All tools
What is my user agent?
Your browser, screen and environment, read straight out of this page. Nothing is sent to us.
Your user agent
Browser
Engine
Operating system
Device
What is my screen resolution?
Screen size
Viewport size
Pixel ratio
The rest of your environment
Colour scheme
Timezone
Language
Cookies
Storage
User agent parser
Paste a user agent string from a log, a support ticket or a crash report, and read what it says about the browser it came from.
Browser
Engine
Operating system
Device
This runs in your browser. Nothing you paste or open is sent to us.
This block is attached to every bug report automatically
Session Replay captures exactly what is on this page, alongside the screen, the console and the network log, so nobody has to ask a reporter what browser they were on.