The Master Directory

All Professional
Utilities

Browse our complete suite of 202+ tools, organized by category for maximum efficiency.

Finance Tools

Professional financial calculators.

31 Powerful Tools Available

Finance

US Paycheck Calculator

Estimate your take-home pay after federal income tax, Social Security, Medicare, state tax and 401(k) contributions for 2026.

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Finance

UK Take-Home Pay Calculator

Work out your UK salary after Income Tax, National Insurance, pension and student loan repayments for 2026/27.

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Finance

Mortgage Calculator

Estimate monthly mortgage payments including principal, interest, taxes, and insurance.

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Finance

House Affordability Calculator

Find out how much house you can afford from your income, debts, down payment and mortgage rate using the 28/36 rule.

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Finance

Amortization Schedule Calculator

Build a full loan amortization schedule with principal, interest and balance for every payment, including extra payments.

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Finance

Mortgage Refinance Calculator

See your new payment after refinancing, how long it takes to recover closing costs, and lifetime interest saved.

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Finance

Rent vs Buy Calculator

Compare the long-term cost of buying a home against renting and investing the difference.

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Finance

Retirement Calculator

Project your 401(k), IRA or pension balance at retirement and the yearly income it could safely provide.

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Finance

Auto Loan Calculator

Estimate your monthly car payment including sales tax, dealer fees, down payment and trade-in value.

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Finance

Debt Payoff Calculator

Compare the debt snowball and debt avalanche methods to see which clears your balances sooner and cheaper.

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Finance

Australia Take-Home Pay Calculator

Work out your Australian pay after income tax, the Medicare levy and salary sacrifice using 2026–27 ATO rates.

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Finance

UK Stamp Duty Calculator

Calculate Stamp Duty Land Tax on residential property in England and Northern Ireland, including first-time buyer relief.

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Finance

Sales Tax Calculator

Add US sales tax to a price or work backwards from a receipt total to the pre-tax amount.

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Finance

VAT Calculator

Add VAT to a net price or remove VAT from a gross price using UK, EU, Australian and New Zealand rates.

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Finance

Loan Calculator

Advanced loan calculator with extra payment analysis and interest savings.

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Finance

Compound Interest

Calculate compound interest with multiple compounding frequencies and regular contributions.

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Finance

Savings Calculator

Project your savings growth over time with monthly contributions and interest.

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Finance

Salary to Hourly

Convert between annual salary and hourly rate with daily, weekly, and monthly breakdowns.

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Finance

Credit Card Interest

Calculate how long to pay off credit card debt and total interest charged.

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Finance

Investment Return

Calculate total return, CAGR, and investment multiples over any time period.

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Finance

Inflation Calculator

See how inflation erodes purchasing power and what money will be worth in the future.

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Finance

Currency Converter

Check real-time exchange rates and convert currencies.

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Finance

EMI Calculator

Calculate your Equated Monthly Installments for loans with ease.

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Finance

GST Calculator

Calculate Goods and Services Tax for your business transactions.

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Finance

SIP Calculator

Estimate your wealth growth via mutual fund SIPs based on expected returns.

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Finance

Break-Even Calculator

Find how many units you need to sell to cover fixed and variable costs.

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Finance

Interest Calculator

Calculate both Simple and Compound interest on your savings or loans.

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Finance

Loan Eligibility

Check how much home or personal loan you qualify for based on your income.

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Finance

Percentage Calculator

Solve various percentage-based math problems quickly.

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Finance

Profit Margin Calculator

Calculate gross profit, profit margin and markup percentage from cost and selling price.

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Finance

ROI Calculator

Measure return on investment and annualized ROI to compare investments and projects.

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SEO Tools

Search growth and content optimization tools.

8 Powerful Tools Available

SEO

Meta Tag Generator

Create SEO-friendly meta tags for your website to improve search ranking.

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SEO

Sitemap Generator

Generate XML sitemaps for search engines to crawl your site.

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SEO

Robots.txt Generator

Guide search engine bots on how to crawl your site.

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SEO

Keyword Density

Analyze your content's keyword frequency and density to avoid stuffing.

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SEO

Slug Generator

Create SEO-friendly URL slugs for your blog posts and pages.

