# Bitwarden Password Manager - Chrome Extension Security Audit & Unpacked ZIP Download

> **CRX8 Security Inspection & Official Download Hub**  
> **Category**: Privacy & Security | **Version**: 2026.2.0 | **Rating**: 4.8 / 5.0 (15600 ratings) | **Users**: 4,000,000+  
> **Safety Score**: 10 / 10 (满分 (端到端零知识加密，全球权威机构审计))  
> **Updated**: 2026年11月04日 | **Package Size**: 9.20 MiB  
> **Official Page**: https://crx8.com/ext/bitwarden-password-manager

## Overview & Verified Verdict
Verified Privacy & Security extension. Security Score: 10/10, Rating: 4.8★ (15600 reviews).

## Permissions & Manifest Security Audit
- **Security Score**: 10 / 10
- **Auditor Verdict**: Low risk. Full compliance with Chrome Web Store MV3 guidelines.
- **Manifest Permissions**: [{"perm":"activeTab","desc":"在当前登录表单自动填充账号密码","risk":"low"},{"perm":"storage","desc":"存储经过 AES-256 加密后的本地密码库缓存","risk":"low"}]

## Key Features & Highlights
- 免费版即支持不限数量的密码保存与 Windows / macOS / iOS / Android 全平台实时同步
- 采用端到端零知识加密（Zero-Knowledge Encryption），连 Bitwarden 官方服务器也无法解密你的数据
- 内置高强度随机密码生成器与两步验证（TOTP）动态口令管理
- 支持 Docker 私有化自建（Vaultwarden），极客数据完全自主可控

## Pros & Cons
### Pros
- 1Password 的最佳免费开源平替，省下每年数百元订阅费
- 支持设置浏览器关闭后自动锁定保险库，防止他人偷看

### Cons
- 主密码一旦遗忘，全球没有任何人能帮你找回（务必妥善备份主密码）

## Recommended Alternatives
- 1Password: 1Password 颜值与交互略胜一筹但纯收费（约 250 元/年）；Bitwarden 核心功能完全免费且开源
- Chrome 自带密码管理: 浏览器自带密码缺乏独立主密码隔离保护，极易被本地恶意软件一键拖库

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