Back to homeUpdated on September 29, 2026
Who we are

About Hublabs

What Hublabs is, which tools the site offers, and how to use the results safely.

Hublabs is a free online tools site. The idea is simple: solve quick everyday, study, and software development tasks right in your browser, with no sign-up and nothing to install.

What you will find here

The tools are organized into five categories so you can find what you need by type of task.

  • Calculators: compound interest, BMI, percentage, and a basic calculator.
  • Converters: currencies, units of measurement, dates, and number bases.
  • Generators and formatters: passwords, UUID, fictitious CPF/CNPJ, QR Code, hash, Base64, JSON, SQL, XML, Markdown, Cron expressions, regex, and more.
  • Quick tools: name picker, decision wheel, coin flip, dice roller, and RPG name generator.
  • Light games: sudoku, minesweeper, checkers, memory game, typing test, reaction test, and others.

How the tools work

Most tools process data in your own browser: what you type is used to calculate or generate the result on screen. The currency converter is the main exception, since it queries a public exchange rate service to get reference rates.

Each page explains what the tool is for, how to use it, an example, and its limits. We recommend reading that guidance before using a result in an important decision.


Our care

Results depend on the data you enter and on the rules explained on each page. They do not replace advice from a health, finance, legal, or security professional.

For sensitive data, prefer fictitious examples. Real passwords, tokens, and documents should not be pasted into online tools when an example does the job.


How the site is funded

Hublabs is free and is supported by ads served by Google AdSense. Ads are labeled as advertising and do not affect how the tools work or their results. Details about cookies and advertising are in the Privacy Policy.