mp3 compressor
utils
A high-performance in-browser audio converter supporting MP3 and WAV input with adjustable bitrate, real-time progress tracking, and LAME.js-powered encoding via Web Workers. Features drag-and-drop upload, instant audio preview, output file comparison.
body fat calculator
utils
A tool that calculates body fat percentage using the U.S. Navy formula. It supports metric and imperial units, shows fat and lean mass, and adjusts for gender and units to help track body composition.
pregnancy conception calculator
utils
Pregnancy Due Date and Development Calculator
billionaires
utils
An interactive tool for exploring the world's wealthiest individuals with live search, category filters (e.g., women, young, self-made), and detailed profile views.
click speed test
utils
Measures how many times a user can click within a selected time duration. Calculates and displays the clicks per second (CPS) along with a rank. Includes retry functionality and theme toggle (dark/light).
dictionary
utils
A dictionary tool that loads and searches definitions from a cached or online source. It displays random words on load, allows live search, and shows definitions with parts of speech if available.
earthquakes
utils
A live earthquake data explorer tool that fetches and displays real-time seismic activity using the USGS API. Users can search earthquakes by date, magnitude, and location, view sorting options, toggle detail views with links to tectonic context, and explore mapped locations via Google Maps.
fake hacker typing
utils
An interactive hacker-style typing simulation with customizable speed, themes, cursor style, and dynamic access granted/denied popups based on typing thresholds. Includes status messages and UI toggle panel.
flashcard maker and viewer
utils
A dynamic flashcard creation and study app with dual maker/viewer modes, rich text editing, local storage support, dark/light themes, and the ability to export cards as high-quality PNG images in a ZIP file.
ip address checker
utils
An interactive IP and domain lookup tool with real-time geolocation, DNS resolution, ISP and proxy detection, and dynamic Leaflet-based map visualization. Supports IP address, domain name, or location input with status overlays, multiple data provider fallback.
open library
utils
A dynamic Open Library-powered book search app with real-time querying, random discovery, detailed previews, and graceful fallback handling. Features include cover art display, responsive modal previews,
periodic table
utils
An interactive periodic table app powered by real-time JSON data from GitHub. It features dynamic category-based filtering, live search, responsive element detail pane, animated Bohr model visualization,
qr code generator
utils
highly customizable QR code generator with real-time UI controls, logo embedding
qr code scanner
utils
QR Code Scanner and Analyzer Widget, designed for use in modern web applications. It offers two primary modes: live camera scanning and image upload analysis.
quiz
utils
a quiz app for all quiz
random password generator
utils
Builds strong passwords based on selected character types (uppercase, lowercase, numbers, symbols),
recipes
utils
This JavaScript tool fetches and manages a collection of recipes with interactive filtering by search terms, favorites, and ingredient selection. It features a sidebar, modal recipe details, a cook-along stepper, ingredient analytics, and a persistent shopping list stored in localStorage. The app supports dynamic ingredient filtering, recipe favoriting, and responsive UI elements optimized for desktop and mobile.
sleep calculator
utils
This Sleep Calculator helps users determine optimal sleep and wake-up times based on sleep cycles, aiming to improve rest quality. It calculates recommended sleep times by considering typical 90-minute sleep cycles and time to fall asleep. The tool provides wake-up time suggestions if the user inputs their bedtime, or ideal bedtimes if they specify a wake-up time, including customizable cycle counts.
tower of hanoi
utils
This Tower of Hanoi tool visually simulates the classic recursive puzzle where disks are moved between rods following specific rules. Users can specify the number of disks, and the tool demonstrates the step-by-step solution using animation or text output, helping learners understand recursion and algorithmic problem-solving.
typing test
utils
This Typing Test tool measures typing speed and accuracy in real-time. Users type randomly generated or custom text passages, and the tool calculates words per minute (WPM), characters per minute (CPM), error rate, and time elapsed. It provides instant feedback, performance stats, and optionally highlights mistakes for skill improvement.
weather
utils
This Weather tool fetches real-time weather data based on the user's location or a searched city. It displays current conditions such as temperature, humidity, wind speed, and weather status using a clean, responsive interface. It supports dynamic icons, unit toggling (Celsius/Fahrenheit), and optional hourly or weekly forecasts.
