Find the right tool.
One small task. One useful tool. All free, all right here.
Word Counter
Count words, characters, sentences and estimated reading time in essays, articles and social posts.
JSON Formatter
Format, validate or minify JSON online with readable indentation and syntax error locations.
Percentage Calculator
Calculate a percentage of a number, percentage increase or decrease, and one number as a percentage of another.
Age Calculator
Work out age in years, months and days from a date of birth — today, or as on any date a form asks for.
Base64 Encoder / Decoder
Encode UTF-8 text to Base64 or decode Base64 back to readable text in your browser.
URL Encoder / Decoder
Encode URL components and query values, or decode percent-encoded text into readable characters.
UUID Generator
Generate random version 4 UUIDs individually or in batches, ready to copy into your project.
Slug Generator
Create a clean URL slug from a title with hyphens, underscores or supported Unicode letters.
UTM Link Builder
Build campaign tracking URLs with UTM source, medium, campaign, term and content parameters.
SIP Calculator
Project a mutual fund SIP, with an optional annual step-up, a growth chart and a month-by-month schedule.
Nutrition Calculator
Estimate daily calorie needs and protein, fat and carbohydrate grams using your measurements and activity level.
BMI Calculator
Calculate adult body mass index from height and weight in metric or imperial units, with category context.
Image Compressor
Compress JPG, PNG and WebP images in your browser, or to a target size in KB for a form that caps the upload.
Image Resizer
Resize an image to exact pixel dimensions, or down to a target size in KB, entirely in your browser.
Signature Resizer
Resize a scanned signature to the dimensions and file size an application form asks for, in your browser.
Merge PDF
Merge multiple PDF files into one document. Arrange the file order and download the combined PDF locally.
Images to PDF
Convert JPG, PNG and WebP images into a PDF document with control over page order and layout.
QR Code Generator
Create a static QR code for a URL or text, customize its appearance and download it for print or sharing.
Password Generator
Generate random passwords with configurable length, letters, numbers and symbols using browser cryptographic randomness.
Coin Flip
Flip a virtual coin once or in batches. See heads and tails counts and the sequence of random results.
EMI / Loan Calculator
Calculate monthly EMI, total loan interest and repayment cost with a monthly or yearly amortization schedule.
Compound Interest Calculator
Compound interest with daily, monthly, quarterly or yearly compounding, a growth chart and a full schedule.
Temperature Converter
Switch between Celsius, Fahrenheit, and Kelvin.
Discount Calculator
Calculate the sale price after a percentage discount and see exactly how much you save.
Ideal Weight Calculator
Reference body weight for a height using the Devine formula, in centimetres or inches, kg and pounds.
Case Converter
Switch text between UPPER, lower, Title, and more.
Hash Generator
Compute SHA-1, SHA-256, SHA-384, and SHA-512 digests.
JWT Decoder
Read the header and payload inside a JWT.
Meta Tag Generator
Build title, description, and Open Graph tags.
Split PDF
Split a PDF online: pull selected pages or ranges out into a new document, without uploading the file.
Passport & ID Photo Maker
Make a passport size photo at 3.5 × 4.5 cm, 2 × 2 in or a custom size — cropped, background-adjusted and compressed to a file-size limit.
Date Difference Calculator
Calculate days between two dates and compare the interval in calendar years, months, weeks and days.
Pregnancy Due Date Calculator
Estimate a pregnancy due date and gestational age from the last menstrual period and average cycle length.
Ovulation Calculator
Estimate ovulation and fertile-window dates from the first day of a period and the average cycle length.
GST Calculator
Add GST to a price or work backwards from a GST-inclusive total, with the base amount, tax and CGST/SGST split.
Water Intake Calculator
Estimate daily water intake from body weight and activity, in litres and glasses or ounces and cups.
Body Fat Percentage Calculator
Estimate body fat percentage from tape measurements using the US Navy method, in centimetres or inches.
Waist-to-Hip Ratio Calculator
Work out waist-to-hip ratio in centimetres or inches and compare it against the WHO screening thresholds.
Heart Rate Zone Calculator
Calculate five training heart rate zones in beats per minute from an age-predicted maximum heart rate.
Savings Goal Calculator
Calculate monthly savings needed to reach a target, with a balance growth chart and deposit schedule.
Invoice Maker
Fill in a form and download a clean PDF invoice.
Biodata Maker
Fill in a form and download a clean matrimonial biodata PDF.
Character Counter
Count Unicode characters, UTF-16 units, and UTF-8 bytes.
Lorem Ipsum Generator
Generate up to 50 paragraphs of placeholder text.
Duplicate Line Remover
Remove repeated lines while preserving their first occurrence.
Remove Line Breaks
Join wrapped text into one continuous line.
Text Line Sorter
Sort lines ascending, descending, or by length.
Find & Replace
Replace every exact occurrence of text in a draft.
Whitespace/Trim Tool
Collapse extra whitespace and trim your text.
Text Reverser
Reverse text while keeping visible character clusters together.
NATO Phonetic Alphabet
Spell Latin letters using NATO phonetic words.
ROT13 / Caesar Cipher
Shift Latin letters for puzzles and educational ciphers.
Text / Binary Converter
Encode text as UTF-8 binary bytes or decode binary back to text.
