Free Online Tools for Developers & Students

Enhance your productivity with our collection of free web utilities. No installation required!

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BMI Calculator

Calculate your Body Mass Index and understand your health status

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JSON Formatter

Format and validate JSON data with syntax highlighting

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QR Code Generator

Create custom QR codes for URLs, text, and contact information

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BMI Calculator Age Calculator Word Counter JSON Formatter QR Code Generator Base64 Encode/Decode Hash Generator JWT Decoder Lorem Ipsum Generator Password Generator Regex Tester Timestamp Converter UUID Generator XML Formatter

About KaroStudy Tools

KaroStudy Tools provides a comprehensive collection of free web-based utilities designed to help students, developers, and professionals in their daily tasks.

Why Choose Our Tools?

100% Free: No subscriptions or hidden fees
Privacy Focused: All processing happens in your browser
No Installation: Access tools directly from any device
Constantly Updated: New tools added regularly

Who Uses KaroStudy Tools?

Our tools are trusted by:

Students

Developers

Analysts

Professionals