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Age Calculator
Calculate age in years, months, days, and total days.
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Search practical browser-based tools, calculators, generators, developer utilities, and design resources. Most tools require no account and process information directly in your browser.
Showing 91 tools
Calculate age in years, months, days, and total days.
Open toolCalculate proportional width and height values for images and video.
Open toolGenerate gradients, patterns, waves, and abstract backgrounds.
Open toolEncode text to Base64 or decode Base64 back to readable text.
Open toolConvert 8-bit binary byte groups back into text.
Open toolPreview corner radii and copy the generated CSS.
Open toolDesign CSS box shadows with a live preview.
Open toolCalculate the unit sales and revenue needed to break even.
Open toolCount weekdays between two dates without including weekends.
Open toolConvert text between uppercase, lowercase, title case, and sentence case.
Open toolFlip a virtual coin using browser-based random values.
Open toolTest text and background colors against WCAG contrast targets.
Open toolCreate useful color combinations and export their values.
Open toolCalculate commission earnings and optional total compensation.
Open toolEstimate investment growth with compound interest.
Open toolSet a countdown and receive an on-screen alert when time expires.
Open toolGenerate responsive CSS clamp values for fluid sizing.
Open toolBuild linear, radial, and conic gradients and copy the CSS.
Open toolBrowse ready-made gradients and copy their CSS.
Open toolRemove comments and unnecessary whitespace from CSS.
Open toolConvert between common CSS length units using a chosen base.
Open toolConvert comma-separated data into formatted JSON.
Open toolPaste CSV data and view it as a readable table.
Open toolFind the number of days, weeks, and hours between two dates.
Open toolRoll common dice and calculate the total instantly.
Open toolCalculate sale prices and savings from a percentage discount.
Open toolRemove repeated lines while preserving their original order.
Open toolGenerate common PNG favicon and application icon sizes from one image.
Open toolFind and replace text with optional case-sensitive matching.
Open toolEstimate fuel use and trip cost from distance, MPG, and fuel price.
Open toolConvert text to hexadecimal values and hexadecimal back to text.
Open toolConvert HEX colors into RGB and HSL values.
Open toolEncode special HTML characters or decode HTML entities.
Open toolFormat HTML into an easier-to-read structure.
Open toolConvert and resize common image formats with a simple workflow.
Open toolCrop an image by entering the left, top, width, and height values.
Open toolFlip images horizontally, vertically, or both.
Open toolView image dimensions, format, file size, and modification date.
Open toolResize an image to exact pixel dimensions and download a PNG.
Open toolRotate images by common angles directly in your browser.
Open toolFormat, validate, minify, and inspect JSON without unnecessary uploads.
Open toolConvert an array of JSON objects into downloadable CSV.
Open toolDecode JWT headers and payloads locally without verifying signatures.
Open toolCheck whether a year is a leap year.
Open toolAdd or remove line numbers from multiline text.
Open toolSort lines alphabetically or numerically in either direction.
Open toolRandomize the order of items in a list.
Open toolEstimate monthly payments and total interest for a fixed-rate loan.
Open toolGenerate placeholder paragraphs for layouts and mockups.
Open toolWrite Markdown and preview the rendered result side by side.
Open toolCalculate selling price and profit from cost and markup.
Open toolEstimate monthly principal and interest payments for a mortgage.
Open toolConvert values between binary, octal, decimal, and hexadecimal.
Open toolCreate strong passwords and memorable passphrases directly in your browser.
Open toolEstimate password strength and see practical improvement suggestions.
Open toolCalculate percentages, proportions, and percentage relationships.
Open toolCompare two values and calculate their percentage difference.
Open toolCalculate gross profit and profit margin from revenue and cost.
Open toolConvert pixel values to rem units using a configurable root size.
Open toolCreate downloadable QR codes for websites, Wi-Fi, contact details, and more.
Open toolBuild properly encoded URL query strings from key-value pairs.
Open toolGenerate random colors and copy their HEX values.
Open toolGenerate one or many cryptographically random numbers within a range.
Open toolChoose one random item from a list using browser-grade randomness.
Open toolGenerate browser-grade random tokens for testing and development.
Open toolRemove blank lines from pasted text while preserving the remaining content.
Open toolCalculate return on investment and net gain.
Open toolConvert whole numbers to Roman numerals and Roman numerals back to numbers.
Open toolEncode or decode text using the reversible ROT13 substitution.
Open toolCalculate sales tax and the final purchase total.
Open toolGenerate SHA-1, SHA-256, SHA-384, and SHA-512 hashes locally.
Open toolTurn titles and phrases into clean URL-friendly slugs.
Open toolStart, pause, reset, and track elapsed time directly in your browser.
Open toolCreate and download editable organic SVG shapes.
Open toolReverse letters and characters instantly in your browser.
Open toolCreate CSS text shadows and copy the finished rule.
Open toolAnalyze characters, words, lines, sentences, and reading time.
Open toolConvert text into UTF-8 binary bytes.
Open toolConvert a date and time between common time zones.
Open toolCalculate a tip, total bill, and amount per person.
Open toolConvert common length, weight, and temperature units.
Open toolConvert Unix timestamps to readable dates and back again.
Open toolSafely encode and decode URLs and query-string values.
Open toolBreak a URL into its protocol, host, path, query, and fragment.
Open toolInspect and clean URL slugs for readability and search-friendly formatting.
Open toolGenerate one or many UUIDs and copy or export the results.
Open toolFind the ISO week number for any date.
Open toolTrim lines, remove blank rows, and collapse extra spaces.
Open toolCount words, characters, lines, and sentences instantly.
Open toolCalculate elapsed working time between a start and end time.
Open toolValidate and format XML with readable indentation.
Open tool