URL Parser
Inspect the parts of an HTTP or HTTPS URL without visiting it.
Unix Timestamp Converter
Convert Unix seconds, milliseconds, and explicit UTC timestamps.
JSON to CSV Converter
Turn an array of flat JSON objects into quoted CSV.
Tip Calculator
Calculate a tip and split the total bill evenly.
Average & Median Calculator
Find the mean, median, range endpoints, and count of a number list.
Ratio Calculator
Simplify a ratio to its lowest terms, or solve a proportion for the missing value.
Simple Interest Calculator
Calculate simple interest and final balance, with monthly and yearly schedules showing non-compounding growth.
ROI Calculator
Compare total proceeds with the total cost of an investment or project.
Break-Even Calculator
Estimate how many whole units cover fixed and variable costs.
BMR / Resting Energy Calculator
Estimate adult resting energy using the Mifflin–St Jeor equation.
XML Sitemap Generator
Create sitemap XML from a list of URLs without crawling a website.
Hashtag Formatter & Counter
Clean a supplied list of tags, remove exact duplicates, and count them.
Weight Converter
Convert kilograms, grams, pounds, ounces and stones.
Length Converter
Convert metric lengths, inches, feet and miles.
Speed Converter
Convert metres per second, kilometres per hour, mph and knots.
Data Storage Converter
Compare bits, bytes, decimal storage units and binary storage units.
Number Base Converter
Convert signed whole numbers between bases 2 through 36 exactly.
PIN Code Generator
Generate numeric PINs with browser cryptographic randomness.
Dice Roller
Roll multiple virtual dice with a configurable number of sides.
Random Number Generator
Draw whole numbers from an inclusive minimum and maximum.
Random Name Picker
Pick one entry from a private list of names.
Payment Receipt Maker
Prepare a plain-text payment receipt draft to copy into a document.
Image Format Converter
Convert a local JPG, PNG or WebP to another image format.
Image Rotate & Flip
Rotate an image by quarter turns and optionally mirror it.
Rotate PDF
Rotate every page of a PDF by 90, 180 or 270 degrees and save it, without uploading the file.
Add Page Numbers to PDF
Add page numbers to a PDF in the format page / total, written into the file and not uploaded.
Macro (Protein/Carb/Fat) Calculator
Split a daily calorie target into protein, fat, and carbohydrate grams.
Sleep Cycle Calculator
Work out bedtimes or wake-up times based on 90-minute sleep cycles.
Calories Burned Calculator
Estimate calories burned for common activities using MET values.
Reorder & Delete PDF Pages
Reorder, duplicate, or delete pages in a PDF without uploading it.
PDF Page Count & Info Viewer
Check how many pages a PDF has, its page size, whether it is encrypted, and its metadata.
Watermark PDF
Stamp a diagonal text watermark across every page of a PDF.
Mortgage Calculator
A simple mortgage calculator: six numbers in, a monthly payment and a full amortization schedule out.
Fixed Deposit (FD) Calculator
Calculate fixed deposit maturity and interest with quarterly compounding, a growth chart and period-by-period schedule.
Recurring Deposit (RD) Calculator
Estimate recurring deposit maturity, monthly contributions and quarterly interest with a downloadable schedule.
Inflation Calculator
Calculate future equivalent costs and purchasing power under an assumed inflation rate, with monthly and yearly breakdowns.
Net Worth Calculator
Add up your assets and liabilities to find your net worth.
GPA Calculator
Calculate a weighted GPA on the standard 4.0 scale.
Quadratic Equation Solver
Solve ax² + bx + c = 0 for real or complex roots.
Work Hours Calculator
Add up hours worked across shifts, minus breaks.
Timezone Converter
Convert a date and time between world time zones.
Roman Numeral Converter
Convert between whole numbers and Roman numerals.
Open Graph Preview Generator
See how your page title and description get truncated when shared.
Social Post Character Counter
Check post length against X, Threads, Instagram, and LinkedIn limits.
Password Strength Checker
Estimate password strength from character variety and length.
Lottery Number Generator
Draw random lottery numbers with no repeats.
Social Media Image Resizer
Crop a photo to the exact pixel size a platform needs.
Resume Maker
Build a resume from a template and download it as a PDF.
Business Days Calculator
Count the working days between two dates, excluding weekends and any holidays you list.
Countdown Timer
Calculate the days, hours, minutes and seconds between two exact dates and times.
CAGR Calculator
Calculate the compound annual growth rate between an initial and final investment value.
Sales Tax Calculator
Add sales tax to a base price or extract it from a tax-inclusive total.
Volume Converter
Convert liters, milliliters, US and UK gallons, cups and fluid ounces.
Area Converter
Convert square meters, square feet, acres, hectares and square miles.
Color Converter
Convert a color between hex, RGB and HSL notation.
Reading Time Calculator
Estimate how long it takes to read a piece of text at a chosen words-per-minute pace.
Text Diff Checker
Compare two blocks of text line by line and see what was added, removed or unchanged.
Dog Age Calculator
Convert a dog's age into human-equivalent years using a size-adjusted formula.
Magic 8 Ball
Ask a yes-or-no question and get a random classic fortune-telling answer.
Love Calculator
Get a playful compatibility percentage for two names.