Muxtly - Free Online Tools
All tools run locally in your browser. No data uploaded, safe and fast.
Why Choose Muxtly?
Muxtly offers hundreds of free online calculators, converters, and generators that run entirely in your browser. No data leaves your device โ every calculation happens locally for maximum privacy. Whether you need a BMI calculator for health tracking, a mortgage calculator for home buying, or a QR code generator for marketing, Muxtly provides fast, accurate results with no registration required. All tools work on desktop and mobile.
๐ฅ Popular Tools
Scientific Calculator
Use our free online scientific calculator for trigonometry, logarithms, exponent
Fraction Calculator
Add, subtract, multiply, and divide fractions with our free fraction calculator.
BMI Calculator
Calculate your BMI with our free online BMI calculator. Enter height and weight
Mortgage Calculator
Calculate your monthly mortgage payment online for free. Enter loan amount, inte
Date Calculator
Calculate days between two dates or add/subtract days from any date with our fre
Word Counter
Count words, characters, sentences, paragraphs, and reading time online for free
Temperature Converter
Convert temperature between Celsius, Fahrenheit, and Kelvin instantly with this
Weight Converter
Convert weight and mass between kilograms, grams, pounds, and ounces instantly.
QR Code Generator
Generate custom QR codes online for free. Create QR codes for URLs, text, and Wi
Square Footage Calculator
Calculate square footage, square meters, and more with our free area calculator.
๐ฅ Health View All โ
Army Body Fat Calculator
Free online army body fat calculator. Calculate body fat percentage using the US
Baby Growth Percentile Calculator
Check your babyโs growth percentile on WHO charts. Enter age, gender, weight, le
BAC Calculator
Estimate your Blood Alcohol Content (BAC) based on drinks, body weight, gender a
BMI Calculator
Calculate your BMI with our free online BMI calculator. Enter height and weight
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) online for free using the Mifflin-St J
Body Fat Calculator
Estimate your body fat percentage online for free. Enter measurements for an app
Free Calorie Calculator
Calculate your daily calorie needs with our free Calorie Calculator. Get BMR and
Calorie Deficit Calculator
Free online calorie deficit calculator. Calculate the exact calorie deficit need
๐ฐ Finance View All โ
13th Salary Calculator
Estimate your 13th salary or 13th month pay with our free global calculator. Com
401(k) Calculator
Free 401(k) retirement calculator. Project your 401(k) balance at retirement wit
Christmas Bonus Calculator
Calculate your 2026 Christmas bonus: gross amount, ISR exemption, and how much n
How to Calculate the Christmas Bonus
Learn how to calculate your aguinaldo (Christmas bonus) step by step: daily sala
Amortization Calculator
Generate a full loan amortization schedule with our free calculator. See monthly
Annuity Calculator
Free annuity calculator. Compute present value (PV) and future value (FV) of ord
APR Calculator
Calculate the true Annual Percentage Rate (APR) of a loan including fees. Enter
APY Calculator
Calculate the Annual Percentage Yield (APY) with compounding. Enter principal, r
๐ข Math View All โ
555 Timer Calculator
555 timer calculator: find frequency, duty cycle, and component values for astab
Acceleration Calculator
Free acceleration calculator: compute a = (vf โ vi)/t from initial/final velocit
Basic Calculator
Free basic calculator for addition, subtraction, multiplication, division, perce
BJT Transistor Bias Calculator
BJT transistor bias calculator: find Q-point voltages and currents for voltage d
Boyle's Law Calculator
Boyle's Law calculator: find any one of Pโ, Vโ, Pโ or Vโ given the other three.
Butterworth Filter Calculator
Butterworth filter calculator computes L and C values for Tee and Pi low-pass an
Capacitor Energy Calculator
Capacitor energy calculator: compute stored energy (E = 1/2 CVยฒ), charge (Q = CV
Centripetal Acceleration Calculator
Centripetal acceleration calculator for circular motion. Enter radius and speed,
๐ Date & Time View All โ
Age Calculator
Calculate your exact age in years, months, and days online for free. Perfect for
Business Day Calculator
Free online business day calculator. Add or subtract working days from any date,
Calendar Generator
Free online calendar generator. Create clean, printable monthly calendars for an
Countdown Timer
Count down the days, hours, and minutes to any event online for free. Perfect fo
Date Calculator
Calculate days between two dates or add/subtract days from any date with our fre
Date Difference Calculator
Calculate the exact days, months, and years between two dates online for free. P
Day of Year Calculator
Free online day of year calculator. Find out what day of the year any date falls
Epoch Converter
Free online Unix epoch timestamp converter. Convert between Unix timestamps (sec
๐ Text Tools View All โ
Base64 Encoder Decoder
Encode text to Base64 or decode Base64 strings back to readable text. Free onlin
Case Converter
Convert text to uppercase, lowercase, title case, and more online for free. Quic
Character Counter
Count characters, words, sentences, and paragraphs instantly. Free online charac
Email Validator
Validate email addresses instantly with detailed format checking. Free online em
Find and Replace
Find and replace text instantly with case-sensitive and whole word options. Free
Furigana Generator
Add furigana readings above kanji in Japanese text. Free browser-based furigana
Gift Envelope Kanji Converter
Convert any yen amount into old-style kanji (ๅคงๅญ) for Japanese gift envelopes: ้ๅฃฑ
Japan Address Formatter
Build a correct Japanese address: ใ postal code, prefecture, city, town, block,
๐ ๏ธ Generators View All โ
Barcode Generator
Free online barcode generator. Create Code128 barcodes from text. Download as PN
Canada Holidays Checker
Find Canadian statutory holidays for any province or territory and year. See fed
Canadian Postal Code Lookup
Validate a Canadian postal code (A1A 1A1) and see which province or territory it
Color Palette Generator
Free online color palette generator. Create beautiful color schemes with complem
Color Picker
Pick a color and instantly get HEX, RGB, and HSL values. Free online color picke
Coupon Code Generator
Free online coupon code generator. Create random promo codes, discount codes, an
Convert Cups, Tablespoons and Teaspoons Online
Convert cups to tablespoons and teaspoons and back online for free. Get instant
Decision Maker
Free online decision maker tool. Make hard choices easier. Pick random options f
๐ Converters View All โ
Angle Converter
Free online angle converter. Convert between degrees, radians, gradians, turns,
Area Converter
Convert area between square meters, square feet, acres, and hectares instantly.
