EkaTantra Utilities
Everyday Tools
The little calculators everyone reaches for — fast, private, and free. Everything runs on your device, nothing is ever sent anywhere.
FinanceCalculator
A clean scientific calculator — trig, powers, roots, π and history.
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FinanceLoan EMI
Monthly instalment, total interest, and a year-by-year payoff schedule.
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FinanceSIP & Investment
Project SIP or lumpsum growth, gains and inflation-adjusted value.
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FinanceGST Calculator
Add or extract GST at any rate, with the CGST/SGST split.
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FinancePercentage
X% of Y, X is what % of Y, and percentage change — answered live.
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EverydayBill Splitter
Split any bill with tip across friends, to the rupee.
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ConvertUnit Converter
Length, weight, volume, area, speed, data and temperature.
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ConvertNumber Base
Convert between binary, octal, decimal and hex — edit any field.
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ConvertRoman Numerals
Convert numbers to Roman numerals and back, with validation.
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ConvertEncode / Decode
Base64, URL and HTML entity encode or decode — UTF-8 safe.
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ConvertColour Picker
Pick a colour and copy it as HEX, RGB or HSL — with shade steps.
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ConvertText Tools
Word/character counts, case conversion, slugs and more — instantly.
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HealthBMI
Body-mass index with your healthy weight range.
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HealthAge Calculator
Exact age in years, months and days — plus your next birthday.
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TimeDate Calculator
Days between two dates, or add/subtract days — with weekday and ISO week.
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TimeStopwatch & Timer
Lap timing and countdowns with an alarm — for workouts, cooking, anything.
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TimePomodoro
Focus in 25-minute sprints with breaks — the classic productivity timer.
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ProductivityTo-Do
Tasks with priorities and due dates, sorted smartly — private and offline.
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ProductivityNotes
Quick colour-coded notes with search — private to this device, offline.
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ProductivityHabit Tracker
Build streaks — mark each day, watch the flame grow, keep the chain alive.
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EverydayPassword Generator
Strong, random passwords made on your device — never sent anywhere.
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EverydayDice & Random
Roll dice, flip a coin, pick a name, or get a random number — fairly.
OpenTaking a break? Play chess, sudoku & more.