# Volume Master - volume booster - Chrome Extension Security Audit & Unpacked ZIP Download

> **CRX8 Security Inspection & Official Download Hub**  
> **Category**: Video & Streaming | **Version**: 1.4.2 | **Rating**: 4.8 / 5.0 (58000 ratings) | **Users**: 6,000,000+  
> **Safety Score**: 9.7 / 10 (极佳安全 · 简单高效)  
> **Updated**: 2026年8月19日 | **Package Size**: 260 KiB  
> **Official Page**: https://crx8.com/ext/volume-master

## Overview & Verified Verdict
Verified Video & Streaming extension. Security Score: 9.7/10, Rating: 4.8★ (58000 reviews).

## Permissions & Manifest Security Audit
- **Security Score**: 9.7 / 10
- **Auditor Verdict**: Low risk. Full compliance with Chrome Web Store MV3 guidelines.
- **Manifest Permissions**: [{"perm":"tabCapture","desc":"临时接管当前标签页音频流送入放大滤波器","risk":"中"}]

## Key Features & Highlights
- 通过 Web Audio API 将当前标签页输出音量线性放大最高至 600%
- 支持针对单个标签页独立控制音量，不影响其他网页或系统全局声音
- 快捷键与滑块平滑调节，提供低失真压限算法，最大程度抑制破音爆音
- 一键列出当前所有正在发出声音的标签页并可直接切换过去

## Pros & Cons
### Pros
- 体积不到 300KB，操作极其顺手，听网课与追老剧的救命神器
- 全球超 600 万安装量，性能极其稳定

### Cons
- 放大超过 400% 时如果原音频底噪严重可能会放大杂音，建议适度放大

## Recommended Alternatives
- Global Speed: 更专注于倍速播放控制，附带基础音量调节

## Direct Download (Official Google Stream)
- **Native CRX Format (Official Source)**: [Download .crx](https://crx8.com/download/volume-master.crx)
- **Unpacked ZIP Format (Load Unpacked)**: [Download .zip](https://crx8.com/download/volume-master.zip)


## How to Install Unpacked Extension (.ZIP)
1. Download the `.zip` archive above and extract it to a local folder;
2. Open Chrome or Edge browser, navigate to `chrome://extensions`, and enable **Developer mode** in the top right;
3. Click **Load unpacked** in the top left, and select the extracted folder to run immediately.