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SEO

HTML Minifier

Compress your HTML code to improve page load speed and performance.

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SEO

URL Encoder/Decoder

Safely encode or decode URLs to ensure proper web formatting.

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SEO

Word Counter

Count words, characters, and sentences in your text instantly.

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Documents Tools

High-demand PDF and office document converters.

14 Powerful Tools Available

Documents

PDF to Word

Convert PDF files into editable DOCX documents in your browser.

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Documents

Word to PDF

Turn DOCX files into clean PDF documents with local processing.

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Documents

PDF to Excel

Extract PDF table content into spreadsheet-friendly Excel files.

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Documents

PDF to PPT

Convert PDF pages into presentation-ready slide exports.

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Documents

PDF to JPG

Render PDF pages as downloadable JPG image files.

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Documents

JPG to PDF

Combine one or more JPG images into a single PDF document.

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Documents

PDF to Text

Extract readable text from PDF files for copy, export, or reuse.

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Documents

PDF to HTML

Convert PDF content into basic HTML markup for reuse on the web.

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Documents

Excel to PDF

Export spreadsheet sheets into neat PDF documents instantly.

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Documents

PPT to PDF

Convert PowerPoint presentations into shareable PDF files.

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Documents

PDF Merge

Combine multiple PDF files into a single document without leaving your browser.

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Documents

PDF Split

Split a PDF by page range and download the extracted section.

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Documents

PDF Compress

Reduce PDF file size with browser-side optimization.

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Documents

PDF Rotate

Rotate every page in a PDF and download the corrected file.

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Images Tools

Image format converters and visual file utilities.

13 Powerful Tools Available

Images

JPG to PNG

Convert JPG images into lossless PNG files in seconds.

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Images

PNG to JPG

Convert transparent or flat PNG images into JPG exports.

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Images

WebP to PNG

Turn WebP files into widely supported PNG images.

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Images

PNG to WebP

Convert PNG images into compressed WebP files for the web.

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Images

JPG to WebP

Convert JPG photos into modern WebP images with browser-side processing.

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Images

HEIC to JPG

Convert HEIC and HEIF photos into standard JPG files.

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Images

BMP to PNG

Turn BMP images into smaller, web-friendly PNG files.

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Images

GIF to JPG

Extract a GIF frame into a JPG image you can download.

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Images

SVG to PNG

Rasterize SVG artwork into PNG images while keeping local control.

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Images

PNG to SVG

Generate a lightweight SVG wrapper from PNG artwork for quick reuse.

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Images

Image to Base64

Turn image files into Base64 strings for embeds, APIs, and quick previews.

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Images

Base64 to Image

Decode Base64 image strings back into downloadable image files instantly.

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Images

Image to PDF

Package multiple image files into a single PDF export.

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Data Tools

Structured data converters for modern developer workflows.

9 Powerful Tools Available

Data

JSON to CSV

Transform JSON arrays into CSV rows for spreadsheets and exports.

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Data

CSV to JSON

Convert CSV tables into structured JSON arrays directly in the browser.

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Data

JSON to XML

Convert JSON objects into XML markup for integrations and exports.

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Data

JSON to YAML

Transform JSON data into YAML for config files and dev workflows.

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Data

YAML to JSON

Convert YAML input into structured JSON with validation feedback.

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Data

CSV to Excel

Convert CSV files into Excel workbooks for spreadsheet workflows.

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Data

Excel to JSON

Turn Excel sheets into structured JSON output instantly.

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Data

SQL to JSON

Convert SQL-style row data into JSON objects for modern apps.

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Data

JSON to SQL

Generate INSERT-style SQL statements from JSON arrays.

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Developer Tools

Utilities for modern coding workflows.

11 Powerful Tools Available

Developer

Base64 Converter

Encode or decode plain text as Base64 instantly in your browser.

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Developer

JSON Formatter

Prettify and validate your JSON data for better readability.

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Developer

Markdown Previewer

Write and preview Markdown code in real-time.

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Developer

Password Generator

Generate secure and random passwords for your accounts.

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Developer

Regex Tester

Validate and test your regular expressions with live highlighting and match results.

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Developer

SQL Formatter

Format your SQL queries for better structure and clarity.

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Developer

Text Diff Checker

Compare two pieces of text and find the differences.

