noiz://

A browser-based 100%-local audio player with real-time spectrum visualization, VU metering, and comprehensive playlist management. Loaded entirely from a single index.html file - no build step, no server, no dependencies. Plays files from your local machine. That's it.

Obligatory Screenshot

Demo

There is a live demo available at bsd.pm/noiz.

Features

• Real-time FFT spectrum analyzer - smooth animated frequency bars with configurable window function (Hanning / Blackman-Harris) and adjustable peak decay
• VU meter - per-channel level display with peak indicators
• Metadata parsing - reads ID3v1 and ID3v2 tags (title, artist, album, genre, year), plus inline codec info for MP3 and FLAC
• Playlist - sortable by title, artist, filename, length, or genre; supports shuffle and repeat (off / all / one)
• Crossfade - optional gapless transition between tracks (1s–5s)
• Drag & drop - drop folders or individual files; handles nested directories via the File System Access API (with webkitdirectory fallback)
• Keyboard shortcuts - Space (play/pause), ← (previous), → (next)

Usage

Open index.html in any modern browser. Click +Folder, +Files, or drag audio files onto the window.

Native App (noiz.py)

noiz.py is a fully fledged local native application wrapper that runs noiz:// in its own desktop window using pywebview. It launches the noiz:// app as a standalone application with native window via Python's webview, rather than running inside a browser tab. noiz.py is (as of now) 8 lines long.

pip install pywebview && python noiz.py