Tool directory
All tools
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Count Words and Characters
Analyze words, visible characters, lines, paragraphs, and frequently used terms instantly in your browser.
Open toolGPA/GPAX Calculator
Calculate a term GPA from courses, credits, and grades, then estimate a new cumulative GPAX from prior credits and GPAX while reviewing each course's quality points.
Open toolSpecial Characters
Convert Latin letters and digits into bold, italic, sans, monospace, circled, fullwidth, and framed Unicode variants, then copy them for use elsewhere.
Open toolAge Calculator
Calculate age as of today's date in Thailand, including calendar years, months and days, elapsed time units, birth weekday, and the next birthday.
Open toolRelationship Duration Calculator
Enter a relationship start date to see the calendar duration, elapsed time totals, and the next 20 Valentine dates.
Open toolPercentage Calculator
Find a percentage of a number, one group's share of two groups, a value after an increase or decrease, and simple annual interest with the formula and calculation base made explicit.
Open toolFancy Text for Instagram
Enter a name or phrase and choose from 29 Unicode variants spanning mathematical alphabets, circled and fullwidth text, combining marks, and decorative frames.
Open toolBase Converter
Convert integers exactly between bases 2–36, including binary, octal, decimal, and hexadecimal, with clear digit validation.
Open toolHeight and Length Converter
Convert among mm, cm, m, km, inches, feet, yards, and miles, see every unit in one table, and read human height conveniently as feet plus inches.
Open toolWrong Keyboard Layout Converter
Map text between US QWERTY and Thai Kedmanee key positions, including Shift, without translation, spell checking, storage, or server submission.
Open toolDate Difference
Calculate the interval between two dates in calendar years, months and days, elapsed full days, weeks, and converted time units, with CE and BE support.
Open toolSpecial Symbols
Search 238 hearts, stars, flowers, arrows, shapes, music marks, frames, and decorative strings, then collect up to 20 choices for local export.
Open toolWeight and Mass Converter
Convert among mg, g, kg, metric tonnes, oz, lb, and stone with integer-based arithmetic and see every equivalent in one table.
Open toolExpense Splitter and Bill Sharing
Calculate what each person paid, owes, and should transfer by choosing the participants separately for every expense.
Open toolCredit-Term Interest Calculator
Calculate the two distinct questions described by the legacy page: simple interest on a fixed balance and annualized cost of declining a cash discount.
Open toolCalculator
Calculate basic arithmetic step by step with up to 12 displayed decimal places, keyboard controls, and temporary tab-only history without server storage.
Open toolSubtitle Cleaner
Choose SRT, VTT, or TXT files or paste subtitle text, then control removal of timestamps, cue numbers, the WEBVTT header, bracketed text, blank lines, and excess spacing.
Open toolText Case and Whitespace Converter
Apply Unicode case conversion or remove every whitespace character, preview the output before copying, and keep processing inside your browser.
Open toolThai Cash Counter
Enter the quantity of each Thai banknote and coin to calculate the total value, item count, and full denomination breakdown.
Open toolVAT and Withholding Tax Calculator
Enter an amount, identify whether VAT is included, and set the VAT rate, withholding rate, and withholding base to see a complete payment breakdown.
Open toolRandom Team Generator
Paste names, choose a team count, and distribute everyone so team sizes differ by no more than one person.
Open toolFood Calorie Log
Enter energy per serving from a label or a trusted database, then total breakfast, lunch, dinner, and snacks without sending food data off your device.
Open toolQR Code Generator
Create a UTF-8 QR Code Model 2 on your device, choose error correction, download PNG/SVG, and review the exact payload before sharing.
Open toolInstallment Payment Calculator
Enter a purchase price, down payment, annual rate and number of months, then choose flat-rate or reducing-balance interest to see the installment, total interest, total repayment and estimated schedule.
Open toolBMI, BMR and TDEE Calculator
Calculate BMI from height and weight, estimate resting energy with the Mifflin–St Jeor equation, and multiply by an activity factor for a TDEE scenario—not a diagnosis or calorie prescription.
Open toolRandom Number and Name Draw
Select integers from an inclusive range or draw multiple name entries without replacement using Web Crypto and rejection sampling, with results kept only in the current tab.
Open toolRandom Name Wheel
Use this free online spin wheel to pick names, choose winners, or make a quick decision. Add 2–100 entries, select 1–10 winners, import CSV, and export results without sending names to a server.
Open toolCountdown Timer
Set 1 second to 23 hours 59 minutes 59 seconds, start, pause, resume, and receive a visible or optional audible signal without sending data to a server.
Open toolPeriod and Fertile Window Estimate
Estimate the next period start, ovulation date, and possible fertile window from the first day of the last period and average cycle length without labeling any other day as guaranteed safe.
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