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