User Agent Parser
Parse user agent strings to browser, OS, and device details.
Free online tool. No signup required. All processing runs in your browser.
About this tool
Paste a User-Agent string to instantly see parsed details such as browser, version, OS, engine, and device type. Useful for debugging analytics, logging, and conditional behavior in applications.
What is User Agent Parser?
The User-Agent HTTP header is a string that identifies the client (browser, operating system, and sometimes device). A parser extracts structured information like browser name, version, OS, and device type.
How to use User Agent Parser
- Paste a User-Agent string or use your current one.
- View parsed browser, OS, and device details.
- Copy or use the structured output.
Examples
Example input
Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/120.0.0.0
Example output
Browser: Chrome 120, OS: Windows 10, Device: Desktop
FAQ
Can user agents be spoofed?
Yes. User-Agent strings can be easily modified, so they should not be relied on for security decisions.
Why is the User-Agent string so long?
It includes browser, engine, OS, and compatibility details. Parsers simplify it into readable information.
Are these tools free?
Yes. All tools on DevToolsHub are free to use.
Does the tool store my data?
No. Processing happens in your browser. We do not store or send your input to any server.
Can I use the output in production?
Yes. Use the result as you like; we do not claim any rights over the output.