wiki explorer
utils
The Wiki Explorer tool allows users to search and browse Wikipedia articles seamlessly. It features instant search suggestions, dynamic result loading, and clean article previews. Users can explore summaries, navigate internal links, and optionally open full articles in a new tab — all within a minimal, distraction-free interface.
world map quiz
utils
The World Map Quiz tool challenges users to identify countries
convert numbers to words and words to numbers
text tools
Instantly converts numeric values into words and vice versa for better readability or data formatting.
count punctuation usage
text tools
Analyzes and counts punctuation marks in any input text for writing analysis or formatting.
duplicate sentence detector
text tools
Detects identical sentences within a block of text to eliminate redundancy.
duplicate word finder
text tools
Highlights and lists all duplicate words in a text for error correction or style improvement.
fuzzy text matcher
text tools
Finds similar text entries using fuzzy matching for typo detection or approximate comparison.
indent or unindent
text tools
Adjusts indentation level of any input text or code for cleaner formatting.
json to text
text tools
Extracts plain text from JSON input for readability or lightweight exports.
keyword density checker
text tools
Calculates the frequency and percentage of keyword usage in a body of text for SEO and content analysis.
lexical density analyzer
text tools
Measures the richness of vocabulary by comparing content words to function words.
list manipulator
text tools
Offers various operations on lists such as sorting, reversing, deduplication, and reformatting.
longest shortest word finder
text tools
Identifies the longest and shortest words in any given text.
palindrome checker
text tools
Checks whether a given word or sentence is a palindrome.
random quote generator
text tools
Displays random quotes from a curated list to inspire or entertain.
random text generator
text tools
Produces random text snippets for mockups, filler, or testing purposes.
readability score calculator
text tools
Evaluates and scores the readability of text using standard readability formulas.
regex tester
text tools
Tests and debugs regular expressions on sample input strings.
remove duplicates
text tools
Removes all duplicate lines or entries from the given text.
remove extra spaces
text tools
Cleans up extra spaces from input text—between words, lines, or at ends.
remove line breaks
text tools
Joins broken lines into continuous text while optionally preserving paragraphs.
scramble unscramble text
text tools
Randomizes or restores the order of characters or words for fun or puzzles.
simple grammer checker
text tools
Performs basic grammar checks on input text to detect common mistakes.
simple html to text
text tools
Removes all HTML tags and converts the input into plain text.
simple xml to text
text tools
Extracts readable text from structured XML input.
text case converter
text tools
Converts text to various cases like UPPERCASE, lowercase, Title Case, or Sentence case.
text difference checker
text tools
Compares two blocks of text and highlights the differences between them
text encryptor
text tools
Encrypts and decrypts input text using basic reversible methods to demonstrate text obfuscation or secret messaging.
text line wrapper
text tools
Wraps long lines of text into multiple lines based on a specific character count or word limit for better layout control.
text reverser
text tools
Reverses the order of characters or words in a given text for fun, puzzles, or simple transformation needs.
text splitter
text tools
Splits input text into parts based on words, characters, lines, or custom delimiters to aid in data formatting or processing.
text statistics generator
text tools
Generates detailed statistics about a given text including character, word, and sentence counts to help evaluate writing structure.
text string to json
text tools
Converts structured plain text into JSON format, automatically detecting keys and values for easy API or data use.
text to ascii
text tools
Converts input text into ASCII values to help understand encoding or inspect character-level data.
text to html
text tools
Converts plain text into HTML-formatted output with basic tags like paragraphs, line breaks, or bold/italic styling.
text to morse code converter
text tools
Converts text into Morse code and back, using dots and dashes to simulate the classic communication method.
text to unicode converter
text tools
Translates each character of input text into its Unicode code point value for encoding, debugging, or multilingual work.
text to xml
text tools
Converts input text into structured XML format using automatic or customizable tags for data transformation or display.
vowel and consonants counter
text tools
Counts the number of vowels and consonants in a given text to analyze sound balance or writing structure.
word counter
text tools
Counts the number of words in a text input to help meet length requirements or track writing volume.
angle converter
num
Converts angles between degrees and radians.
area calculator
num
Calculates area of common geometric shapes.
array analyzer
num
Analyzes arrays to find stats like mean, median, mode, etc.
auto loan calculator
num
Calculates monthly payments and interest for auto loans.
basic calculator
num
Performs basic arithmetic operations.
