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Free Online Tools

Fast, free tools for everyday tasks — no sign-up required.

Health · Calculators

BMI Calculator

Calculate your Body Mass Index in metric or imperial. Get WHO classification and health guidance.

Date · Calculators

Age Calculator

Calculate your exact age in years, months, and days from any date of birth.

Math · Calculators

Percentage Calculator

Find percentages, increases, decreases, and percentage differences in one click.

Dining · Calculators

Tip Calculator

Split restaurant bills and calculate tip amounts per person — instantly.

Shopping · Calculators

Discount Calculator

Calculate sale prices, savings amounts, and percentage discounts from any price.

Math · Calculators

Average Calculator

Find the average, sum, min, max, and range of any list of numbers.

Math · Calculators

Fraction Calculator

Add, subtract, multiply, divide, and simplify fractions with exact results.

Health · Calculators

Calorie Calculator

Estimate your daily calorie needs using the Mifflin-St Jeor equation.

Date · Calculators

Date Difference Calculator

Calculate the exact number of days, weeks, months, and years between two dates.

Math · Calculators

Ratio Calculator

Simplify ratios and find equivalent ratios or missing ratio values instantly.

Finance · Tax

GST Calculator

Calculate GST-inclusive and GST-exclusive amounts for any Indian tax rate.

Finance · Loans

EMI Calculator

Calculate your monthly EMI, total interest, and repayment schedule for any loan.

Finance · Investment

SIP Calculator

Calculate the future value of your Systematic Investment Plan with expected returns.

Finance · Loans

Loan Calculator

Calculate monthly payments, total interest, and amortisation schedule for any loan.

Finance · Investment

Compound Interest Calculator

Calculate future value of investments with compound interest over any period.

Finance · Employment

Salary Calculator

Break down CTC or gross salary into Basic, HRA, deductions, and take-home pay.

Finance · Investment

FD Calculator

Calculate maturity amount and interest earned on Fixed Deposits at any rate.

Finance · Investment

RD Calculator

Calculate Recurring Deposit maturity amount and returns for any monthly deposit schedule.

Finance · Investment

CAGR Calculator

Calculate Compound Annual Growth Rate, absolute return, and growth multiple for any investment.

Finance · Investment

PPF Calculator

Calculate PPF maturity amount and tax-free interest for yearly or monthly deposits.

Finance · Tax

Income Tax Calculator

Compare income tax under the New and Old Regime for FY 2026-27 and find which saves you more.

Health

Body Fat Calculator

Estimate your body fat percentage using the US Navy and BMI-based methods.

Health

Ideal Weight Calculator

Find your ideal weight range using Devine, Robinson, Miller, and Hamwi formulas.

Health

Water Intake Calculator

Calculate your recommended daily water intake based on weight and activity level.

Health

BMR Calculator

Calculate your Basal Metabolic Rate — the calories your body needs at rest.

Health · Nutrition

Macros Calculator

Calculate your ideal protein, carbohydrate, and fat intake based on your goals.

Units

Unit Converter

Convert between length, weight, area, volume, speed, and temperature.

Design

Color Converter

Convert between HEX, RGB, HSL, and HSV colour formats instantly.

Finance

Currency Converter

Convert between world currencies using indicative exchange rates.

Time

Time Zone Converter

Convert times between any two time zones with daylight saving support.

Units

Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, and Rankine scales.

Generators · Security

Password Generator

Generate strong, random passwords with custom length, symbols, and character sets.

Generators · Design

Lorem Ipsum Generator

Generate placeholder text by paragraphs, words, or sentences for designs.

Generators · Marketing

QR Code Generator

Generate QR codes for URLs, text, Wi-Fi credentials, and vCards.

Developer Tools

JSON Formatter

Format, beautify, and minify JSON instantly with validation and error positions.

Developer Tools

JSON Validator

Validate JSON and pinpoint syntax errors with exact line and column numbers.

Developer Tools

Base64 Encoder / Decoder

Encode and decode Base64 strings with UTF-8, Unicode, and emoji support.

Developer Tools

URL Encoder / Decoder

Percent-encode or decode URLs, query strings, and path segments with full UTF-8 and emoji support.

Developer Tools

Regex Tester

Test regular expressions live with match highlighting, capture groups, and flag support.

Developer Tools

HTML Encoder / Decoder

Encode text to HTML entities or decode them back, with full named, numeric, and hex entity support.

