TOOL-003 Chrome Extension Public Alpha

Bullet Buzzer — Audio cues for bullet chess on lichess

Train your bullet response time. Beep. Beep. Beep.

A Chrome extension (Manifest V3) that plays audio beeps at 1s, 2s, and 3s into your turn on lichess.org to help train bullet response time. Toggle in-page; state persists across refreshes.

View source → Installation

Metadata Catalog entry

ID: TOOL-003
Type: Chrome Extension
Status: Public Alpha
Distribution: GitHub-only
License: MIT
Source: github.com/jeanlucaslima/lichess-bullet-buzzer

Functions 3 on file

Turn-time beeps: Audio cues at 1s, 2s, and 3s into your turn.
In-page toggle: Enable or disable the buzzer from a small control injected on lichess.org.
Persistent state: Your on/off preference survives page refreshes.

Distribution Manual install

GitHub-only. No Chrome Web Store listing.

Clone the repository, build with Vite, and load the resulting dist/ folder through Chrome Developer Mode.

Privacy Review source

Runs only on lichess.org.

The content script is scoped to lichess.org pages. No network calls, no analytics. Review the source before installing.

Installation

1. Clone and build

git clone https://github.com/jeanlucaslima/lichess-bullet-buzzer.git
cd lichess-bullet-buzzer
npm install
npm run build

Vite bundles src/content/index.ts into dist/content.js and copies the manifest and beep WAV files from public/ into dist/.

2. Load in Chrome

Open chrome://extensions
Enable Developer mode using the toggle in the top right
Click Load unpacked
Select the dist/ folder

3. Use it

Visit lichess.org and start a game
Use the in-page control to toggle the buzzer on or off
Beeps fire at 1s, 2s, and 3s into your turn

Project structure

src/content/index.ts — content script injected into lichess.org
public/manifest.json — extension manifest
public/beep{1,2,3}.wav — audio assets
dist/ — build output (load this as the unpacked extension)