User-Agent analysis tool
Check the browser, OS, device type, rendering engine, WebView/Bot possibilities from the UA string.
Enter User-Agent
In addition to pasting, you can load your current browser or a representative sample.
Parse with Ctrl/Command + Enter
Result
For each item, the information source and the accuracy of the judgment are also listed.
Detailed judgment
User-Agent Client Hints
Only used when loading the current browserToken list
| # | token | Version/value |
|---|
Notes on judgment
About this tool
It can be used to investigate User-Agent, check access logs, and organize the environment when making support inquiries.
Features
- Determination of major browsers, OS, device type, and rendering engine
- Android/iOS WebView, in-app browser, bot identification assistance
- Low entropy information for User-Agent Client Hints and detailed information during operations
- Analysis report, JSON, copy of original User-Agent
How to use
- Paste the User-Agent or load the current UA or sample.
- Click "Analyze" to check the value, information source, and judgment accuracy.
- If necessary, click "Get more information" only in your current browser.
- Review the content and copy the report or JSON before sharing.
Limitations
- The User-Agent can be impersonated and the information may be simplified due to browser privacy protection.
- Windows NT 10.0 alone cannot reliably differentiate between Windows 10 and 11.
- We cannot confirm the exact product name, CPU product name, serial number, etc. of the device.
- Client Hints are only available with compatible browsers and secure connections.
Privacy: User-Agent, Client Hints, and analysis results are processed only within the browser and are not sent to the Develop Tools server or third-party services.