About us
Useful tools, built to get it done fast
Util_Kit brings together 31 tools for small, frequent tasks: converting a unit, generating a strong password, validating a document, simulating a loan or formatting JSON.
It started from a practical need: stop hunting for a different, ad-heavy website for every micro task of the day. Everything lives in one place, with one visual language, in Portuguese or English.
All processing happens in your browser. No text, number or file is sent to a server, which keeps the tools fast and private by default. No sign-up, no usage limits, no ads.
Behind the project
Util_Kit is maintained by DB3 Nexus, which builds digital solutions, automations and management tools for companies. If you need something custom — integrations, dashboards or internal systems — get in touch.
Visit db3nexus.com.brWhat we believe
Privacy by default
Your data stays in the browser. No accounts, no tracking.
Auditable results
Finance calculators show formulas and intermediate steps.
Fast and direct
One tool per page, no pop-ups, no unnecessary steps.
Bilingual
The whole interface in Portuguese and English, one click away.
Categories
- Everyday
Utilities for daily tasks: passwords, QR codes, documents, dates and time tracking.
6 tools
- Converters
Convert units, temperatures and colors between formats with instant precision.
4 tools
- Finance
Selling price, payback, IRR and NPV, Price and SAC loans, scenario comparison, opportunity cost and equivalent rates.
8 tools
- Math
Percentages, rule of three, compound interest and BMI calculated instantly.
4 tools
- Text
Analyze, transform and generate text: counting, casing, accents and Lorem Ipsum.
4 tools
- Development
JSON, Base64, URL, UUID, hash and number bases for technical work.
5 tools