LANGZH

Simple tools, no friction.

A growing collection of free online tools — text, generators, converters, calculators and more. No sign-up, no uploads. Everything runs right in your browser.

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Calculators

29 tools

Age Calculator

Exact age in years, months, days and more.

BMI Calculator

Body Mass Index in metric or imperial units.

BMR Calculator

Basal metabolic rate estimate.

Body Fat Calculator

Estimate body fat percentage.

Business Days Calculator

Count business days between dates.

Calorie Calculator

Calculate daily calorie needs.

Car Payment Calculator

Calculate car loan payments.

Compound Interest Calculator

Calculate compound interest.

Date Difference Calculator

Calculate days between dates.

Days Until Date

Count days until an event.

Discount Calculator

Calculate discounts and savings.

Due Date Calculator

Calculate pregnancy due dates.

Fraction Calculator

Add, subtract, multiply fractions.

GPA Calculator

Calculate your GPA.

Grade Calculator

Calculate final grades.

Hours Calculator

Calculate hours and minutes.

Ideal Weight Calculator

Calculate ideal body weight.

IRR Calculator

Calculate internal rate of return.

Loan Calculator

Monthly payment, total interest and amortization.

Mortgage Calculator

Calculate mortgage payments.

Pace Calculator

Calculate running or walking pace.

Percentage Calculator

Solve common percentage questions instantly.

Retirement Calculator

Plan for retirement.

Sales Tax Calculator

Calculate sales tax amounts.

Savings Calculator

Project savings growth.

Sleep Calculator

Find optimal sleep times.

Square Footage Calculator

Calculate area in square feet.

TDEE Calculator

Total daily energy expenditure.

Tip Calculator

Split the bill and figure out the tip per person.

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Text

26 tools

Bionic Reading

Bold the first letters to speed up reading.

Case Converter

Convert text to UPPER, lower, Title, Sentence and more.

Character Counter

Count characters with and without spaces in real time.

Emoji Remover

Strip emoji and pictographs from text.

Fancy Text Generator

Create stylish Unicode text for bios.

Find and Replace Text

Bulk find and replace, with regex support.

Link Extractor

Pull every URL out of a block of text.

Lorem Ipsum Generator

Generate placeholder paragraphs, sentences or words.

Online Notepad

A distraction-free notepad that saves locally.

Readability Checker

Score how easy your text is to read.

Reading Time Calculator

Estimate reading time for any text.

Remove Duplicate Lines

Delete repeated lines and tidy lists.

Remove Line Breaks

Flatten text by removing line breaks.

Repeat Text

Repeat a string any number of times.

Reverse Text

Reverse characters, words or lines.

Sort Text Lines

Sort lines alphabetically or numerically.

Special Character Remover

Keep only letters, numbers and spaces.

Subtitle To Text

Convert SRT/VTT subtitles into plain text.

Text Chunker

Split long text into sized chunks.

Text Diff Checker

Compare two blocks of text and highlight differences.

Text Formatter

Clean up spacing, case and formatting.

Text To Slug

Convert titles into clean URL slugs.

Title Case Converter

Apply proper title case to headlines.

Typing Speed Test

Measure your words-per-minute typing speed.

Word Counter

Count words, characters, sentences and reading time live.

Words to Pages

Estimate page count from a word count.

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Generators

26 tools

Barcode Generator

Generate common 1D barcodes.

Business Name Generator

Brainstorm brandable business names.

Cat Name Generator

Find a name for your new cat.

Citation Generator

Format citations in common styles.

Coin Flip

Flip a virtual coin.

Dice Roller

Roll dice with any number of sides.

Dragonborn Name Generator

Generate Dragonborn fantasy names.

Elf Name Generator

Generate elf fantasy names.

Fake Name Generator

Generate random fake names.

Hacker Typer

Type like a Hollywood hacker.

Height Comparison

Compare your height with celebrities.

Lottery Number Generator

Generate random lottery numbers.

Orc Name Generator

Generate orc fantasy names.

Passphrase Generator

Generate memorable passphrases.

Password Generator

Strong random passwords with adjustable rules.

Phone Number Generator

Generate fake phone numbers.

PIN Generator

Generate random PIN codes.

QR Code Generator

Turn any text or URL into a downloadable QR code.

Random List Shuffler

Shuffle and randomize lists.

Random Number Generator

Random integers in any range, unique or repeating.

Random Team Generator

Divide people into random teams.

Random Word Generator

Generate random words.

Username Generator

Generate unique usernames.

Warrior Cat Name Generator

Generate Warrior cat names.

Wheel Spinner

Spin a virtual wheel.

Yes or No Generator

Get yes or no answers.

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Converters

18 tools

Area Converter

Convert between area units.

ASCII Converter

Convert text to and from ASCII codes.

Bytes to KB MB GB

Convert digital storage units.

Celsius to Fahrenheit

Convert temperatures both ways.

Cm to Inches Converter

Convert centimeters and inches.

Delete PDF Pages

Remove pages from a PDF.

JPG to PDF

Convert images to PDF.

Kg to Lbs

Convert kilograms and pounds.

Km to Miles Converter

Convert kilometers and miles.

Merge PDF

Combine multiple PDFs into one.

Morse Code Translator

Translate text to and from Morse code.

Number Base Converter

Convert between number bases.

PDF to JPG

Convert PDF pages to images.

PDF Tools

Various PDF manipulation tools.

Reorder PDF Pages

Rearrange PDF pages.

Roman Numeral Converter

Convert to and from Roman numerals.

Rotate PDF

Rotate PDF pages.

Split PDF

Split a PDF into separate pages.