Device and Browser Information Checker
Check your operating system, browser, screen resolution, logical CPU count, estimated memory, GPU, and Web API support directly in your browser.
- Browser
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- OS
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- screen resolution
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- Web function
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Browser/OS information
Information about the User-Agent and execution environment published by the browser.
- Browser
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- browser version
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- rendering engine
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- OS
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- OS version
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- platform
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- architecture
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- Device model
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- Mobile judgment
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- Display language
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- TimeZone
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- locale
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- Cookie
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- Online status
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- Do Not Track
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- Global Privacy Control
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- Maximum number of simultaneous touches
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- App display
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- User-Agent
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Screen/display information
CSS screen size in pixels and OS/browser display settings.
- screen resolution
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- Available screen size
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- Display area
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- Browser frame size
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- Device pixel ratio
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- Reference display scale
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- Color depth
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- pixel depth
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- Screen orientation
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- Color mode settings
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- contrast settings
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- motion reduction
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- Force color mode
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- main pointer
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- Hover operation
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Hardware reference information
This is an approximate/reference value published by the browser. This value is not obtained directly from the product specifications.
- Number of logical processors
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- Estimated memory capacity
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- GPU vendor
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- GPU renderer
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- WebGL
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- WebGL 2
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- WebGPU
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Browser storage area
This is an estimate allocated to this site, not the device's total disk capacity.
- Estimated usage of this site
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- Estimated allocation limit
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- persistent storage state
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- LocalStorage
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- SessionStorage
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- IndexedDB
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- Cache Storage
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Web function support status
Check whether each API entrance is available in your current browser. It does not judge the status of devices or permissions.
| Function | Status | Additional information |
|---|
Information that cannot be obtained and points to note
- It is not possible to obtain the PC manufacturer, exact product model number, serial number, CPU product name, number of physical cores, or MAC address.
- Estimated memory, GPU, OS version, etc. may be rounded or hidden depending on browser specifications and privacy settings.
- IP address, region, ASN, and line information are IP Address and Connection Checker Please check.
- Before sharing, enable secure sharing mode and check your inquiry for unnecessary information.
About this tool
List device and browser information needed for inquiries and operation checks without permission requests or external communication, and copy it as safe sharing text.
Features
- Checking the OS, browser, User-Agent, language, TimeZone, and display settings
- Check screen resolution, number of CPU logical processors, estimated memory, GPU, storage area, and Web API compatibility status
- Secure sharing mode and copying in text, Markdown, and JSON formats
How to use
- When you open the page, the browser automatically checks the published device information.
- Check the necessary items while distinguishing between acquired values, judgment values, and estimated values.
- When attaching results to an inquiry, keep safe sharing mode enabled and copy the results in the required format.
Limitations
- PC manufacturer, exact product model number, CPU product name, number of physical cores, serial number, and MAC address cannot be obtained from the browser.
- OS version, estimated memory, GPU, etc. are rounded or hidden depending on browser specifications and privacy settings.
Privacy: Device information is collected, displayed, formatted, and copied in your browser. Results are not sent to or stored on Develop Tools servers. This tool also does not request permissions such as camera, microphone, or location access.