A specialised Lekando platform · Quick tools
Quick tools that do real work
12,730 working tools. Private by design: your inputs never leave your device.
76core tools
1,376unit converters
11,260time-difference tools
107world cities
Finance & business
UAE VAT calculator (5%)Add or remove 5% VAT from any amount, with net, VAT and gross.Loan & instalment calculatorMonthly instalment, total interest and a full amortisation schedule.Compound interest & savingsGrow a deposit with monthly contributions and compounding.Profit margin & markupMargin, markup and profit from cost and price — or price from a target margin.Discount calculatorPrice after one or two stacked discounts and how much you save.ROI & break-evenReturn on investment, annualised ROI and break-even units.Zakat calculatorZakat at 2.5% on zakatable wealth above the nisab you enter (85 g of gold at today’s price).Salary breakdown (hourly ⇄ monthly ⇄ yearly)Convert pay between hourly, daily, weekly, monthly and yearly.Invoice / quote line calculatorPaste lines (item | qty | price) to get subtotals, discount, VAT and a CSV.Split the bill & tipShare a bill between people with an optional tip.
Math & calculators
Percentage calculator (all cases)X% of Y, X is what % of Y, percentage change, and increase/decrease by %.Expression calculatorEvaluate expressions with + − × ÷ ^ ( ), sqrt, sin, cos, tan, log, ln, pi and e — safely, without eval.Fractions: simplify & decimalSimplify a fraction, convert to decimal and percentage, or a decimal to a fraction.GCD & LCMFor any list of integers.Prime check & factorisationIs it prime? Its prime factors and divisors.Number base converterBinary, octal, decimal, hexadecimal and any base 2–36.Roman numerals converterNumbers ⇄ Roman numerals (1–3999).Statistics: mean, median, mode, SDDescriptive statistics for a list of numbers.GPA calculator (4.0 scale)Weighted GPA from grades and credit hours.
Date & time
Age calculatorExact age in years, months and days, total days and the next birthday.Days between dates (incl. UAE working days)Calendar days, weeks, months and working days (Mon–Fri) between two dates.Add or subtract days, weeks, monthsFind the date after or before a period, optionally counting working days only.Unix timestamp converterTimestamp ⇄ human date in UTC and Dubai time.Week number & day of yearISO week number, day of the year and quarter for any date.Countdown to a dateDays, hours and minutes until any date and time.Timesheet: hours between timesHours worked with breaks, overnight shifts and overtime.
Text & Arabic
Word & character counterWords, characters, sentences, paragraphs, reading and speaking time — Arabic aware.Remove Arabic diacritics (tashkeel)Strip harakat and tatweel; optionally normalise alef, yaa and taa marbuta.Arabic ⇄ Western digitsConvert ٠١٢٣ ⇄ 0123 (and Persian digits) inside any text.Fix reversed / disconnected Arabic textArabic letters appear reversed or separated in Photoshop, games, video editors or LED signs? Convert the text to connected letter forms in visual order, then paste it there.Find & remove invisible charactersCopied text breaks links, passwords, Excel formulas or search? Detect zero-width spaces, direction marks, BOM and other hidden characters — and clean them.Number to Arabic words (tafqeet)Write amounts in Arabic words — for cheques and invoices (dirhams and fils).Number to English wordsWrite numbers and amounts in English words (AED and fils).Case converterUPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case.Text cleaner & line toolsTrim, remove empty or duplicate lines, sort, reverse, number lines and collapse spaces.Find & replace (with regex)Replace text or patterns across a document, case sensitive or not.Compare two texts (diff)Line-by-line differences between two versions.URL slug generator (Arabic & English)Clean URL slugs; Arabic kept or transliterated to Latin.Arabic → Latin transliterationWrite Arabic names and text in Latin letters (simple scheme).Placeholder text (Lorem ipsum)Paragraphs of Latin placeholder text for mock-ups.
Developer tools
JSON formatter & validatorPretty-print, minify and validate JSON with the error position.JSON ⇄ CSV converterArray of objects to CSV (Excel-ready) and CSV back to JSON.Base64 encode / decodeUTF-8 safe Base64 and Base64URL.URL encode / decode & parserEncode/decode URL components and break a URL into its parts and query parameters.JWT decoderDecode header and payload locally, with expiry in readable time (no verification).Regex testerTest a regular expression: all matches, groups and positions.HTML escape / unescapeEscape text for HTML or decode entities back to text.Cron expression explainerExplain a 5-field cron expression and list its next run times.IP subnet calculator (CIDR)Network, broadcast, mask, host range and count for IPv4 CIDR.UUID / GUID generatorRandom version-4 UUIDs, in bulk.
