🛠️
AMTools by HelloMarketing.in
  100+ Tools  •  Always Free  •  No Signup

Your All-in-One
Online Toolkit

Calculators, converters, text tools, health utilities and more — built for users worldwide. Fast, accurate, mobile-friendly and 100% free forever.

100+
Free Tools
10+
Categories
30+
Currencies
0
Sign-ups Needed
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Choose Your Tool

All tools are free to use, no account required. Works on all devices worldwide.

Popular
🏦
Finance

EMI Calculator

Calculate monthly loan installments for home, car or personal loans with amortization schedule.

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Hot
📈
Finance

SIP Calculator

Estimate future value of your Systematic Investment Plan in mutual funds with CAGR projections.

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💹
Finance

Compound Interest

See how money grows with compound interest. Supports daily, monthly, quarterly, yearly compounding.

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🧮
Finance

Simple Interest

Calculate simple interest on any principal amount for any duration. Multi-currency support.

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Popular
🧾
Finance

GST / VAT Calculator

Add or remove GST/VAT from any amount. Supports all GST slabs — 5%, 12%, 18%, 28%.

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💰
Finance

Income Tax Calculator

Estimate Indian income tax for FY 2025-26 under both old and new tax regimes instantly.

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Finance

FD Calculator

Calculate maturity value and interest earned on fixed deposits with quarterly/monthly compounding.

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Finance

RD Calculator

Find maturity value of your recurring deposit with monthly contributions and compounding.

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Finance

PPF Calculator

Estimate PPF maturity value with annual contributions over 15 years at current interest rates.

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Finance

Salary / CTC Calculator

Break down your CTC into take-home salary, PF, HRA, and tax deductions with full details.

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🌅
Finance

Retirement Calculator

Calculate how much corpus you need to retire comfortably based on current expenses and inflation.

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Finance

Loan Affordability

Find out how much loan you can afford based on income, existing obligations and lending norms.

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Finance

Mortgage Calculator

Calculate total monthly home loan payment including principal, interest, taxes and insurance.

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Finance

Discount Calculator

Find final price after any percentage discount. Also calculate what % off something is.

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🍽️
Finance

Tip Calculator

Calculate tip amount and split bill among friends. Multi-currency, custom tip percentages.

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Live
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Finance

Currency Converter

Convert between 30+ world currencies with live exchange rates. USD, EUR, GBP, INR, AUD and more.

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Finance

Fuel Cost Calculator

Calculate fuel cost for any trip. Supports litres/gallons, km/miles and multiple fuel types.

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Finance

ROI Calculator

Calculate Return on Investment percentage for any business or personal investment easily.

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Finance

Break-Even Calculator

Find how many units you need to sell to break even. Essential for business planning.

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Finance

Profit Margin Calculator

Calculate gross profit margin, net margin and markup percentage for products or services.

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Finance

Inflation Calculator

See what your money is worth today vs any past year, adjusted for inflation rates.

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🎁
Finance

Gratuity Calculator

Calculate gratuity payout based on years of service and last drawn salary as per Indian law.

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Finance

HRA Calculator

Calculate HRA exemption under Section 10(13A) for metro and non-metro cities.

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Popular
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Health

BMI Calculator

Calculate Body Mass Index with metric (kg/cm) or imperial (lb/ft) units. Get instant health category.

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Health

Calorie Calculator

Calculate daily calorie needs based on age, height, weight, gender and activity level (TDEE).

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Health

BMR Calculator

Find your Basal Metabolic Rate — calories burned at rest. Essential for weight management goals.

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Health

Ideal Weight Calculator

Find your ideal body weight range based on height, gender using multiple scientific formulas.

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Health

Body Fat Calculator

Estimate body fat percentage using neck, waist and hip measurements with the US Navy method.

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Health

Water Intake Calculator

Calculate how much water you should drink daily based on weight, climate and activity level.

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Health

Pregnancy Due Date

Calculate expected delivery date from last menstrual period (LMP) or conception date.

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Health

Ovulation Calculator

Find your fertile window and most likely ovulation day based on your menstrual cycle length.

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😴
Health

Sleep Calculator

Find the best bedtime or wake-up time based on 90-minute sleep cycles for quality rest.

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Popular
🔡
Text

Word Counter

Count words, characters, sentences, paragraphs and estimate reading time. Instant real-time results.

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🔤
Text

Character Counter

Count characters with/without spaces. Perfect for Twitter, SMS, Instagram captions and SEO metas.

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Text

Text Case Converter

Convert text to UPPER CASE, lower case, Title Case, Sentence case, camelCase or snake_case.

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Text

Duplicate Line Remover

Remove duplicate lines from any text list instantly. Sort, trim and deduplicate in one click.

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Text

Lorem Ipsum Generator

Generate lorem ipsum placeholder text. Choose number of paragraphs, words or sentences.

