Convenient collection of tools to help LUFTTOOLS web, and web production. | produced by SAVEE,INC.

It is a tool that can generate(Automatic generation) your favorite password.

It is a tool to generate a password to use for authentication with basic authentication.
It was used .htaccess describe a method of access restrictions.

It is an encryption tool for protecting the e-mail address that has been opened to the public on the WEB from the e-mail address automatic collection robot.

Byte count and number of line breaks is also count number of characters that can be check tool.

It is a tool that can be examined check-in host names with their own global IP address and its global IP address on the WEB.(Connection host name of the provider that primarily owns it)

It is a tool that can examine check your environment variables on the WEB.

This site provides image transparency tools and background transparency tools. By simply uploading an image, the color range of the specified image will be processed to make it transparent, and a transparent image (png image) will be created.

This is a tool to search the address/area of an IP address. You can check regional information from IP address, host, and domain.

This is a site that provides lottery/lottery tools. The site randomly draws winners from a range of numbers or from a list of multiple bullet points.

This site provides tools to convert MP4 videos to GIF. You can convert "mp4", "ogv (ogg)", and "webm" video files into GIF images and GIF animations. You can convert the image to GIF at any size and timing while viewing the preview.

This site provides tools for formatting SQL statements. Adjust "indentation", "reserved words", "columns", and "AND/OR position" to format SQL statements. You can format the SQL statement of your choice from multiple options.

This site provides a Online Calculator. This is a free tool that allows you to use the calculator for free on the web. This is a scientific calculator that can use advanced functions, and you can also copy and download calculation history.

This site provides a color picker and image color extraction tool. Simply upload the image and extract the color of the specified image using the "RGB", "HEX", "HSV", "CMYK", and "HSL" color codes.

This site provides Base64 encoding/Base64 decoding conversion tools. If you enter the string you want to convert to Base64, it will be automatically encoded to Base64. Also, if you enter Base64, it will be decoded automatically.

This site provides an image resizing tool. When you upload an image or photo that you want to resize, you can resize it to the specified size and extension (JPG, PNG, GIF), and then download the resized image.

This site provides team division and grouping tools. If you paste the list of members you want to divide into teams, teams will be automatically divided at random. It also automatically extracts the representative and secretary for each team.

This is an email address existence confirmation checker that provides email address existence confirmation. Does the email address still exist? Existence can be easily confirmed and checked.

This site provides a Whois search tool. You can search Whois information from domain, IP, and site URL.

Amidakuji Online is an online site that provides Amidakuji creation tools and Amidakuji creation apps. You can create Amida Lottery for free and create and execute Amida Lottery online.

nslookup tool/DNS server confirmation is a site that provides tools that allow you to check nslookup on a website.

Word Count English is a site that provides tools that allow you to count the number of words and characters in English. You can also display the number of words, number of characters in a word, number of lines, silent reading time, and reading time.

BMI Calculator is a tool that allows you to calculate your BMI. Just by entering your height and weight, you can calculate BMI, BMI prime, obesity degree, ponderal index, standard weight, difference from standard weight, etc.

Compound interest calculation simulation is a tool that allows you to calculate interest using compound interest. If you enter the principal amount, interest rate (annual rate/annual interest rate), number of years elapsed, and compounding cycle, how will the interest rate increase? Will the principal increase? can be calculated.

Video Conversion is a site that provides tools that can convert video files into different formats. Simply upload a video file and convert it to a different format online without the need for installation. It is free to use.

Image Conversion is a site that provides tools that can convert image files into different formats. Simply upload an image file and convert it to another format online without the need for installation. It is free to use.

Font Conversion is a site that provides tools that can convert font files into different formats. Simply upload a font file and convert it to another format online without the need for installation. It is free to use.

Text Conversion is a site that provides tools that can convert text files into different formats. Simply upload a text file and convert it to another format online without the need for installation. It is free to use.

