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User-agent checker

User-agent checker

View your browser’s user-agent string and parsed device details. Great for debugging and compatibility checks. See how websites identify your setup.

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Device TypeDesktop
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Want to scrape data in bulk? Try Thunderbit for free.

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Extract Website Data with AIUse Thunderbit to scrape pages fast and turn messy web content into structured fields. Automate extraction across lists, subpages, and files with a simple workflow.
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Install fromChrome Web Store

Extract Website Data with AI

Thunderbit scrapes data from websites, including paginated lists and subpages, and can also extract from PDFs, docs, and images. Use AI to suggest fields, then structure, categorize, summarize, and format the results into a clean table. Export structured data to Google Sheets, Airtable, or Notion, or download as CSV or JSON. Choose cloud scraping for speed or browser scraping for logged-in pages, and keep workflows running with scheduled scraping.

How to Check User-Agent Using Thunderbit

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STEP 1Download and InstallDownload and install the Thunderbit Chrome Extension from the Thunderbit Chrome Extension Download Page. Once installed, log in or create a free account to get started.
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STEP 2Open ExtensionOpen a browser tab where you want to verify the current session details. Click the Thunderbit Chrome Extension icon to open Thunderbit, then select the "User-Agent Checker" tool and open the "Check My User-Agent" tab. The tool will auto-detect the user-agent string from your current browser session on page load, so no manual input is required.
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STEP 3Click the Check User-Agent ButtonClick the "Check User-Agent" button. Thunderbit will read the auto-detected user-agent string and return a table that includes the full user-agent plus parsed fields such as Browser Name, Browser Version, Operating System, Device Type, and Device Model when available. Review the results, then export the table to Excel, Google Sheets, Airtable, or Notion, or download it as CSV or JSON.

Learn how to check and parse your browser user-agent string

Detect Your Current User-Agent

View the exact user-agent string your current browser session sends to websites, without typing or setup. This helps developers, QA teams, and IT troubleshoot why a site behaves differently across browsers or devices. By showing the raw header value, the tool makes it clear what servers receive, which is useful when diagnosing redirects, feature flags, or browser-specific rendering issues.
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Parse Browser, OS, and Device Details

Convert the raw user-agent into readable fields such as browser name and version, operating system, device type, and device model when available. This is helpful for debugging compatibility problems, validating analytics rules, and confirming what a web app detects during login or checkout flows. When a value cannot be determined, the tool returns null rather than making assumptions.
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Validate QA and Support Workflows

Use the output to reproduce customer issues and document test coverage. Support teams can ask users to open the checker and share the results, then compare against known supported environments. QA can confirm that staging and production identify the same browser and OS, and that device-type detection matches expectations for desktop, mobile, tablet, or bot traffic.
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Audit How Sites Identify Your Device

Check how your environment appears to web servers when testing personalization, localization, or security controls. This is useful for reviewing user-agent based allowlists, bot filtering, and compatibility fallbacks. Teams can also pair the parsed results with Thunderbit exports in spreadsheets or databases to track reported environments across tickets, leads, or customer feedback.
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What users say about Thunderbit

Taryn W.Growth Strategist@Thunderbit changed how I run competitor research. I click 'AI Suggest Fields,' and it builds a clean table across paginated results—no coding, no CSS. Huge time-saver when analyzing product data from long-tail marketplaces.
Miles T.Sales Development ConsultantI use Thunderbit to grab emails and phone numbers from directories. It extracts clean contact info in one click, and exporting to Sheets or Notion takes seconds. No extra setup, no coding—just usable data ready to work with.
Rhea C.E-commerce AnalystThunderbit helps me monitor SKU data across multiple pages. I scrape the listings, then use Subpage Scraping to pull full product specs, pricing, reviews, and stock. The AI organizes everything into columns I define.
Cassian B.Real Estate AdvisorThunderbit's Scheduled Scraper makes real estate tracking easier. I describe the interval in plain English, and it automatically pulls updated listings, prices, and links without touching the setup again. Simple and very practical.
Dorian B.Content & SEO SpecialistI use Thunderbit's Field AI Prompts to clean and tag scraped blog content. It extracts titles, authors, and even suggests categories. Works great across dynamic sites and subpages—perfect for building structured SEO datasets.
Lina K.Marketplace Operations LeadWe track SKUs from niche stores using Thunderbit. Cloud Scraping handles 50 pages at a time, and for login-required sites, we switch to browser mode. It’s fast, flexible, and doesn’t need ongoing maintenance or manual edits.
Jorge F.Inbound Sales ManagerThunderbit’s AI Autofill is a lifesaver. After scraping contact info, I use it to fill lead forms directly in my browser. I just select the tab, and it fills everything using the scraped row. No manual input needed.
Alina D.Freelance ResearcherI rely on Thunderbit for extracting data from PDFs, image-based sites, and infinite scroll pages. It handles messy formats with AI and delivers ready-to-export tables I can send to Google Sheets or Airtable in seconds.
Taryn W.Growth Strategist@Thunderbit changed how I run competitor research. I click 'AI Suggest Fields,' and it builds a clean table across paginated results—no coding, no CSS. Huge time-saver when analyzing product data from long-tail marketplaces.
Miles T.Sales Development ConsultantI use Thunderbit to grab emails and phone numbers from directories. It extracts clean contact info in one click, and exporting to Sheets or Notion takes seconds. No extra setup, no coding—just usable data ready to work with.
Rhea C.E-commerce AnalystThunderbit helps me monitor SKU data across multiple pages. I scrape the listings, then use Subpage Scraping to pull full product specs, pricing, reviews, and stock. The AI organizes everything into columns I define.
Cassian B.Real Estate AdvisorThunderbit's Scheduled Scraper makes real estate tracking easier. I describe the interval in plain English, and it automatically pulls updated listings, prices, and links without touching the setup again. Simple and very practical.
Dorian B.Content & SEO SpecialistI use Thunderbit's Field AI Prompts to clean and tag scraped blog content. It extracts titles, authors, and even suggests categories. Works great across dynamic sites and subpages—perfect for building structured SEO datasets.
Lina K.Marketplace Operations LeadWe track SKUs from niche stores using Thunderbit. Cloud Scraping handles 50 pages at a time, and for login-required sites, we switch to browser mode. It’s fast, flexible, and doesn’t need ongoing maintenance or manual edits.
Jorge F.Inbound Sales ManagerThunderbit’s AI Autofill is a lifesaver. After scraping contact info, I use it to fill lead forms directly in my browser. I just select the tab, and it fills everything using the scraped row. No manual input needed.
Alina D.Freelance ResearcherI rely on Thunderbit for extracting data from PDFs, image-based sites, and infinite scroll pages. It handles messy formats with AI and delivers ready-to-export tables I can send to Google Sheets or Airtable in seconds.

Frequently Asked Questions

Extract Data using AI
Easily transfer data to Google Sheets, Airtable, or Notion
Chrome Store Rating
PRODUCT HUNT#1 Product of the Week
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