faint ghost dots, Space Mono / Space Grotesk typography (with monospaced fallbacks),
a 16px bento grid, and the brand red used exactly once — the blinking status dot that
pulses while audio is playing.
- macOS 14.0+
- Xcode 16+ (Swift 5)
- XcodeGen (
brew install xcodegen) to generate the project
xcodegen generate
open DotMP3.xcodeproj # then ⌘R in XcodeOr from the command line:
xcodegen generate
xcodebuild -project DotMP3.xcodeproj -scheme DotMP3 -configuration Debug build- Add music — drag audio files into the window, or use File → Open Files… (⌘O).
- Supported formats: MP3, M4A, AAC, WAV, AIFF, FLAC.
- The demo screenshot uses Dawn of Change by Bensound.
MIT