Audio Conversion is a site that provides tools that can convert audio files into different formats. Simply upload a audio file and convert it to another format online without the need for installation. It is free to use.

Archive Conversion is a site that provides tools that can convert archive files into different formats. Simply upload a archive file and convert it to another format online without the need for installation. It is free to use.

Compressed File Decompression is a site that provides tools that can decompress compressed files. Just upload the compressed file and you can unzip it online, no installation required. It is free to use.

Half-width to Full-width Conversion is a site that provides tools that can convert text and strings containing half-width characters (hiragana, katakana, numbers) to full-width text and characters (hiragana, katakana, numbers).

Full-width to Half-width Conversion is a site that provides tools that can convert text and character strings containing full-width characters (hiragana, katakana, numbers) to half-width text and character strings (hiragana, katakana, numbers).

Lower case to Upper case conversion is a site that provides a tool that can convert text or strings containing lower case English letters (English, Roman letters) that you want to convert to upper case to upper case English letters (English, Roman letters).

Upper case to lower case conversion is a site that provides a tool that can convert sentences and strings containing upper case English letters (English, Roman letters) that you want to convert to lower case to lower case English letters (English, Roman letters).

Lower case to Upper case conversion is a site that provides a tool that can convert text or strings containing lower case English letters (English, Roman letters) that you want to convert to upper case to upper case English letters (English, Roman letters).

Upper case to lower case conversion is a site that provides a tool that can convert sentences and strings containing upper case English letters (English, Roman letters) that you want to convert to lower case to lower case English letters (English, Roman letters).

Text to Binary is a site that provides tools that can convert plain text characters, sentences, and strings into binary characters, sentences, and strings.

Binary to Text Conversion is a site that provides tools that can convert binary characters, sentences, and character strings to plain text.

Text to Hexadecimal (HEX) Conversion is a site that provides tools that can convert characters, sentences, and strings of plain text into hexadecimal (HEX) characters, sentences, and strings.

Hexadecimal (HEX) to Text Conversion is a site that provides tools that can convert hexadecimal (HEX) characters, sentences, and strings of characters to plain text.

Vector Conversion is a site that provides tools that can convert vector files into different formats. Simply upload a vector file and convert it to another format online without the need for installation. It is free to use.

Character Code Conversion is a site that provides tools that can convert (decode/encode) text characters to another character code.

Internet Speed ​​Test is a site that provides tools to measure the communication speed of the Internet line you are using.

Image Compression is an online site that provides free tools to compress image files (PNG, JPG, WEBP).

Image Trimming is an online site that provides free tools that allow you to trim image files (PNG, JPG, GIF, WEBP, BMP).

Web Page Image Download is an online site that provides a free tool that allows you to list, extract, and download images used on a website by simply entering the website's URL.

Consumption tax calculation is a free tool that allows you to easily calculate consumption tax with or without tax, with or without tax.

Basal Metabolism Rate Calculation is a free tool that allows you to easily calculate your basal metabolism, active metabolism, and estimated energy requirement.

Body Fat Calculator is a site that provides free tools that allow you to easily calculate your body fat percentage, fat mass, lean body mass, BMI, basal metabolic rate, and resting metabolic rate.

Gasoline Cost Calculation is a free tool that allows you to easily calculate your gasoline cost from gasoline price, mileage, and fuel efficiency.

Tsubo Sqm Jo Conversion is a free tool that allows you to easily calculate the indices of size, area, and width, "tsubo (tsubo)", "square meter (m2)", and "jo (jo)", and convert them into each other's values.

Days Calculation is a free tool that allows you to easily calculate the number of days, weeks, months, and years for a certain period (between the start and end dates).

Age Calculation is a free tool that allows you to easily calculate your current age (how many years old and how old is the age according to the Japanese reckoning system) by entering your date of birth.

Seireki to Wareki conversion is a site that provides a calculation tool that can convert the date (year/month/day) of Seireki to the date (year/month/day) of Wareki.

