About Us
Learn what Kongzi Business Web is, which utilities it covers, and the principles behind its content.
Who we are
Kongzi Business Web is a free online toolbox for readers worldwide, currently covering 2226 utilities across 20 categories: development, encryption, text, images, unit conversion, date and time, everyday life, webmaster, study, QR codes and media.
The goal is simple: turn small but frequent tasks into pages you can open, use and leave — no signup and no nagging. Every tool aims to be clean, accurate and usable on a phone.
Editorial principles
- Local by default. All processing happens in your browser; input is never uploaded.
- Every tool explains itself. Each page ships with a description, steps and an FAQ rather than a bare input box.
- Multilingual parity. Every tool is available in 14 languages with matching content.
- No overclaiming. We avoid promises we cannot verify and note limits where they exist.
How the tools are organised
The collection is split into 20 categories: Developer Tools, Encryption & Hashing, Text Utilities, Unit Converters, Date & Time, Image Tools, Color & Design, Everyday Life, Webmaster & SEO, QR & Barcode, Media & Documents, PDF Tools, Study & Reference, Math & Geometry, Physics & Chemistry, Finance & Money, Statistics, Health & Medical, Divination & Folklore, Engineering. Browse by category from the home page, or filter everything on the all-tools page.
Feedback
If a result looks wrong or you want a new utility, tell us through the contact page. Correctness issues are fixed first.