Every Toolkit

500+ High Quality Free Online Tools

Everything you need for development, design, security, and productivity. All tools run in your browser - fast, secure, and private.

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Text

24 tools available

Character Counter

Count characters, words, and sentences

Text Cleaner

Remove extra spaces, newlines, and other characters

Readability Analyzer

Calculate Flesch-Kincaid reading level, grade score, and readability metrics

Case Converter

Convert text case

Text Repeater

Repeat text multiple times with separators

Text Reverser

Reverse text, words, or letters

Palindrome Checker

Check if a word or phrase is a palindrome with animated highlighting

Text to ASCII

Convert text to ASCII

ASCII to Text

Convert ASCII to text

Text to Speech

Convert text to natural-sounding speech

Morse Code Translator

Translate text to Morse code and vice versa

Braille Translator

Convert text to Braille symbols and Braille to text with visual dot patterns

Sort Text Lines

Sort text lines alphabetically, randomly, by length, or reverse order

Table of Contents Creator

Generate table of contents from Markdown or HTML headings with customizable formatting

Word Frequency Counter

Count word frequency

Word Cloud Generator

Generate word clouds

Number Sorter

Sort numbers ascending or descending

Online Notepad

Simple online notepad

String Escape & Unescape

Escape and unescape strings for JavaScript, JSON, HTML, URL, XML, and CSV

Lorem Ipsum Generator

Generate Lorem Ipsum text

ASCII Art Generator

Generate ASCII art from images

Duplicate Word Finder

Find duplicate words in text

Find and Replace

Find and replace text in text

Word Shuffle Generator

Shuffle words or letters randomly for games and puzzles

Converters

34 tools available

Bit/Byte Converter

Convert between bits, bytes, KB, MB, GB, TB, and PB

Hex to RGB Converter

Convert hex color codes to RGB

Step to Calorie Converter

Convert steps to calories burned based on weight and walking pace

MM to Inches Converter

Convert millimeters to inches and between all common length units

KG to LBS Converter

Convert kilograms to pounds and between all common weight units

ML to OZ Converter

Convert milliliters to fluid ounces and between all common volume units

Celsius to Fahrenheit Converter

Convert Celsius to Fahrenheit and between all temperature units

Grams to Cups Converter

Convert grams to cups for cooking and baking ingredients

Kelvin to Celsius Converter

Convert Kelvin to Celsius and Fahrenheit - scientific temperature tool

Grams to Ounces Converter

Convert grams to ounces and between metric and imperial weight units

Grams to Pounds Converter

Convert grams to pounds and between metric and imperial weight units

Ounces to Cups Converter

Convert fluid ounces to cups and between all volume units

Liters to Gallons Converter

Convert liters to gallons (US and UK) and between volume units

Square Feet to Square Meters Converter

Convert square feet to square meters and between all area units

Grams to Tablespoons Converter

Convert grams to tablespoons and other cooking measurements for various ingredients

Base58 Encoder / Decoder

Encode and decode text using Base58 with Bitcoin, Ripple, and Flickr alphabets

Mole to Gram Converter

Convert between moles and grams with support for multiple chemistry units

HTML Cleaner

Clean, format, and minify HTML by removing comments, scripts, styles, and more

YAML Validator

Validate YAML syntax, format YAML code, and view parsed data structure

Grams to Teaspoons Converter

Convert between weight and volume units for cooking ingredients

Audio Frequency Converter

Convert between Hz, kHz, MHz and calculate wavelength and musical notes

Markdown to HTML

Convert Markdown to HTML with live preview

HTML to Markdown

Convert HTML to Markdown format

JSON to CSV

Convert JSON data to CSV format

CSV to JSON Converter

Convert CSV to JSON

YAML to JSON

Convert between YAML and JSON formats

Excel to CSV Converter

Convert Excel files to downloadable CSV directly in the browser using SheetJS

Cooking Measurement Converter

Convert between cups, tablespoons, teaspoons, grams, and ounces

Number to Words Converter

Convert numbers to words in multiple languages and formats

Scientific Notation Converter

Convert between standard and scientific notation formats

CSV to SQL Converter

Convert CSV data into SQL INSERT statements for quick database import

CSV to Excel Converter

Convert CSV files to downloadable Excel (.xlsx) directly in the browser using SheetJS