What year is it now? is a tool that lets you know at a glance what year it is in the Gregorian calendar, what year it is in the Japanese calendar (Reiwa), and what is the current zodiac sign.

Academic Background Calculation is a free tool that allows you to easily calculate the academic background.

Standard deviation calculation is a site that provides a free tool that allows you to easily calculate and find your standard deviation.

Standard deviation calculation is a site that provides a free tool that allows you to easily calculate standard deviation by inputting a data set.

WEB Roulette is a free tool that allows you to play roulette on a website by entering the roulette choices.

The DIFF Tool (Text Difference Comparison) is a site that provides a free tool that compares the difference between two texts and displays the difference.

PDF Converter is a tool that allows you to convert PDF files to other files and other files to PDF files.

PDF Merge is a site that provides a free tool to combine two or more PDF files into one PDF file.

The Calorie Consumption Calculator is a free tool that allows you to easily calculate daily calorie consumption.

a free tool that allows you to easily calculate the amount of protein, fat, and carbohydrate that you should ingest per day based on your PFC balance.

The Creatinine Clearance Calculation is a tool that simplifies the calculation of "Creatinine Clearance" a numerical value used to evaluate kidney function.

Electricity Bill Calculator is a free tool that allows you to easily calculate your electricity bill based on power consumption, daily usage time, number of days of usage, and electricity cost per kWh.

Power consumption calculation is a free tool that allows you to easily calculate power consumption (W) by inputting voltage (V) and current (A).

Due date calculation is a site that provides a free tool that allows you to easily calculate and simulate the due date from the start date of your last menstrual period or the date of sexual intercourse.

Mental Leap Calculator is a site that provides a free tool that allows you to easily calculate the mental leap from the expected date of birth.

Log Calculation is a site that provides free tools that allow you to easily perform log and logarithm calculations.

Percent Calculator is a site that provides free tools that allow you to easily calculate percentages.

Probability Calculation is a site that provides free tools that allow you to easily calculate probability.

Ratio Calculator is a site that provides free tools that allow you to easily calculate ratios.

The Kaup index calculation tool is a tool that allows you to easily calculate the Kaup index by simply entering your height, weight, and age.

Walking calorie consumption calculation is a tool that allows you to easily calculate the number of calories burned while walking by simply entering your walking speed, walking time, and weight.

Time Calculator is a site that provides a free tool that allows you to easily calculate elapsed time by simply entering the "start time" and "end time".

Combination Calculation is a site that provides free tools that allow you to easily calculate combinations.

Permutation calculation is a site that provides free tools that allow you to easily calculate permutations.

Root Calculation is a site that provides free tools that allow you to easily calculate roots and square roots.

GPA Calculation is a free tool that allows you to easily calculate GPA, which is the evaluation standard for university grades.

Random Number Maker is a random number generation tool that allows you to easily generate random numbers by simply inputting the number of numbers to be generated, the minimum value, and the maximum value.

Prime factorization is a tool that allows you to easily factorize integers into prime factors by simply entering the integer you want to factorize.

Baseball OPS Calculation is a free tool that allows you to easily calculate OPS, an index used to comprehensively evaluate batting performance in baseball.

Pythagorean Theorem Calculation is a site that provides a free tool that allows you to easily calculate the "length of the remaining side", "angle", and "area" in Pythagorean Theorem.

Trigonometric Function Calculator is a site that provides a free tool that allows you to calculate the trigonometric functions "sinθ: sine", "cosθ: cosine", "tanθ: tangent", "cotθ: tangent", "secθ: secant", and "cscθ: cosecant" simply by entering the "angle".

Angle Calculation is a site that provides a free tool that allows you to calculate the "angle" of a right triangle just by entering the "length of the base" and "height".

Biorhythm Calculation is a free tool that allows you to calculate "today's biorhythm" simply by entering your "date of birth".