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Developer

Timestamp Converter

Convert between Unix timestamps and human-readable dates in various formats.

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Developer

URL Encoder

Encode or decode URLs to ensure safe transmission of data.

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Developer

UUID Generator

Generate secure, random UUID v4 strings for your applications and databases.

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Developer

XML to JSON

Convert XML data structures to JSON format effortlessly.

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Units Tools

Evergreen measurement and unit converters.

13 Powerful Tools Available

Units

Length Converter

Convert between meters, feet, kilometers, miles, and other length units.

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Units

Weight & Mass Converter

Convert kilograms, pounds, grams, and ounces with instant results.

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Units

Temperature Converter

Convert Celsius, Fahrenheit, and Kelvin values in one place.

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Units

Time Converter Tool

Convert seconds, minutes, hours, days, and weeks with ease.

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Units

Speed Converter

Convert km/h, mph, m/s, and other speed units instantly.

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Units

Data Storage Converter

Convert bytes, KB, MB, GB, and TB for storage and transfer calculations.

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Units

Area Converter

Convert square meters, feet, acres, and hectares quickly.

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Units

Volume Converter

Convert liters, milliliters, gallons, and cubic measurements quickly.

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Units

Angle Converter

Convert degrees, radians, gradians, and turns instantly.

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Units

Force Converter

Convert newtons, pound-force, dynes, and related force units.

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Units

Fuel Converter

Convert between MPG, km/l, and liters per 100 km.

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Units

Pressure Converter

Convert bar, psi, pascal, atm, and other pressure units.

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Units

Torque Converter

Convert Nm, lb-ft, and other torque measurements.

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Video Tools

Browser-based video format converters and clip tools.

5 Powerful Tools Available

Video

MP4 to MP3

Extract MP3 audio tracks from MP4 video files in the browser.

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Video

MP4 to AVI

Convert MP4 video files into AVI format with browser-side FFmpeg.

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Video

AVI to MP4

Convert AVI files into MP4 format for easier playback and sharing.

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Video

MOV to MP4

Turn MOV recordings into MP4 files for broader compatibility.

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Video

Video to GIF

Create looping GIFs from short video clips directly in your browser.

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Audio Tools

Audio format converters for quick browser-side exports.

5 Powerful Tools Available

Audio

MP3 to WAV

Convert MP3 files into WAV audio for editing and production workflows.

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Audio

WAV to MP3

Compress WAV files into smaller MP3 audio exports.

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Audio

MP3 to AAC

Convert MP3 audio into AAC format for modern playback devices.

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Audio

AAC to MP3

Convert AAC files back into MP3 audio with local processing.

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Audio

Audio to OGG

Convert supported audio files into OGG format using browser-side FFmpeg.

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Text Tools

Text and markup converters for everyday content workflows.

6 Powerful Tools Available

Text

Text to PDF

Export plain text content into a downloadable PDF file.

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Text

Text to HTML

Wrap plain text into clean HTML markup for reuse on the web.

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Text

HTML to Text

Strip HTML tags and recover readable plain text instantly.

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Text

Markdown to HTML

Render Markdown content into HTML output in the browser.

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Text

HTML to Markdown

Convert HTML snippets into editable Markdown output.

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Text

Text to CSV

Split plain text lines into CSV-ready rows for export and cleanup.

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Archive Tools

Archive creation and repack tools for common formats.

4 Powerful Tools Available

Archive

File to ZIP

Bundle multiple files into a single ZIP archive in your browser.

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Archive

RAR to ZIP

Wrap uploaded RAR content into a ZIP download for quick sharing.

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Archive

TAR to ZIP

Convert TAR uploads into ZIP downloads for easier distribution.

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Archive

ZIP to RAR

Repackage ZIP uploads into a downloadable RAR-style archive file.

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Ebook Tools

Ebook conversion utilities for EPUB, MOBI, and PDF workflows.

4 Powerful Tools Available

Ebook

EPUB to PDF

Turn EPUB ebooks into portable PDF exports for easier sharing.

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Ebook

PDF to EPUB

Create a basic EPUB export from a PDF upload right in the browser.

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Ebook

MOBI to EPUB

Convert MOBI ebook files into EPUB downloads for broader compatibility.