Shoe Size Converter

Convert shoe sizes between US, UK, EU, Japan, China and foot length measurements

Unit Converter

Convert between different units of measurement

Web Dev

23 tools available

HTML Preview

Live HTML, CSS, and JavaScript editor with preview

Code Highlighter

Syntax highlighting for 20+ programming languages

CSS Flexbox Generator

Visual tool to generate CSS Flexbox layouts

CSS Grid Generator

Visual tool to generate CSS Grid layouts

Box Shadow Generator

Create CSS box shadows visually

Border Radius Generator

Create custom border radius visually

Text Shadow Generator

Create CSS text shadows visually

CSS Clip Path Maker

Create custom CSS clip-path shapes

CSS Gradient Generator

Create beautiful CSS gradients with live preview

Color Picker

Pick and convert colors

Color Contrast Checker

Check color contrast ratio

DNS Lookup Tool

Lookup DNS information

Color Palette Generator

Generate beautiful color palettes and schemes

HTML Table Generator

Create HTML tables with export to CSV, JSON, Markdown

Favicon Generator

Generate favicons for your website

HTML Entity Encoder

Encode HTML entities and special characters

HTML Color Names

Complete chart of HTML color names with hex and RGB

Tint & Shade Generator

Generate lighter tints and darker shades from any color for your palette

CSS Transform Previewer

Visualize translate, rotate, scale, skew transforms in 3D

CSS Cursor Previewer

Browse and preview different CSS cursor styles with live demo and CSS code

HTML to JSX Converter

Convert HTML markup to JSX syntax for React applications instantly

CSS Gradient Border Generator

Create gradient-colored borders with width, direction, and radius controls

Responsive Design Tester

Preview your website on multiple screen sizes and devices

Finance

34 tools available

Income Tax Calculator (India)

Calculate Indian income tax with new and old regime comparison

Home Loan EMI Calculator

Calculate home loan EMI with amortization schedule and interest breakdown

Quick Ratio Calculator

Calculate quick ratio (acid test ratio) for liquidity analysis

EVM Calculator

Calculate Earned Value Management metrics for project performance tracking

APR Calculator

Calculate APR, APY, and effective interest rates for loans and savings

CD Calculator

Calculate Certificate of Deposit returns with compound interest and APY

Markup Calculator

Calculate markup, margin, selling price, and profit for pricing decisions

Margin Calculator

Calculate profit margin, markup, and optimal pricing

EBITDA Calculator

Calculate EBITDA, EBIT, and EBITDA margin with detailed breakdown

Loss Ratio Calculator

Calculate insurance loss ratio and combined ratio with profitability analysis

Income Tax Calculator (USA)

Calculate federal income tax and take-home pay for 2024

Inflation Calculator

Adjust value of money for inflation over years

Cryptocurrency Profit Calculator

Calculate profit or loss from buying and selling cryptocurrencies

P/E Ratio Calculator

Calculate Price-to-Earnings ratio from stock price and EPS

Simple Interest Calculator

Calculate simple interest and total amount for principal + time + rate

Compound Interest Calculator

Calculate compound interest, future value, and total returns

Revenue Forecaster

Forecast business revenue with growth projections and charts

Gratuity Calculator

Calculate employee gratuity based on salary and service years

Currency Symbols

Complete list of currency symbols and codes for all countries

Expense Splitter

Split group expenses and generate individual share reports

Depreciation Calculator

Calculate asset depreciation using straight-line and declining balance methods

PF Calculator

Compute monthly employee + employer PF contributions and interest

SIP Calculator

Compute SIP maturity amount, expected returns, and yearly growth

Hourly Rate Calculator

Determine hourly rate based on target income, working days, and expenses

Break-Even Calculator

Calculate break-even point and profit targets for your business

ROI Calculator

Calculate return on investment and evaluate investment performance

Loan EMI Calculator

Calculate monthly loan payments and total interest

Mortgage Calculator

Calculate monthly mortgage payments with amortization schedule

Discount Calculator

Calculate sale prices and savings

GST Calculator

Calculate GST, CGST, SGST, IGST for India

NPV Calculator

Calculate Net Present Value, IRR, and investment metrics

Put-Call Parity Calculator

Calculate options pricing and identify arbitrage opportunities

CAGR Calculator

Calculate Compound Annual Growth Rate for investments and growth

Bond Yield Calculator

Calculate Current Yield, YTM, YTC, and bond duration metrics

Math

54 tools available

Prime Number Generator

Generate prime numbers in any range using efficient algorithms

Factorial Calculator

Calculate factorials, permutations, and combinations with steps

Perfect Square Calculator

Check if a number is a perfect square and find square roots

Perfect Cube Calculator

Check if a number is a perfect cube and find cube roots

Cube Root Calculator

Calculate cube roots with simplification and step-by-step solutions

RMS Calculator

Calculate Root Mean Square for datasets, AC voltage and current

Acceleration Calculator

Calculate acceleration using velocity, force, distance, or gravity

Dew Point Calculator

Calculate dew point, heat index, humidex, and comfort levels

Earthquake Calculator

Calculate earthquake magnitude, energy, intensity, and compare seismic events

Angular Acceleration Calculator

Calculate angular acceleration from velocity, torque, RPM, or linear acceleration