Developer Tools

Hash Generator

Generate MD5, SHA-1, SHA-224, SHA-256, SHA-384, or SHA-512 hashes from any text instantly.

Developer Tools

UUID Generator

Generate version 1 (time-based) or version 4 (random) UUIDs instantly.

Developer Tools

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back, in seconds or milliseconds.

Developer Tools

Cron Expression Parser

Explain a cron expression in plain English and preview its next 10 run times.

Developer Tools

HTTP Status Code Reference

Look up any HTTP status code for its meaning, RFC, typical causes, and common fixes.

Developer Tools

API Header Inspector

Look up any HTTP request or response header for its meaning, RFC, usage, and security notes.

Developer Tools

DNS Record Lookup

Look up any DNS record type for its purpose, RFC, typical usage, and security notes.

Developer Tools · Security

JWT Generator

Generate an unsigned JWT from header and payload JSON for development and testing.

Developer Tools

cURL Command Builder

Build a ready-to-copy curl command from a method, URL, headers, body, and auth.

Developer Tools

OpenAPI Snippet Generator

Convert an endpoint definition into a ready-to-use curl, Fetch, Requests, or HTTPX snippet.

Developer Tools

SQL Formatter & Validator

Beautify SQL indentation, normalize keywords, and catch obvious syntax issues.

Developer Tools

YAML Formatter & Validator

Normalize YAML indentation and catch common mistakes like duplicate keys and mixed tabs.

Developer Tools

XML Formatter & Validator

Normalize XML indentation and catch common mistakes like unclosed or mismatched tags.

Developer Tools

Markdown Preview & Formatter

Convert a limited, safe Markdown subset into normalized formatting and an HTML preview.

Developer Tools · Security

JWT Decoder

Decode JWT header, payload, and claims with expiry status. Decoding only — no signature verification.

SEO · Content

Word Counter

Count words, characters, sentences, paragraphs, and reading time.

SEO

Meta Tag Generator

Generate SEO-optimised title, description, and Open Graph meta tags.

SEO

Slug Generator

Convert titles into clean, SEO-friendly URL slugs — instantly.

SEO · Content

Keyword Density Checker

Analyse keyword frequency and density in your content for on-page SEO.

SEO · Content

Character Counter

Count characters with and without spaces — useful for meta titles and Twitter.

Text Tools

Case Converter

Convert text between UPPER, lower, Title Case, camelCase, snake_case, and more.

Text Tools

Text Reverser

Reverse characters, words, or lines of text — instantly in your browser.

Text Tools

Duplicate Line Remover

Remove duplicate lines from any block of text, keeping unique entries.

Text Tools

Line Sorter

Sort lines of text alphabetically, numerically, or in reverse order.

Free Online Tools

🧮 Calculators

BMI Calculator

Age Calculator

Percentage Calculator

Tip Calculator

Discount Calculator

Average Calculator

Fraction Calculator

Calorie Calculator

Date Difference Calculator

Ratio Calculator

💰 Finance

GST Calculator

EMI Calculator

SIP Calculator

Loan Calculator

Compound Interest Calculator

Salary Calculator

FD Calculator

RD Calculator

CAGR Calculator

PPF Calculator

Income Tax Calculator

🏃 Health

Body Fat Calculator

Ideal Weight Calculator

Water Intake Calculator

BMR Calculator

Macros Calculator

🔄 Converters

Unit Converter

Color Converter

Currency Converter

Time Zone Converter

Temperature Converter

✨ Generators

Password Generator

Lorem Ipsum Generator

QR Code Generator

🛠️ Developer Tools

JSON Formatter

JSON Validator

Base64 Encoder / Decoder

URL Encoder / Decoder

Regex Tester

HTML Encoder / Decoder

Hash Generator

UUID Generator

Unix Timestamp Converter

Cron Expression Parser

HTTP Status Code Reference

API Header Inspector

DNS Record Lookup

JWT Generator

cURL Command Builder

OpenAPI Snippet Generator

SQL Formatter & Validator

YAML Formatter & Validator

XML Formatter & Validator

Markdown Preview & Formatter

JWT Decoder

📈 SEO Tools

Word Counter

Meta Tag Generator

Slug Generator

Keyword Density Checker

Character Counter

📝 Text Tools

Case Converter

Text Reverser

Duplicate Line Remover

Line Sorter