About ToolsZi

Your Free Online Toolbox

Who We Are

ToolsZi.com is a free, open collection of 130+ online tools designed for developers, designers, and everyday users. Our mission is to provide fast, reliable, and privacy-respecting tools that run entirely in your browser.

What We Offer

Our tools span multiple categories:

• Developer Tools — JSON/XML/SQL formatting, Base64 encoding, hash generation, JWT decoding, regex testing, and more
• Text Tools — Word counting, case conversion, Markdown editing, Lorem Ipsum generation
• Image & PDF Tools — Image compression, format conversion, PDF merge/split/convert
• Converters & Calculators — Unit conversion, currency exchange, BMI, loan calculator, date/age calculators
• Network Tools — IP lookup, DNS query, Whois, User-Agent parsing
• Security Tools — Password generator, password strength checker, QR code tools

Privacy First

All our tools process data locally in your browser. Your data never leaves your device — we don't collect, store, or transmit any content you enter into our tools. This is a core principle we will never compromise on.

Bilingual Support

ToolsZi.com is fully available in both English and Chinese (中文), making our tools accessible to a wider audience worldwide.

Technology

Built with pure HTML, CSS, and JavaScript — no frameworks, no heavy dependencies. This means our tools load instantly and work reliably across all modern browsers and devices.

Contact

Have a suggestion, found a bug, or want to say hello? Reach out at [email protected]