GK Works

Route tab audio to multiple Bluetooth speakers at once. Free: 2 devices. Pro: 5 devices, L/R split, bass & vocals.

Captures Chrome tab audio and sends it to Audio Splitter Max™ desktop app for multi-device Bluetooth playback.

Shows your global and local IP addresses with one click. Displays location info, ISP details, and supports copying to clipboard.

Play Reversi against AI. Three difficulty levels, compact design, fully offline.

Quickly view and manage all your installed Chrome extensions from a compact popup.

Sudoku puzzle game in your browser. Easy/Medium/Hard, pencil marks, undo, timer. 100% local - no account needed.

Lightweight spreadsheet in your browser. Formulas, range select, CSV/XLS export, Google Drive save. No server, no tracking.

Sticky notes in your browser toolbar. Multiple notes, auto-save, export. 100% local — no account, no cloud.