Bu Area Converter
Convert bu (Japanese area unit = 3.306 m2 = 1 tsubo) to square meters, square fe
Cho Area Converter
Convert cho (Japanese agricultural area unit = 9917 m2) to hectares, acres, m2,
Cups to mL Converter
Convert US cups to milliliters and back. Get exact baking and cooking measuremen
Dashi Yield Calculator
Calculate how much kombu, katsuobushi, niboshi or dried shiitake you need for th
Data Storage Converter
Convert digital storage between bytes, kilobytes, megabytes, gigabytes, and tera
Energy Converter
Free online energy converter. Convert between joules, kilojoules, calories, kilo
๐๏ธ Construction View All โ
Average Calculator
Calculate the average (mean), median, mode, and range of any set of numbers inst
BTU Calculator
Free BTU calculator for sizing air conditioners and heaters. Enter room dimensio
Carpet Calculator
Calculate how much carpet you need for any room. Enter room dimensions to get ex
Concrete Calculator
Estimate concrete volume for slabs, columns, and tubes with our free concrete ca
Gravel Calculator
Calculate how much gravel you need for driveways, pathways, and landscaping. Ent
Mulch Calculator
Calculate how much mulch you need for garden beds and landscaping. Enter bed dim
Paint Calculator
Calculate how much paint you need for any room. Enter wall dimensions, doors, wi
Square Footage Calculator
Calculate square footage, square meters, and more with our free area calculator.
๐ Academic View All โ
Battery Life Calculator
Estimate how long a battery will last. Enter the capacity in mAh or Ah and the c
Class Schedule Generator
Create a weekly class schedule for Monday to Friday. Add courses with days and t
Frequency to Wavelength Calculator
Convert frequency to wavelength and back using the speed of light. Enter Hz, kHz
German Grade Average Calculator (Notenschnitt)
German school grade average (Notenschnitt): enter grades 1+ to 6, weight written
GPA Calculator
Calculate your Grade Point Average online for free. Supports percentage, letter
Grade Calculator
Calculate your weighted grade average with our free grade calculator. Add multip
LED Resistor Calculator
Calculate the current-limiting resistor for any LED. Enter supply voltage, LED f
Parallel Resistance Calculator
Work out the total resistance of resistors in parallel. Enter two to four resist
๐ฒ Fun View All โ
Bingo Card Generator
Free online bingo generator. Create random 5x5 bingo cards instantly for classro
BrainBurst 3in1
Train memory, reaction speed and focus in just 3 minutes a day. BrainBurst 3in1
Cat Age Calculator
Calculate your cat's age in human years with our free cat age calculator. Based
Coin Flip
Flip a virtual coin online for free. Get instant Heads or Tails results with a f
Dice Roller
Roll virtual dice online for free. Supports D4, D6, D8, D10, D12, D20, and D100.
Dog Age Calculator
Calculate your dog's age in human years with our free dog age calculator. Uses A
Emoji Picker
Free online emoji picker. Browse emojis by category, search by keyword, and copy
How Many Balloons to Lift You on Each Planet
How many helium balloons would lift you on the Moon, Mars or Jupiter? Calculate
๐ Country & Region Tools
Calculators tailored to local tax, salary, and everyday needs.
Japan Tools
Japan-specific calculators: salary, tax, social insurance, shakkanho units, era converter, ceremonies, and postal utilities.
UK Tools
UK-specific calculators: income tax, National Insurance, SDLT, Universal Credit, ISA, VED, and more.
Spain Tools
Spain-specific calculators: IRPF income tax, IVA VAT, 14-payroll comparison, autonomo quota, postal code lookup, and public holidays.
Germany Tools
Germany-specific calculators: income tax, VAT, net salary, property transfer tax, vehicle tax, holidays, school terms and more.
Portugal Tools
Portugal-specific calculators: IRS income tax, IVA, IMI property tax, Recibos Verdes, 14-month salary, postal codes, and public holidays.
Australia Tools
Australia-specific calculators: income tax, GST, Medicare levy, CGT, HECS, stamp duty, super guarantee and family payments.
United States Tools
US-specific calculators: sales tax, tip calculator, Fahrenheit to Celsius, PMI, rent vs buy, federal holidays and state picker.
โ Curated Collections
Tool combos for common tasks โ grouped by real-world use cases.