Coulomb's Law Calculator

Calculate electrostatic force, charge, distance, and electric field

Dot Product Calculator

Calculate dot product, angle, and projection for 2D and 3D vectors

Vector Calculator

Complete vector operations calculator with 2D and 3D visualizations

Gauss's Law Calculator

Calculate electric flux, field, and charge using Gauss's Law

Boolean Algebra Simplifier

Simplify boolean expressions with step-by-step solutions and truth tables

Long Division Calculator

Calculate long division with step-by-step solutions and explanations

Modulo Calculator

Calculate modulo operations with step-by-step solutions and remainder

Eigenvalue & Eigenvector Calculator

Calculate eigenvalues and eigenvectors for 2x2 and 3x3 matrices

Binomial Coefficient Calculator

Calculate binomial coefficients (combinations) with Pascal's triangle visualization

Divisibility Test Calculator

Test divisibility by 2-12 with detailed rules and prime factorization

Pascal's Triangle Calculator

Generate Pascal's Triangle with interactive visualization and properties

Magic Square Calculator

Generate magic squares with automatic verification and sum calculations

Unit Circle Visualizer

Interactive unit circle with trigonometric values and angle controls

Harmonic Number Calculator

Calculate harmonic numbers with step-by-step breakdown and approximations

Cubic Equation Calculator

Solve cubic equations axΒ³ + bxΒ² + cx + d = 0 with Cardano's formula

Centroid Calculator

Calculate centroid coordinates for various geometric shapes including rectangles, triangles, circles, and more

Distance Between Two Points

Calculate distance between two points in 2D or 3D space

Law of Sines Calculator

Solve triangles using the Law of Sines with step-by-step solutions

Law of Cosines Calculator

Solve triangles using the Law of Cosines for SAS and SSS cases

Trapezium Area Calculator

Calculate the area and perimeter of a trapezium (trapezoid)

Truth Table Generator

Generate truth tables for boolean logic expressions

Percentage Calculator

Calculate percentages, increases, and decreases

Factor Calculator

Find all factors and prime factorization of any number

Linear Regression Calculator

Calculate regression line, correlation, R-squared, and predictions

Matrix Calculator

Perform matrix operations: addition, subtraction, multiplication, determinant, inverse, transpose

Logarithm Calculator

Calculate logarithms, natural log, antilog, and exponents with any base

Trigonometric Functions Calculator

Calculate sin, cos, tan, csc, sec, cot and inverse trigonometric functions in degrees or radians

Slope Calculator

Calculate slope, angle, distance, and midpoint between two points

Number Sequence Calculator

Calculate arithmetic progression, geometric progression, Fibonacci, and other number sequences

Surface Area Calculator

Calculate surface area of 3D shapes: cube, sphere, cylinder, cone, pyramid, and more

Fraction Calculator

Add, subtract, multiply, divide fractions. Simplify fractions and convert between fractions and decimals

Probability Calculator

Calculate probability, odds, and chances for events

Bayes' Theorem Calculator

Calculate posterior probability using Bayes' Theorem

Mean Median Mode Calculator

Calculate mean, median, mode, and range

Permutation & Combination Calculator

Calculate permutations and combinations (nPr, nCr)

Roman Numeral Converter

Convert between Arabic numbers and Roman numerals

Angle Converter

Convert between degrees, radians, gradians, turns, and more with visual representation

Scientific Calculator

Advanced calculator with trigonometry, logarithms, and calculation history

Circle & Sphere Calculator

Calculate area, circumference, diameter, and volume from radius or diameter

Quadratic Equation Solver

Solve axΒ² + bx + c = 0 and display both real and complex roots

Pythagorean Theorem Calculator

Find the missing side (a, b, or c) in a right-angled triangle

Square Root Calculator

Calculate square roots, cube roots, and squares

GCD & LCM Calculator

Calculate Greatest Common Divisor and Least Common Multiple

Triangle Calculator

Calculate triangle area, perimeter, angles from sides

Health & Fitness

26 tools available

Waist-to-Hip Ratio Calculator

Calculate WHR to assess body fat distribution and health risks

Heart Rate Zone Calculator

Calculate heart rate training zones for optimal fitness and performance

Sleep Debt Calculator

Calculate your sleep debt and get personalized recovery plans with weekly tracking