Area of ​​a Triangle (Heron's Formula) is a free tool that allows you to calculate the area of ​​a triangle whose three side lengths are known.

Running Calories Burned Calculator is a tool that allows you to easily calculate the number of calories burned while running by simply entering your running speed, running time, and weight.

The lean body mass calculation tool is a tool that allows you to easily calculate your "lean body mass" by simply entering your "weight" and "body fat percentage".

The muscle mass calculation tool is a tool that allows you to easily calculate your muscle mass by simply entering your body weight and body fat percentage.

The FFMI calculation tool is a tool that allows you to easily calculate "FFMI (Fat-Free Mass Index)" by simply entering "height", "weight", and "body fat percentage".

Discomfort Index is a tool that allows you to easily calculate the "Discomfort Index (DI)" by simply inputting "Temperature (℃)" and "Humidity (%)".

The inverse matrix calculation tool is a tool that allows you to easily find the "inverse matrix" of a specified matrix. With this tool, you can simply enter a square matrix and the calculation result of the inverse matrix will be automatically displayed.

The transposed matrix calculation tool is a tool that allows you to easily find the "transposed matrix" of a specified matrix.

Matrix Multiplication is a tool that allows you to easily find the "matrix multiplication (matrix product)" of a specified matrix.

Greatest common factor is a tool that allows you to easily find the "greatest common factor" and "common factor" of multiple specified values.

Least Common Multiple is a tool that allows you to easily find the "Least Common Multiple" and "Common Factor" of multiple specified values.

Weight Unit is a free tool that allows you to easily calculate "weight unit conversion" by simply entering "weight value" and "weight unit".

Byte Conversion is a tool that can easily convert "byte (B)", a unit of digital information volume, to "kilobyte (KB)" and "megabyte (MB)".

Weight Unit is a free tool that allows you to easily calculate "weight unit conversion" by simply entering "weight value" and "weight unit".

Sleep Disorder/Insomnia Symptom Check is a self-check tool that allows you to easily self-diagnose your "sleep disorder/insomnia risk" based on your sleep status.

ADHD Screening Tool is a self-check tool that allows you to easily self-screening ADHD based on your daily life and social functioning.

The Depression Check Diagnostic Test is a self-check tool that allows you to self-diagnose depression just by answering simple questions.

HSP Screening Tool is a self-check tool that allows you to self-diagnose your HSP by simply answering some simple questions.

ASD Screening Tool is a self-check tool that allows you to self-diagnose ASD by answering simple questions.

Psychopath Screening Tool is a self-check tool that allows you to self-diagnose "psychopathy" by simply answering a few simple questions.

Instagram username automatic generation is a tool that will determine your username just by entering your favorite word.

How to find the volume of a cylinder is a free tool that allows you to easily calculate the volume of a cylinder.

Child's Final Height Prediction is a free tool that allows you to easily predict your child's final height by simply entering the father's height, mother's height, and child's gender.

How to calculate the volume of a sphere (automatic calculation) is a free tool that allows you to easily calculate the volume of a sphere.

Blank Copy and Paste is a tool that allows you to copy and paste special blank spaces that can be used on Instagram, X (Twitter), LINE, TikTok, and Facebook with one click.

Special Character Copy and Paste Emoji Emoji Mix is ​​a tool that displays a list of "special characters", "emoji", "emoji mix", and "emoji combinations" and allows you to easily copy and paste them.

Copy Paste Special Character Alphabet is a tool that converts the English alphabet (uppercase and lowercase) you enter into usable special alphabet characters, displays a list, and allows you to easily copy and paste them.

Number Font Copy and Paste is a tool that allows you to easily copy and paste numbers you have entered by converting them into available fonts and displaying a list.

Copy Paste English Font is a tool that allows you to easily copy and paste the English you typed in by converting it into available fonts and displaying a list.

Decorative Character Copypaste is a tool that converts the English you type into usable decorative characters, displays a list, and allows you to easily copy and paste them.

