系统
设备能力检查器
检查您的浏览器公开了哪些设备功能，包括媒体、输入、图形、存储和传感器。
隐私: 能力检查是本地的，不请求摄像头、麦克风或位置访问。
界面标签和工具名称已翻译。此页面上的详细指南和常见问题解答目前以英文编写。
测试接口
按“开始”后，您的浏览器可能会请求许可。按开始开始。
运行能力检查—
功能检查显示浏览器是否公开 API，而不是显示您是否已授予权限或硬件是否正常工作。某些 API 仅限于 HTTPS 或特定浏览器。
如何使用这个工具
- Click Run capability check.
- Review the grouped results for supported and unavailable features.
- Use the notes to understand why a feature may be missing.
- Copy the summary if you are troubleshooting with support.
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技术说明
The checker tests for API presence and, where safe, creates a minimal object or worker to confirm usability. It deliberately avoids triggering permission prompts.
API presence is not proof of hardware quality. A browser can expose a capability that is disabled by policy, missing a physical device, or limited by the current secure-context state.
故障排除
A supported device shows missing features
Check the browser version, secure-context status, and enterprise policies.
Media features look unavailable
Media APIs may require HTTPS and user permission before a device is exposed.
Storage quota looks low
Private browsing and storage pressure can reduce the reported quota.
Results differ between browsers
Browsers implement different subsets of web APIs.
相关工具
常见问题
No. It checks API availability without opening camera, microphone, or location streams.
No. It reports what the browser exposes, not hardware health.
No. Copy or download it manually if needed.
Mobile browsers often limit APIs for battery, privacy, or platform reasons.
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