calorie calculator
num
Estimates daily calorie needs based on user profile.
central tendency calculator
num
Calculates mean, median, and mode of values.
cm to inches
num
Converts centimeters to inches and vice versa.
credit card number validator
num
Validates credit card numbers using Luhn's algorithm.
dice roller
num
Simulates rolling dice for games or random outcomes.
divisibility checker
num
Checks if a number is divisible by another.
energy converter
num
Converts between energy units like joules, kWh, and BTUs.
flip a coin
num
Simulates flipping a coin for heads or tails.
force converter
num
Converts force between units such as newtons, lbf, and dynes.
fraction calculator
num
Performs calculations and simplifications with fractions.
fuel consumption converter
num
Converts between fuel economy units like MPG and L/100km.
gpa calculator
num
Calculates GPA from grades and credits.
grade calculator
num
Converts numeric marks to letter grades and calculates averages.
hcf calculator
num
Finds the highest common factor of two or more numbers.
iban or upi validator
num
Validates IBAN or UPI codes for banking and transfers.
interest calculator
num
Calculates simple and compound interest for loans or investments.
lcm calculator
num
Finds the least common multiple of two or more numbers.
matrix vector calculator
num
Solves matrix and vector operations including multiplication, inverse, and dot product.
number bases calculator
num
Performs arithmetic and calculations in various number bases.
number bases converter
num
Converts numbers between binary, decimal, octal, and hexadecimal.
number classifier
num
Classifies numbers as prime, composite, odd, even, perfect, or square.
number formatter
num
Formats numbers with commas, rounding, decimals, or scientific notation.
number guessing game
num
A fun interactive game to guess a randomly generated number.
number sorter
num
Sorts a list of numbers in ascending or descending order.
number table generator
num
Generates customizable number tables (e.g., multiplication, sequences).
number to words converter
num
Converts numbers into words (e.g., 123 → one hundred twenty-three).
percentage calculator
num
Calculates percentages, percent changes, and percentage of totals.
percentile and quartile calculator
num
Calculates percentiles, quartiles, and interquartile range of data sets.
power converter
num
Converts between units of power like watts, horsepower, BTU/hr, and kW.
pressure converter
num
Converts units of pressure like pascal, bar, atm, psi, and torr.
probability calculator
num
Calculates probability of simple and compound events.
random number generator
num
Generates random numbers within a given range or quantity.
rock paper scissors
num
Simulates the classic Rock-Paper-Scissors game online.
roi and profit calculator
num
Calculates return on investment and net profit from cost and revenue.
roman numeral converter
num
Converts between Roman numerals and decimal numbers.
scientific calculator
num
Performs scientific calculations including trig, logs, and powers.
unit converter
num
Converts units across categories like length, mass, temperature, and more
variability calculator
num
Calculates statistical measures of variability such as range, variance, standard deviation, and interquartile range to assess the spread and consistency in a dataset.
bulk image resizer
image tools
Resize multiple images at once by setting custom dimensions, maintaining aspect ratio, and optimizing for web use.
draw insert signature
image tools
Draw and insert a digital signature using your mouse or touchpad for documents and forms.
generate insert signature
image tools
Generate a typed signature with various font styles and instantly insert it into images or documents.
image aspect ratio
image tools
Calculate or convert image aspect ratios to maintain proper proportions during resizing or editing.
image black and white
image tools
Instantly convert images to black and white (grayscale) with optional intensity controls.
image collage
image tools
Create a custom photo collage by combining multiple images into one layout with adjustable grid styles.
image compare
image tools
Compare two images side-by-side or with a slider to highlight differences or changes.
image compressor
image tools
Compress images to reduce file size while preserving quality, perfect for web uploads and faster sharing.
image converter
image tools
Convert images from one format to another (JPG, PNG, WebP, BMP, etc.) instantly and in bulk.
image editor
image tools
Edit images directly in the browser with tools for cropping, rotating, filters, annotations, and more.
image resizer
image tools
Resize a single image by setting new dimensions with options to lock aspect ratio or fit specific requirements.
image to tiles
image tools
Split an image into smaller tiles (rows and columns) for design, puzzles, or web purposes.
image watermark
image tools
Add text or logo watermarks to images to protect or brand them before sharing or publishing.
passport photo maker
image tools
Create passport or visa-sized photos with proper dimensions and optional background removal for various countries.
