Welcome to Leonardo's Multi-Tool Website

Choose a tool to get started:

Slufigy

Slugify String

Link Inserter Tool

Insert links into your HTML content

Spin the Wheel

Spin random choice

BMI Calculator

Textcase Converter

Super clock

Clock 5 minutes interval

Countdown clock

Countdown clock when boring

Compound Interest Calculator

Calculate how your investments can grow with compound interest and regular contributions

GPA Calculator

Calculate GPA

GPA Planning Calculator

Planning the desired GPA

Random Number Generator

P-value Calculator

Age Calculator

Virtual Dice Roller

Salary Calculator

Calculate Your Pay

Decision Maker

Random Choice Tool

Coin Toss Tool

Quick and Fair Decision Making

QR Code Generator

Create QR Codes for Text, URLs, and More

Online Regex Tester and Debugger

Support for JavaScript, PHP, and Python

Text Diff Tool

Compare Two Versions of Text

JSON Formatter

Online JSON Beautifier Tool

JSON Validator

Online JSON Validator Tool

Length Converter

Online Unit Conversion Tool

Data Size Converter

Online Storage Unit Conversion Tool

Temperature Converter

Online Temperature Unit Conversion Tool

Area Converter

Online Area Unit Conversion Tool

Weight Converter

Online Weight and Mass Unit Conversion Tool

Volume Converter

Online Volume Unit Conversion Tool

Luck Estimator

Test Your Gacha Luck

Enhanced Luck Estimator

Animated Luck Tester

Luck Gauge

Test Your Fortune

Noughts and Crosses

Tic-Tac-Toe Game

Date Difference Calculator

Calculate the exact difference between any two dates