Todas as ferramentas online grátis
Explore a coleção completa do ToolHub. Todas as ferramentas são gratuitas e explicam como o resultado é calculado ou processado.
Mortgage Calculator
Calculadoras financeiras
Estimate monthly payments, total interest, and payoff costs.
Loan Calculator
Calculadoras financeiras
Calculate fixed monthly payments and the true cost of borrowing.
Salary Calculator
Calculadoras financeiras
Convert annual salary into monthly, weekly, and hourly pay.
Percentage Calculator
Calculadoras matemáticas
Solve percentages, percentage change, tips, discounts, and more.
Scientific Calculator
Calculadoras matemáticas
Calculate trigonometry, powers, roots, logarithms, and everyday expressions.
Age Calculator
Data e hora
Find an exact age in years, months, and days.
Date Calculator
Data e hora
Count days between dates or add days to a start date.
BMI Calculator
Saúde e bem-estar
Calculate body mass index and understand the result range.
GPA Calculator
Ferramentas para estudantes
Calculate weighted grade point average across your classes.
QR Code Generator
Outras ferramentas
Create a crisp, downloadable QR code for any link or text.
Image Compressor
Ferramentas de imagem
Reduce image file size in your browser without uploading files.
Investment Calculator
Calculadoras financeiras
Project growth from an initial investment and regular contributions.
Calorie Calculator
Saúde e bem-estar
Estimate daily calorie needs using the Mifflin-St Jeor equation.
Body Fat Calculator
Saúde e bem-estar
Estimate body fat percentage using the U.S. Navy method.
Pregnancy Calculator
Saúde e bem-estar
Estimate a due date from the first day of the last menstrual period.
Fraction Calculator
Calculadoras matemáticas
Add, subtract, multiply, and divide fractions.
Triangle Calculator
Calculadoras matemáticas
Find a triangle's area and missing side using two sides and an angle.
PDF to Word
Conversores
Extract readable PDF text into a downloadable Word document.
PDF to Excel
Conversores
Extract PDF text into a downloadable CSV spreadsheet.
Image Converter
Conversores
Convert images between PNG, JPEG, and WebP in your browser.
Unit Converter
Conversores
Convert common length, weight, temperature, and volume units.
Resize Image
Ferramentas de imagem
Resize an image to exact pixel dimensions locally.
Convert Image
Ferramentas de imagem
Export an image as PNG, JPEG, or WebP.
Remove Background
Ferramentas de imagem
Make a simple solid-color image background transparent locally.
Word Counter
Texto e escrita
Count words, characters, sentences, and reading time.
Paraphrasing Tool
Texto e escrita
Create a simple local paraphrase using readability-focused substitutions.
Grammar Checker
Texto e escrita
Find common spacing, capitalization, and punctuation issues.
Text to Speech
Texto e escrita
Read text aloud using your browser's speech engine.
AI Summarizer
Ferramentas de IA
Create a concise extractive summary locally in your browser.
AI Essay Writer
Ferramentas de IA
Generate a structured essay outline and starter draft locally.
AI Rewriter
Ferramentas de IA
Rewrite text in a clearer or more concise local style.
AI Translator
Ferramentas de IA
Translate common phrases locally between English, Spanish, and Portuguese.
Time Calculator
Data e hora
Add or subtract hours, minutes, and seconds.
Hours Calculator
Data e hora
Calculate elapsed hours between start and end times.
Grade Calculator
Ferramentas para estudantes
Calculate a weighted grade from scores and category weights.
Final Grade Calculator
Ferramentas para estudantes
Find the score needed on a final exam to reach a target grade.
Study Planner
Ferramentas para estudantes
Build a simple local study task list with deadlines.
Password Generator
Outras ferramentas
Generate a random password locally with adjustable length.
Random Number Generator
Outras ferramentas
Generate a random integer within a range.
Color Picker
Outras ferramentas
Pick a color and copy its HEX, RGB, and HSL values.