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↔️
Text

Text Reverser

Reverse any text, string or individual words instantly. Also reverses each line separately.

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Text & SEO

URL Encoder / Decoder

Encode or decode any URL or query string. Essential for web developers and SEO professionals.

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Text

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings back to plain text. Works instantly in-browser.

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New
{ }
Text & Dev

JSON Formatter

Beautify, minify and validate JSON instantly. Highlights syntax errors and formats nested objects.

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Text & Dev

HTML Encoder / Decoder

Encode special HTML characters to entities or decode entities back to plain text.

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📖
SEO

Readability Checker

Analyse text readability using Flesch-Kincaid score, grade level and reading ease index.

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🔑
SEO

Slug / Permalink Generator

Convert any title or phrase to an SEO-friendly URL slug. Remove special characters, add hyphens.

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Popular
%
Math

Percentage Calculator

What is X% of Y? What % is X of Y? Percentage increase/decrease — all 3 types solved.

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🔬
Math

Scientific Calculator

Full-featured scientific calculator with sin, cos, tan, log, sqrt, powers and more functions.

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Math

Fraction Calculator

Add, subtract, multiply, divide fractions and mixed numbers. Get simplified results with steps.

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🔢
Math

Prime Number Checker

Check if any number is prime and find prime factors. Generate prime numbers in a range.

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Math

GCD / LCM Calculator

Find the Greatest Common Divisor and Least Common Multiple of multiple numbers.

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Math

Average Calculator

Calculate mean, median, mode and range of any list of numbers instantly.

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^2
Math

Exponent Calculator

Calculate any base raised to any power. Includes square root, cube root and nth roots.

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⚗️
Math

Ratio Calculator

Simplify, scale and compare ratios. Perfect for cooking recipes, scale models and maps.

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Popular
📐
Converter

Unit Converter

Convert length, weight, volume, area, speed and temperature across all metric and imperial units.

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🌡️
Converter

Temperature Converter

Instantly convert between Celsius, Fahrenheit and Kelvin with formula explanation.

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📏
Converter

Length Converter

Convert meters, feet, inches, cm, km, miles, yards, nautical miles and more.

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⚖️
Converter

Weight Converter

Convert kilograms, pounds, grams, ounces, stones and metric/imperial tons.

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🚀
Converter

Speed Converter

Convert km/h, mph, m/s, knots and Mach number. Great for travel and physics.

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Converter

Data Storage Converter

Convert Bytes, KB, MB, GB, TB and Petabytes instantly. Both decimal (SI) and binary units.

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🔢
Converter

Number System Converter

Convert between binary, decimal, hexadecimal and octal number systems with step-by-step.

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⚡
Converter

Energy Converter

Convert Joules, Calories, kWh, BTU, Watt-hours and Electron volts.

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🗺️
Converter

Area Converter

Convert sq meters, sq feet, acres, hectares, sq km, sq miles, bigha, marla and guntha.

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Popular
🎂
Date & Time

Age Calculator

Calculate exact age in years, months and days from date of birth. Find days until next birthday.

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📅
Date & Time

Days Between Dates

Find exact number of days, weeks and months between any two dates. Includes business days option.

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⏳
Date & Time

Countdown Timer

Create a countdown to any future event — wedding, exam, vacation, launch. Save and share.

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🌍
Date & Time

Time Zone Converter

Convert time between 100+ world time zones. Find overlapping hours for global team meetings.

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⌚
Date & Time

Unix Timestamp Converter

Convert Unix epoch timestamps to human-readable dates and vice versa. Live current timestamp.

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📆
Date & Time

Working Days Calculator

Calculate working/business days between two dates excluding weekends and public holidays.

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⏱️
Date & Time

Time Duration Calculator

Add or subtract time durations. Find total hours worked from start/end times for timesheet.

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Popular
🔐
Security

Password Generator

Generate strong, random passwords with custom length, symbols, numbers. Strength indicator included.

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🛡️
Security

Password Strength Checker

Check how strong your password is with detailed score, time to crack estimate and improvement tips.

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🔏
Security

Hash Generator

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text. Works entirely in your browser.

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🆔
Security

UUID Generator

Generate cryptographically secure UUID v4 identifiers. Bulk generate up to 100 UUIDs at once.

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Hot
📱
Utility

QR Code Generator

Generate QR codes for URLs, text, email, phone or Wi-Fi. Download as PNG instantly.

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🎨
Color

Color Picker

Visual color picker with HEX, RGB, HSL and CMYK values. Copy any format with one click.

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🖌️
Color

Color Converter

Convert HEX to RGB, RGB to HSL, CMYK to HEX and all color format conversions in seconds.

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🌈
Color

Color Palette Generator

Generate beautiful color palettes — complementary, triadic, analogous, monochromatic schemes.