Vertical Line Copy and Paste is a tool that displays a list of vertical lines and allows you to easily copy and paste them.

Cutting line copy and paste is a tool that displays a list of cutting lines and allows you to easily copy and paste them.

Arrow Copy and Paste is a tool that displays a list of arrows and allows you to easily copy and paste them.

QR code reading is a free tool that supports reading QR codes from image files and reading QR codes from a PC (personal computer).

QR Code Creation is a tool that can generate QR codes for free. You can easily generate a QR code by simply entering the character, URL, or text you want to display in the QR code.

Daily Water Intake Calculator helps estimate your ideal daily water intake and how much you should drink directly, based on your weight, age, activity level, season, and purpose.

Daily Protein Intake Calculator is a tool that allows you to easily calculate the "recommended daily protein amount" and "insufficient protein amount".

How many days left is a tool that allows you to easily calculate how many days are left until the "target date".

How many days ago calculation is a tool that allows you to easily calculate how many days ago the "target date" is. It can automatically calculate the date how many days ago today.

The daily calorie intake diet calculator is a tool that allows you to easily calculate the "daily calorie intake guideline for a successful diet".

Stopwatch WEB Timer is a highly functional free stopwatch tool.

The high-precision digital clock is a digital clock that automatically synchronizes with an Internet time server and displays "accurate time without deviation" on your computer or smartphone. You can also set a target time and count down.

Decibel measurement site is a free browser-based tool that can measure decibels (dB) in real time.

Metronome is a free online tool that allows you to use a metronome on a site.

Mosaic Processing is a free online tool that can be used to mosaic uploaded images and photos on the site.

Bingo roulette is a free tool that automatically reads out bingo numbers on a website.

Fraction calculator is a free tool that makes it easy to add, subtract, multiply, and divide fractions. It also has functions such as "multiple term calculation", "calculation history copy", and "decimal notation".

Mindfulness Meditation Timer is a timer tool for mindfulness meditation.

Pomodoro Timer is a timer tool suitable for the "Pomodoro method," a time management technique that improves concentration and productivity.

The Alcohol Withdrawal Time Calculator is a free tool that calculates the time it takes for alcohol to break down based on the amount of alcohol consumed, weight, and time when drinking ended.

Batch Image Editing (Resize, Compress, Crop) is a free tool that allows you to "resize (change size)", "crop", "compress", and "rename" up to 30 images at once.

Swimming calorie calculation is a tool that allows you to easily calculate the number of calories burned by swimming by simply entering the "type of swimming", "swimming time", and "weight".

Jump rope calorie burn calculation is a tool that allows you to easily calculate the number of calories burned by jumping rope by simply entering the "jump rope exercise time", "number of times jumped", "type of jump rope", "intensity" and "weight".

Body Surface Area (BSA) Calculation is a tool that allows you to easily calculate your body surface area (BSA) by simply entering your height and weight.

The Mountain Climbing Calories Calculator is a tool that easily calculates the number of calories burned while skipping rope by simply entering your base mountain climbing intensity, elevation difference (m), ascent time, descent time, and descent intensity.

The Strength Training Calorie Calculator is a tool that lets you easily calculate the number of calories burned during strength training by simply entering your weight, strength training routine, and rest time.

Power Calculation is a calculation tool that allows you to easily calculate powers by simply entering the "base (a)" and "exponent (b).

Power Calculation is a calculation tool that allows you to easily calculate powers by simply entering the "base (a)" and "exponent (b)." It also supports negative powers and decimal powers.

The concentration calculation tool allows you to easily calculate the "mass of solution after mixing," "solute mass after mixing," and "concentration after mixing" by simply entering the concentrations of "Solution A" and "Solution B." Selecting the "type of substance" also supports "molar concentration" calculation.

The "Walking in Water Calorie Calculator" tool allows you to easily calculate the "calories burned" by walking in water by simply entering the "exercise duration" or "exercise intensity.