website mockup generator
image tools
Generate clean device mockups of websites or screenshots for portfolio display or client presentation.
country info
geo
View detailed information for any country, including population, currency, capital, time zone, area, and flag.
country
geo
Convert between ISO country codes and full country names or browse country listings easily.
world map quiz
geo
Interactive world map quiz to test your knowledge of country names, locations, flags, and capitals.
break even point calculator
finance
Calculate the break-even point where your revenues equal your costs, essential for pricing and business planning.
budget planner tool
finance
Plan monthly budgets, categorize expenses, and track savings to manage personal or household finances.
compound annual growth rate calculator
finance
Calculate the Compound Annual Growth Rate (CAGR) for investments over multiple years.
credit card number validator
finance
Validate a credit card number using the Luhn algorithm to check for correct structure and type.
credit card payoff calculator
finance
Plan and calculate how long it will take to pay off credit card debt with interest included.
crypto converter
finance
Convert between cryptocurrencies and fiat currencies using real-time exchange rates.
currency arbitrage finder
finance
Detect profitable currency arbitrage opportunities between multiple currencies using real-time data.
currency formatter
finance
Format numbers into readable currency strings with symbols, separators, and localized notation.
dividend yield calculator
finance
Calculate the dividend yield of a stock based on its market price and annual dividend payout.
emi calculator
finance
Calculate your Equated Monthly Installments (EMI) based on loan amount, interest, and tenure.
financial goal tracker
finance
Track progress toward personal financial goals with visual progress and target tracking.
iban or upi validator
finance
Validate IBAN or UPI codes for structure and format correctness before making international or domestic transfers.
income tax calculator
finance
Estimate your income tax liability based on salary, deductions, and applicable tax brackets.
interest calculator
finance
Calculate simple or compound interest earned or paid over time on investments or loans.
interest rate converter
finance
Convert interest rates between different time periods (e.g., monthly to annual) or types (APR ↔ EAR).
live currency converter
finance
Convert currencies using live exchange rates across hundreds of global currencies.
loan calculator
finance
Estimate monthly repayments, total interest, and loan schedules for any loan type.
number to currency words
finance
Convert numeric amounts into full currency words (e.g., 1234 → “One Thousand Two Hundred Thirty-Four Dollars”).
receipt generator
finance
Create realistic, printable receipts with itemized details, taxes, totals, and custom info.
retirement savings estimator
finance
Estimate how much you'll need to save for retirement and how your current savings will grow over time.
rule of 72 calculator
finance
Use the Rule of 72 to estimate how long it takes for an investment to double at a given interest rate.
salary breakdown calculator
finance
Analyze gross vs net salary with detailed breakdown of taxes, benefits, allowances, and take-home pay.
sip calculator
finance
Calculate returns and maturity value for systematic investment plans (SIPs) in mutual funds.
stock profit calculator
finance
Estimate the profit or loss from buying and selling stocks, including fees or taxes.
tip calculator
finance
Calculate restaurant tips and split bills among a group with adjustable percentages.
unit price calculator
finance
Calculate the cost per unit of items to compare prices and find the best deals.
world currency rates monitor
finance
Track live currency exchange rates and fluctuations across global markets in one dashboard.
archive extractor
file tools
Extract files from compressed archives like ZIP, RAR, 7z, and TAR directly in your browser.
csv and excel column swapper
file tools
Rearrange or swap columns in CSV and Excel files easily without opening a spreadsheet program.
csv column extractor
file tools
Extract one or more columns from a CSV or Excel file for analysis or processing.
csv excel column combiner
file tools
Combine multiple columns from a CSV or Excel file into one unified column.
docx file viewer
file tools
View and read .DOCX files in your browser without needing Word or Office software.
file compressor tool
file tools
Compress files to reduce size for storage, sharing, or uploading purposes.
file difference or similarity checker
file tools
Detect differences or similarities between two text, code, or data files quickly.
file merger
file tools
Merge multiple files into one unified document or data file.
file renamer batch tool
file tools
Rename multiple files at once using patterns, rules, or sequences.
file splitter
file tools
Divide large files into smaller parts by size or number of lines.
file viewer
file tools
Preview and inspect file contents directly in your browser without installing software.
multi file converter
file tools
Convert between different file formats such as CSV, JSON, TXT, DOCX, and more.