Security & passwords
Hash generator (MD5, SHA-1, SHA-256, SHA-512)Compute text hashes locally in your browser.Strong password generatorCryptographically random passwords and passphrases with strength estimate.Password strength checkerEntropy, crack-time estimate and weaknesses — nothing leaves your device.Encrypt / decrypt text (AES-256-GCM)Password-based encryption in your browser (PBKDF2 + AES-GCM). Share the ciphertext; share the password separately.
Web, SEO & marketing
QR code generator (SVG & PNG)QR for links, text, Wi-Fi, WhatsApp, email or vCard — download as SVG or PNG.UTM campaign URL builderTag links for Google Analytics campaigns.WhatsApp click-to-chat linkwa.me link with a prefilled message, plus its QR code.SEO meta tags & Open Graph generatorTitle, description, canonical, Open Graph and Twitter cards with length checks.XML sitemap generatorPaste URLs to get a valid sitemap.xml file.Hashtag builder (Arabic & English)Turn keywords into clean hashtags for Instagram, X and TikTok.Email list cleanerExtract, validate, lowercase and de-duplicate emails from any text.
Colors & design
Color converter (HEX, RGB, HSL, CMYK)Convert colors and get tints, shades and a complementary palette.Color contrast checker (WCAG)Contrast ratio and AA/AAA pass for text and UI.Palette generatorAnalogous, triadic, split-complementary and monochrome palettes from one color.CSS gradient generatorLinear or radial gradients with live preview and CSS code.PX ⇄ REM ⇄ EM ⇄ PTCSS size units with a custom root font size.Aspect ratio calculatorSimplify a ratio and scale width/height for video, social posts and screens.
Generators & random
Random name picker & drawPick winners fairly from a list (crypto-random), without repeats.Random number generatorIntegers in a range, unique or not; dice and coin.Random team generatorSplit a list of people into balanced random teams.Barcode generator (Code 128)Printable Code 128 barcodes as SVG for products and inventory.Test data generator (CSV)Realistic placeholder rows (names, emails, UAE-style phones, cities) for testing — clearly fake.
Everyday life
BMI calculatorBody-mass index with the WHO adult categories (general information, not medical advice).Trip fuel cost calculatorFuel needed and cost for a trip, split between passengers.Appliance electricity costkWh and monthly cost of any appliance from watts and hours of use.Typing speed calculatorWords per minute from a text and the time you took.
Unit converters
Length15 units · 210 convertersWeight & mass12 units · 132 convertersArea12 units · 132 convertersVolume15 units · 210 convertersTemperature4 units · 12 convertersSpeed7 units · 42 convertersData size14 units · 182 convertersTime11 units · 110 convertersEnergy10 units · 90 convertersPressure10 units · 90 convertersPower7 units · 42 convertersAngle6 units · 30 convertersFrequency5 units · 20 convertersForce5 units · 20 convertersFuel economy4 units · 12 convertersCooking7 units · 42 converters
World time & time differences
Dubai ⇄ LondonTime difference & converterDubai ⇄ CairoTime difference & converterDubai ⇄ RiyadhTime difference & converterDubai ⇄ KarachiTime difference & converterDubai ⇄ MumbaiTime difference & converterDubai ⇄ ManilaTime difference & converterDubai ⇄ New YorkTime difference & converterDubai ⇄ ParisTime difference & converter
No tool matches your search.
Money calculatorsVAT, loans, zakat, discounts → instant results.Short linksShort link + QR + click stats, no sign-up.Invoices & CVsCreate an invoice, quote or CV and save it as PDF in a minute.Time differences11,000+ time-difference tools between world cities.
📚 Helpful articles & guides
All articles →Simple budgeting with the 50/30/20 rule 💰An easy way to split monthly income — a starting point, not a fixed law.⏱️ 2 minQR codes for your business: a quick guide 🔳Smart ways to use QR codes in restaurants, shops and events — plus printing tips.⏱️ 2 minStrong passwords made easy 🔐How to create a password nobody can guess — and why a password manager is your best friend.⏱️ 2 minThe best free calculators for daily life 🧮When to use percentage, age, loan and unit calculators — with quick examples.⏱️ 2 min
❓ Frequently asked
Is my data uploaded?
No 🔒 calculations run in your browser. Only the link shortener stores the link to redirect it.
Is the VAT calculator official?
It is a helper at the rate you choose. For tax obligations, refer to the official authority or your accountant.