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Ebook

EPUB to MOBI

Convert EPUB files into MOBI-style downloads for Kindle workflows.

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Email Tools

Email marketing and outreach utilities.

15 Powerful Tools Available

Email

AI Email Writer

Generate email drafts with AI.

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Email

Case Converter

Switch between text cases.

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Email

Email Extractor

Extract emails from web pages.

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Email

Email Finder

Find the most likely email address formats for a person at a company domain and check the domain accepts mail.

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Email

Email Permutator

Generate email variations.

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Email

Email Verifier

Check an email address for valid syntax, a working mail server, and disposable or role-based risks.

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Email

Emoji Previewer

Pick high-converting emojis.

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Email

Free Email Signature Generator

Create professional email signatures.

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Email

Free No-Code Email Editor

Design professional HTML email templates.

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Email

List Deduplicator

Remove duplicate emails.

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Email

Readability Analyzer

Check word count and complexity.

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Email

Spam Word Checker

Scan for spam triggers.

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Email

SPF Record Checker

Verify domain security.

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Email

Subject Line Analyst

Analyze your subject lines.

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Email

UTM Link Builder

Track campaign performance.

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Student Tools

Everyday academic and utility helpers.

8 Powerful Tools Available

Student

Age Calculator

Find your exact chronological age in years, months, and days.

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Student

BMI Calculator

Check your body mass index and health category based on WHO metrics.

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Student

CGPA to Percentage

Convert academic CGPA to percentage using standardized university formulas.

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Student

Discount Calculator

Find the final price and your total savings during sales and offers.

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Student

Final Grade Calculator

Find out what score you need on your final exam to reach the overall course grade you want.

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Student

GPA Calculator

Calculate your semester and cumulative GPA on the 4.0 scale from letter grades and credit hours.

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Student

Random Number

Generate unbiased random numbers within your specified range.

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Student

Time Calculator

Add, subtract, and convert time durations and intervals effortlessly.

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Everyday Tools

Useful daily life calculators and planners.

11 Powerful Tools Available

Everyday

Age Difference Calculator

Calculate the exact age difference between two people or dates in years, months, and days.

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Everyday

Anniversary Calculator

Track relationship milestones — days together, upcoming anniversary, and more.

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Everyday

Birthday Countdown

See how many days until your next birthday with zodiac sign detection.

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Everyday

Cooking Measurement Converter

Convert cups to grams, tablespoons to teaspoons and ounces to millilitres for common baking ingredients.

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Everyday

Date Calculator

Add or subtract days from any date to find the resulting calendar date.

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Everyday

QR Code Generator

Create free, permanent QR codes for URLs, Wi-Fi, text, email and phone numbers, and download them as PNG or SVG.

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Everyday

Reading Time Calculator

Estimate how long it takes to read or speak any article or text.

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Everyday

Sleep Calculator

Find optimal bedtime or wake-up time based on 90-minute sleep cycles.

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Everyday

Time Difference Calculator

Find the exact difference between two clock times in hours, minutes, and seconds.

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Everyday

Tip Calculator

Work out the tip, the total bill and how much each person pays when splitting the check.

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Everyday

Work Hours Calculator

Calculate weekly, monthly, and annual work hours and expected earnings.

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Math Tools

Math calculators for fast problem solving.

10 Powerful Tools Available

Math

Exponent Calculator

Calculate powers, scientific notation, and inverse exponents using x^n.

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Math

Fraction Calculator

Add, subtract, multiply and divide fractions with the answer simplified automatically.

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Math

GCD Calculator

Find the Greatest Common Divisor using the Euclidean algorithm with steps.

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Math

LCM Calculator

Find the Least Common Multiple using LCM = |a×b| / GCD(a,b).

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Math

Log Calculator

Calculate logarithms in any base — log₁₀, ln, log₂, and custom base.

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Math

Percentage Decrease

Calculate the percentage decrease between two values accurately.

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Math

Percentage Increase

Calculate the percentage increase between two values with the exact formula.

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Math

Ratio Calculator

Simplify ratios, convert to decimals/percentages, and scale proportionally.

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Math

Scientific Calculator

Free online scientific calculator with trigonometry, square roots, powers and π.