Pregnancy BMI Calculator

Calculate pregnancy BMI and track recommended weight gain with trimester guidance

BMI Calculator for Kids

Calculate BMI percentile for children and teens aged 2-20 with health recommendations

Total Body Water Calculator

Calculate total body water, ICW/ECW distribution, and daily hydration needs

BMI Calculator for Women

Calculate BMI, ideal weight, and body fat percentage for women

TDEE Calculator

Calculate Total Daily Energy Expenditure, BMR, and macronutrient needs for your fitness goals

Arterial Age Calculator

Calculate your arterial age based on cardiovascular risk factors and get personalized health recommendations

BMR Calculator

Calculate Basal Metabolic Rate and daily calorie needs

AHI Calculator

Calculate Apnea-Hypopnea Index for sleep apnea severity assessment

Blood Pressure Calculator

Calculate BP category, MAP, pulse pressure and cardiovascular risk

Lung Capacity Calculator

Calculate TLC, FVC, FEV1 and respiratory volumes

Weight Loss Calculator

Calculate calorie deficit and timeline to reach your target weight

Eye Power Calculator

Analyze vision prescription and get lens recommendations

BMI Calculator

Calculate Body Mass Index and check healthy weight

Body Fat Percentage Calculator

Calculate body fat using Navy, Army, or BMI-based methods

Carbohydrate Calculator

Calculate daily carbohydrate intake based on activity level, goals, and body metrics

Water Intake Calculator

Calculate recommended daily water intake based on weight, age, and activity

Fiber Intake Calculator

Track your daily fiber consumption and meet your nutritional goals

Cholesterol Ratio Calculator

Calculate and track your cholesterol levels for better heart health

Blood Sugar Converter

Convert and track blood glucose levels between mg/dL and mmol/L

Sunscreen Calculator

Calculate protection time and sunscreen needs based on your skin type and UV conditions

Vitamin Calculator

Track your daily vitamin intake and meet your nutritional goals

Protein Intake Calculator

Determine daily protein needs based on body weight, fitness goal, and activity level

Calorie Calculator

Calculate daily calorie needs for weight goals

Physics

41 tools available

Watts to Amps Calculator

Calculate watts to amps, amps to watts for DC and AC circuits

Torque Calculator

Calculate torque using force, power, angular acceleration, or moment of inertia

Series Resistor Calculator

Calculate total resistance, current, voltage drops, and power for series circuits

Parallel Resistor Calculator

Calculate total resistance, current, branch currents, and power for parallel circuits