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👁️
Color

Contrast Checker

Check WCAG color contrast ratio for accessibility compliance. Pass/fail for AA and AAA levels.

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🌅
Color

CSS Gradient Generator

Create linear and radial CSS gradients visually. Get the CSS code to copy into your project.

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🎲
Random

Random Number Generator

Generate random numbers in any range. Single number, list, or unique set. Cryptographically secure.

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🪙
Random

Coin Flip Simulator

Flip a virtual coin — heads or tails. Flip multiple coins at once and see probability stats.

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🎯
Random

Dice Roller

Roll any number of dice — D4, D6, D8, D10, D12, D20. Perfect for board games and RPGs.

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🎡
Random

Name Picker Wheel

Add names, spin the wheel and pick a random winner. Great for giveaways, team selections.

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📜
Random

Random Word Generator

Generate random English words by category — nouns, verbs, adjectives. Great for games and writing.

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🤔
Random

Yes or No Generator

Can't decide? Get a random Yes or No answer. Like a magic 8-ball for your tough decisions.

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🇪🇺
Finance

VAT Calculator

Calculate VAT for UK (20%), EU countries, Australia (GST 10%) and global VAT/sales tax rates.

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📋
Finance

Invoice Generator

Create professional invoices online. Add items, taxes, logo and download as PDF instantly.

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📐
Math

Quadratic Equation Solver

Solve ax² + bx + c = 0. Find both roots, discriminant and vertex. Shows full working.

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📐
Math

Geometry Calculator

Calculate area, perimeter and volume of circles, rectangles, triangles, spheres and more.

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📊
Dev Tools

CSV to JSON Converter

Convert CSV data to JSON format instantly. Paste CSV and get clean, formatted JSON output.

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🔍
Text

Text Diff Checker

Compare two texts side by side and highlight differences. Great for proofreading and code review.

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🥩
Health

Macro Calculator

Calculate daily protein, carbohydrate and fat intake for your diet goal — lose, maintain or gain.

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🏃
Health

Running Pace Calculator

Calculate running pace, finish time or distance. Supports km and miles for any race distance.

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🌀
Converter

Pressure Converter

Convert between Pascal, Bar, PSI, ATM, Torr and mmHg for science and engineering.

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🧪
Converter

Volume Converter

Convert litres, gallons (US/UK), ml, cups, pints, quarts and fl oz — cooking or science.

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⚽
Random

Team Name Generator

Generate cool, creative team names for sports, quizzes, gaming and corporate events.

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🎯
Finance

Savings Goal Calculator

Find out how long it takes to reach a savings goal or how much to save monthly to hit a target.

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100+
Free Tools Available
30+
World Currencies Supported
10
Tool Categories
0
Sign-ups or Fees
Why AMTools?

Built for Real People, Worldwide

Every tool is designed with simplicity, speed and global usability in mind.

🌍

Works Globally

Support for 30+ currencies, metric & imperial units, and multiple country-specific formats. Use it from anywhere.

⚡

Lightning Fast

All calculations happen instantly in your browser. No server round trips, no loading spinners.

🔒

100% Private

Your data never leaves your browser. We don't log inputs, store results or track what you calculate.

📱

Mobile Friendly

Every tool is fully responsive. Works perfectly on phones, tablets and desktops without zooming.

🎯

Ad-Respectful Design

Tools come first, ads come second. We never block or interrupt your workflow with intrusive popups.

♾️

Always Free

Every single tool on AMTools is free to use forever. No premium plan, no credits, no paywalls.

What is AMTools?

AMTools (amtools.in) is a free online tool collection built and maintained by HelloMarketing.in — a digital marketing agency based in India. Our goal is to provide the world's most useful, accurate and beautifully designed online tools — for free, forever.

Our Tool Categories

AMTools covers 10 major categories: Finance (EMI, SIP, tax, loans), Health (BMI, calories, pregnancy), Text & SEO (word counter, case converter, lorem ipsum), Math (percentage, fractions, geometry), Converters (units, currency, data storage), Date & Time (age, countdown, timezone), Security (password generator, hash tools), Color (picker, palette, contrast), Random (dice, coin, wheel) and Developer Utilities (JSON, Base64, URL encoder).

Multi-Currency & Global Units Support

All financial tools on AMTools support 30+ world currencies including USD, EUR, GBP, INR, AUD, CAD, AED and more. Unit converters support both metric and imperial systems. The default is set globally (USD for finance, kg/km for measurements) but you can switch to any currency or unit in a single click — no reload needed.

Privacy First

Every calculation on AMTools happens entirely in your browser using JavaScript. We do not send your data to any server, we do not log inputs, and we do not store results. Your financial figures, health data and personal information never leave your device. Read our Privacy Policy for full details.