Tool directory
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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 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 toolRelationship Duration Calculator
Enter a relationship start date to see calendar duration, elapsed totals, the next 20 Valentine dates, and a private PNG keepsake card.
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 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 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 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 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 toolBase Converter
Convert integers exactly between bases 2–36, including binary, octal, decimal, and hexadecimal, with clear digit validation.
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 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 toolOvertime and holiday-pay calculator
Estimate workday overtime, holiday work, and holiday overtime from the wage basis and actual duration, with the hourly rate, multiplier, and substituted method shown.
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 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 toolWorking-days and business-days calculator
Count workdays with eligible endpoints included, or add and subtract workdays to find a due date, using selectable weekly non-working days and the holiday list that actually applies.
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 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 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 toolRandom Team Generator
Paste names, choose a team count, and distribute everyone so team sizes differ by no more than one person.
Open toolThailand severance-pay calculator
Calculate inclusive continuous service, match the section 118 wage-day tier, and estimate statutory severance from the last monthly or daily wage entered.
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 toolCompound Interest Calculator
Estimate how a starting balance and end-of-month contributions may grow, including a value in today's money, without sending inputs from your browser.
Open toolDCA and Average Cost Calculator
Calculate directly from prices you enter when equal cash purchases acquire a different number of shares or fund units each period.
Open toolDividend and Dividend Yield Calculator
Estimate gross dividend, net cash, and yield against a share price with an editable withholding assumption.
Open toolSavings Goal Calculator
Estimate how much to save each month to reach a target date under a constant return assumption you control.
Open toolCAGR and XIRR Calculator
Measure a lump-sum annualized return with CAGR and use XIRR when contributions or withdrawals occur on irregular dates.
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 toolInflation and Purchasing Power Calculator
Compare a future equivalent price with the purchasing power of unchanged cash under a constant inflation assumption.
Open toolDebt Prepayment Calculator
Use remaining principal, rate, and term to estimate how an extra monthly payment can reduce interest and the number of installments.
Open toolRetirement Savings Calculator
Estimate the amount required at retirement and a monthly saving level, adjusting spending for inflation and separating pre- and post-retirement return assumptions.
Open toolThai Personal Income Tax Calculator for Tax Year 2568
Estimate tax for employment income with the 50% expense capped at THB 100,000, THB 60,000 personal allowance, and a user-verified total of other allowances.
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.
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 toolProtein and Macronutrient Calculator
See the protein RDA from body weight and convert adult protein, carbohydrate and fat AMDR percentages into daily gram ranges—clearly labelled as healthy-adult references, not individualized nutrition targets.
Open toolSleep and Wake-Time Calculator
Count backward from a wake time to plan bedtime or forward from an in-bed time to plan waking, with CDC adult sleep-duration references and no claim that sleep always follows a fixed 90-minute cycle.
Open toolPregnancy Due Date and Gestational Age Calculator
Estimate a due date with the conventional LMP + 280-day method and count complete weeks plus remaining days on a selected date, with a visible warning that ultrasound and clinical assessment may confirm or revise pregnancy dating.
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