Centrifugal Force Calculator

Calculate centrifugal force with acceleration and angular velocity calculations

Angular Frequency Calculator

Calculate angular frequency, frequency, period, and RPM with conversions

Angular Momentum Calculator

Calculate angular momentum for point mass, rigid body, and orbital systems

RLC Calculator

Calculate resonance, impedance, and reactance for RLC circuits

Stress Calculator

Calculate mechanical stress (tensile, compressive, shear) with safety analysis

Time Dilation Calculator

Calculate relativistic time dilation from velocity and gravity

Angular Displacement Calculator

Calculate angular displacement with velocity and acceleration

Torque to HP Calculator

Convert between torque, horsepower, and RPM for engines and motors

Gear Ratio Calculator

Calculate gear ratios, speed, and mechanical advantage for gear systems

SNR Calculator

Calculate signal-to-noise ratio from power, voltage, or dB values

kg to Newtons Calculator

Convert between mass (kg) and weight (Newtons) with different gravity values

Potential Energy Calculator

Calculate gravitational and elastic potential energy

Momentum Calculator

Calculate linear momentum with step-by-step solutions

Thermal Expansion Calculator

Calculate linear and volumetric thermal expansion

Refractive Index Calculator

Calculate refraction angles using Snell's law and critical angles

Mirror Equation Calculator

Calculate image distance, focal length, and magnification for mirrors

Gravitational Force Calculator

Calculate gravitational force between two masses using Newton's law

Centripetal Force Calculator

Calculate centripetal force and circular motion parameters

Buoyancy Calculator

Calculate buoyant force and determine if objects float or sink

Pendulum Period Calculator

Calculate pendulum period and frequency for simple harmonic motion

Friction Calculator

Calculate friction force and coefficient for different surfaces

Free Fall Calculator

Calculate free fall time, height, and velocity with gravity

Hooke's Law Calculator

Calculate spring force, constant, and displacement using Hooke's Law

Inclined Plane Calculator

Calculate forces, acceleration, and mechanical advantage on inclined planes

Reynolds Number Calculator

Calculate Reynolds number for fluid flow analysis

Ideal Gas Law Calculator

Calculate pressure, volume, temperature, or moles using PV=nRT

Ohm's Law Calculator

Calculate voltage, current, or resistance (V = IR)

Density Calculator

Calculate density, mass, or volume using the formula ρ = m/V

Force Calculator

Compute force using F = m Γ— a

Heat Transfer Calculator

Calculate heat transfer using Q = mcΞ”T formula

Wave Speed Calculator

Calculate wave speed, frequency, or wavelength using v = fΞ»

Kinetic Energy Calculator

Calculate kinetic energy using KE = Β½mvΒ²

Projectile Motion Calculator

Calculate trajectory, range, height, and time of flight

Work and Energy Calculator

Calculate work, power, and energy from force, displacement, and time

Pressure Converter

Convert between Pascal, Bar, PSI, Atmosphere, and Torr

Frequency to Wavelength Converter

Convert frequency to wavelength and vice versa using the speed of light

Speed Calculator

Calculate speed, distance, or time

Fun & Games

32 tools available

Pig Latin Translator

Convert English to Pig Latin and back - fun word play language game

Bingo Card Generator

Generate random bingo cards for games and events with customizable options

Metronome

Online metronome with adjustable tempo, time signatures, and subdivisions

Minesweeper

Classic Minesweeper game with three difficulty levels

Color Sequence Memory Game

Test your memory with the classic Simon Says color sequence game

Tower of Hanoi

Solve the classic Tower of Hanoi puzzle with interactive visualization

Stopwatch Accuracy Challenge

Test your timing skills by stopping at exactly 10 seconds

Sliding Number Puzzle

Play the classic 15-puzzle game with 3x3, 4x4, and 5x5 grids

Tetris Game

Play classic Tetris with modern controls and beautiful UI

Spelling Quiz Generator

Generate interactive spelling quizzes with audio pronunciation

Tic Tac Toe

Play Tic Tac Toe online with 2-player mode or against AI

Hangman Game

Play the classic Hangman word guessing game online

FLAMES Calculator

Fun relationship calculator - Friends, Love, Affection, Marriage, Enemy, Siblings

Sudoku Generator

Generate and solve Sudoku puzzles with multiple difficulty levels and helpful features

Random Animal Viewer

Fetch random cat or dog photos from public APIs and enjoy adorable animals

Random Joke Generator

Show a random joke from a curated collection with next joke and share buttons

Typing Speed Test

Type a random paragraph and measure your speed (WPM) and accuracy

Memory Match Game

Flip cards to find matching pairs with a timer and score tracking

Reaction Time Test

Measure how fast you react when the screen changes color

Maze Generator & Solver

Random maze generation with player movement or auto-solve button

Bouncing Balls Physics

Elastic collisions, gravity, friction sliders - add 100+ balls and watch the chaos

3D Cube Rotator

Interactive 3D cube that rotates with drag and zoom using Three.js

Bubble Popper Game

Bubbles float across the screen β€” click to pop and earn points

HTML Canvas Painter

Simple paint app with brush sizes, colors, undo, and export as PNG

Online Piano

Play an interactive piano keyboard with mouse or keys; supports sustain, octaves, and recording

Color Mixer

Mix Red, Green, and Blue sliders to get new colors and copy HEX instantly

Random Flag Generator

Randomly generate flag designs using colors, stripes, and shapes

Cloth Simulation

Real-time cloth simulation with draggable corners; tweak gravity and wind

Random User Generator

Generate fake names, emails, and profile data for testing

2048 Game

Join the numbers and get to the 2048 tile!

Snake Game

Classic snake game - eat food, grow longer, and avoid collisions

Spinner Wheel

Random picker and decision maker with customizable options

Privacy First

All tools run locally in your browser. Your data never leaves your device.

Lightning Fast

No server processing means instant results. Everything runs client-side.

Always Free

No subscriptions, no hidden fees. All tools are completely free forever.