Free Online Tool

HTTP Header Checker

Check HTTP headers of any website instantly. View response headers, status codes, server information, and security headers.

Note

Due to CORS restrictions, this tool may not work for all websites. For full header checking, consider using browser developer tools or server-side tools.

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Profit & Loss Calculator

Calculate profit and loss for your business transactions. Find profit percentage, loss percentage, profit amount, and loss amount instantly. Perfect for traders, retailers, and business owners to analyze sales performance. Supports bulk calculations with quantity input. Free tool for business analysis.

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Calorie Calculator

Calculate daily calorie needs, Basal Metabolic Rate (BMR), and Total Daily Energy Expenditure (TDEE) for weight loss, weight gain, or maintenance. Get personalized nutrition recommendations based on your age, gender, height, weight, and activity level. Free tool for healthy living and fitness planning.

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GPA Calculator

Calculate your Grade Point Average (GPA) from course grades and credit hours. Support for 4.0, 5.0, and percentage-based grading systems. Calculate semester GPA, cumulative GPA, and plan your academic goals. Perfect for college and university students. Free tool with detailed grade analysis.

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IP Address Lookup

Lookup IP address information instantly. Find IP location, ISP, country, city, and network details. Get your own IP address or lookup any IP. Perfect for network troubleshooting and geolocation. Free IP lookup tool.

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Digital Clock

Display current time with a beautiful digital clock. View time in different timezones, customize clock format, and use as a time reference tool. Free digital clock tool with multiple timezone support and customizable display.

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