Parse and analyze user agent strings to extract OS, browser, engine, and device details.
How to Use User Agent Parser
Paste a user-agent string from your server logs, or leave it blank to see your own browser's user agent parsed automatically.
Click "Parse" to break it down into browser name/version, engine, OS, and device type.
Read the structured result fields directly - no further action needed.
Key Features & Practical Use Cases
Parsing confusing browser user-agent strings into clear OS, browser, and device metrics.
Debugging mobile device rendering issues by checking the exact browser engine version.
Extracting analytics details from server request logs automatically.
Frequently Asked Questions
Can it parse user agents from bots and crawlers, not just browsers?
Yes - common bot signatures (like Googlebot) are recognized and labeled as such rather than misclassified as a regular browser.
Why does my own user agent look unfamiliar?
Modern browsers increasingly "freeze" or generalize parts of their user-agent string for privacy - this is expected behavior on recent Chrome/Firefox/Safari versions, not a tool error.
Is this useful for detecting mobile vs desktop visitors?
Yes, the parsed "device type" field distinguishes mobile, tablet, and desktop, which is handy for debugging responsive layout issues.
About OneClickly
OneClickly offers 100+ premium online tools for PDF operations, image compression and conversion, text utilities, calculators, and developer tools. All tools run 100% in your browser - no file uploads, no data collection, maximum privacy guaranteed.