Browser Feature Detector gives you a fast, focused way to report availability of selected modern browser APIs without requesting permissions. Everything runs locally in this tab.
✓ Optimized for analyzer tasks✓ Runs locally✓ Readable analysis summary with copy action
● Runs in your browserLocal files stay on this device · No account
Provide a representative complete value for an accurate report.0 characters
The result is organized into readable findings and metrics.Ready
HOW TO USE IT
Get a reliable result in three steps
1
Provide the complete value or content you want to inspect.
2
Configure any search, parsing, or analysis options shown on the page.
3
Run the analysis and review the organized findings or metrics.
What this tool does
Browser Feature Detector gives you a fast, focused way to report availability of selected modern browser APIs without requesting permissions. Everything runs locally in this tab.
The result is produced only after the input is checked. If the value cannot be processed, the workspace reports a specific error instead of guessing.
Features
Local browser processing
Purpose-built result metrics
Organized findings instead of raw diagnostic data
Prepared representative analysis example
Input and output
Input
text
Output
text
Processing
Local browser
Example
Clipboard, Web Crypto, EyeDropper, File System Access, Web Workers
Limitations
Review important output before using it in production.
Very large inputs remain subject to browser memory limits.