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Math

Square Root Calculator

Calculate square roots, cube roots, and check for perfect squares.

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Statistics Tools

Statistics and probability calculators.

7 Powerful Tools Available

Statistics

Combination Calculator

Calculate combinations C(n,r) = n!/(r!(n−r)!) for unordered selections.

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Statistics

Confidence Interval

Calculate confidence intervals for population means with z-scores.

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Statistics

Mean, Median & Range Calculator

Find the mean, median, sum, range, minimum and maximum of any list of numbers.

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Statistics

Permutation Calculator

Calculate permutations P(n,r) = n!/(n−r)! for ordered arrangements.

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Statistics

Probability Calculator

Calculate the probability of an event — P(A) = favorable / total outcomes.

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Statistics

Standard Deviation

Compute Population and Sample Standard Deviation from any dataset.

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Statistics

Z-Score Calculator

Calculate the Z-score and corresponding percentile using z = (x−μ)/σ.

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Physics Tools

Physics calculators for motion and force.

7 Powerful Tools Available

Physics

Acceleration Calculator

Calculate acceleration, g-force, and distance using a = (v₂−v₁)/t.

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Physics

Energy Calculator

Calculate Kinetic Energy (½mv²) and Potential Energy (mgh) of objects.

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Physics

Force Calculator

Apply Newton's Second Law (F = m × a) to compute the net force.

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Physics

Momentum Calculator

Calculate linear momentum using p = m × v with related kinetic energy.

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Physics

Speed Distance Time Calculator

Calculate speed, distance or time with v = d / t in the units you need.

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Physics

Velocity Calculator

Calculate velocity from distance and time with unit conversions (m/s, km/h, mph).

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Physics

Work Calculator

Calculate work done by a force over a distance (W = F × d × cosθ).

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Health Tools

Health calculators for body and wellness.

12 Powerful Tools Available

Health

Advanced BMI

Calculate BMI with WHO classifications, ideal weight range, and BMI Prime.

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Health

BMR Calculator

Calculate Basal Metabolic Rate using Mifflin-St Jeor and Harris-Benedict equations.

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Health

Body Fat Calculator

Estimate body fat percentage using the U.S. Navy method based on measurements.

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Health

Calorie Calculator

Calculate your BMR and daily calorie needs (TDEE) to maintain, lose or gain weight with the Mifflin-St Jeor equation.

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Health

Ideal Weight Calculator

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

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Health

Macro Calculator

Find your daily calories and grams of protein, carbs and fat to lose fat, maintain weight or build muscle.

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Health

One Rep Max Calculator

Estimate your 1RM from any set of 1–12 reps using the Epley, Brzycki and Lombardi formulas, with training percentages.

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Health

Ovulation Calculator

Find your estimated ovulation date and most fertile days across your next three menstrual cycles.

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Health

Pregnancy Due Date Calculator

Estimate your due date, how many weeks pregnant you are and key trimester dates from your last period.

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Health

Protein Calculator

Work out how many grams of protein you need each day based on your body weight and training goal.

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Health

Running Pace Calculator

Calculate pace per mile and kilometre, your speed, and predicted 5K, 10K, half marathon and marathon times.

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Health

Water Intake Calculator

Calculate daily water intake based on weight, activity level, and climate.

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Construction Tools

Construction and measurement calculators.

6 Powerful Tools Available

Construction

Area Calculator

Calculate the area of rectangles, circles, triangles and trapezoids.

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Construction

Concrete Calculator

Calculate concrete needed in cubic yards, meters, and bags for your project.

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Construction

Paint Calculator

Calculate gallons of paint needed for any room, accounting for doors and windows.

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Construction

Square Footage Calculator

Calculate area in square feet, square meters, and acres for any room or lot.

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Construction

Tile Calculator

Calculate tiles needed with grout gaps and waste factor for floors and walls.

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Construction

Volume Calculator

Calculate volume of boxes, cylinders, spheres, and cones in multiple units.

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File Tools

File conversion and document utilities.

3 Powerful Tools Available

File

Image Compressor

Reduce image file size without losing quality using browser-side compression.

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File

Image Resizer

Change image dimensions to specific pixels or percentages instantly.

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File

Text File Gen

Create and download .txt files from any text input instantly.

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