How to Use the User-Agent & Client Hints Parser
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1
View your current browser's active User-Agent string automatically populated.
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Paste any foreign User-Agent string (e.g. Googlebot, iPhone Safari, iPad, Firefox Linux, Edge) or select from popular presets.
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Review the parsed breakdown: Browser family & major/minor versions, Operating System & architecture, Rendering engine (Blink/Gecko/WebKit), and Device classification.
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Inspect User-Agent Client Hints (Sec-CH-UA) if supported by your browser.
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Copy formatted JSON breakdown with a single click.
Practical Example & Use Case
Common Real-World Scenario
Debugging server-side mobile redirection logic or web crawler routing by parsing log headers from incoming HTTP requests.
Technical Notes & Limitations
Browser Engine Architecture
Modern browsers are gradually freezing User-Agent strings to curb fingerprinting, replacing them with structured Sec-CH-UA Client Hints.
Frequently Asked Questions
What is the difference between User-Agent and Client Hints?
The classical User-Agent is a single legacy string containing historical tokens. Client Hints provide granular, opt-in HTTP request headers for specific details like platform and architecture.