multi file merger
file tools
Merge multiple files of the same or different types into one batch document.
multi file reader
file tools
Read and preview multiple files simultaneously for comparison or analysis.
pdf merger
file tools
Merge multiple PDF files into a single document for convenience and storage.
pdf page counter
file tools
Instantly count how many pages are in a PDF file.
pdf text extractor
file tools
Extract raw or formatted text content from any PDF document.
split pdf pages
file tools
Break a multi-page PDF into separate pages or documents.
text file comparator
file tools
Compare two plain text files and highlight differences between them.
text split file tool
file tools
Split large text files into smaller parts based on lines, size, or patterns.
zip and unzip
file tools
Create ZIP archives or extract them directly in your browser for free.
aspect ratio calculator
developer tools
Instantly calculate and convert aspect ratios for screens, images, videos, or UI elements.
clipboard viewer
developer tools
View your system clipboard content directly in your browser to inspect copy-paste data.
css minifier
developer tools
Minify and optimize CSS code by removing spaces, comments, and unnecessary characters.
js minifier
developer tools
Minify JavaScript code to reduce file size, improve load time, and optimize performance.
json validator formatter
developer tools
Validate and format JSON data for readability, correctness, and proper syntax.
meta tag generator
developer tools
Generate SEO-friendly meta tags for your website, including title, description, and viewport.
open graph tag builder
developer tools
Create Open Graph meta tags to control how your website appears when shared on social media.
robots txt generator
developer tools
Generate a robots.txt file to manage how search engines crawl and index your website.
sitemap xml generator
developer tools
Generate an XML sitemap to help search engines index your website more efficiently.
age calculator
date and time
Instantly calculate age based on date of birth, showing years, months, and days.
alarm clock
date and time
Set a customizable alarm directly in your browser with snooze and sound features.
birthday countdown
date and time
Countdown the exact time left until your next birthday or someone else's.
calendar
date and time
View, browse, and interact with a digital calendar for any month or year.
daily planner
date and time
Organize tasks, appointments, and goals for your day with a customizable planner.
date formatter tool
date and time
Convert and format date strings into multiple standard formats (ISO, DD-MM-YYYY, etc.).
date range generator
date and time
Generate a list of dates between two given points for scheduling or logging.
date to timestamp converter
date and time
Convert standard date and time into Unix/Epoch timestamps for backend systems.
day of the week finder
date and time
Find out the exact day of the week for any past or future date.
event countdown
date and time
Create a countdown for any event or occasion and track the time remaining.
fiscal quarter calculator
date and time
Identify the fiscal quarter a date falls into, useful for reports and accounting.
julian date converter
date and time
Convert between Gregorian and Julian calendar systems for legacy or scientific use.
next occurrence finder
date and time
Find the next upcoming occurrence of a recurring event or weekday.
random date and time generator
date and time
Generate a random date and/or time within a chosen range for events or testing.
stopwatch
date and time
A browser-based stopwatch for measuring elapsed time with lap and reset features.
time and date calculator
date and time
Add or subtract time from dates or find the duration between two moments.
time duration calculator
date and time
Calculate the exact duration between two dates and times in multiple units.
time tracking tool
date and time
Track time spent on tasks, projects, or activities for productivity or billing.
timer
date and time
Set a countdown timer for tasks, events, or reminders directly in your browser.
timezone converter
date and time
Convert time across different time zones for meetings, events, and coordination.
to do reminder
date and time
Create and manage to-do lists with reminders and scheduled notifications.
week number finder
date and time
Find the ISO week number corresponding to any date.
weekday weekend counter
date and time
Count how many weekdays and weekends are between two dates.
world clock
date and time
Check the current time in any country or major city across time zones.
data normalizer
data tools
Normalize data values for consistency and comparability using standard techniques like Min-Max or Z-score.
data sampler
data tools
Randomly or selectively extract samples from a dataset for testing, training, or analysis.
table filter
data tools
Filter and search rows in a table based on specific column values or keywords.
table markdown converter
data tools
Convert structured table data into clean Markdown table syntax for documentation or wikis.
table sorter
data tools
Sort any table by column values (text or numbers) in ascending or descending order.
table transpose tool
data tools
Instantly swap rows and columns in a table to change its orientation.
value ranker
data tools
Assign ranks to numeric values or list items based on their magnitude or position.