About ToolBox

ToolBox is a free web service that brings together essential online tools for everyday life and work. No installation needed — use them directly in your browser.

What do we offer?

• Tools — JSON Formatter, Base64 Encoder, QR Code Generator, Color Converter, Character Counter and more
• Calculators — BMI, Loan Interest, Percentage, Unit Converter, Age Calculator and more
• References — Emoji list, HTTP Status Codes, HTML Entities, Keyboard Shortcuts, Regex Cheatsheet
• Blog — Guides, tips, and tutorials about our tools and related topics

Features

• Completely Free — All tools are free to use without registration
• Privacy First — Your data never leaves your browser. All processing happens client-side
• Bilingual — Available in Korean and English
• Mobile Optimized — Works on phones, tablets, and desktops
• Dark Mode — Easy on the eyes with dark mode support

Contact

For suggestions, bug reports, or tool requests, please visit our contact page.