All 79 Yuitility tools
Every tool listed here is built and working. They all run inside your browser tab: files you open and numbers you type are processed on your own device and are never uploaded to a server.
Calculators & Maths
A number without its working is not much use for homework or for a spreadsheet you have to defend. These calculators show the intermediate steps.
- Standard CalculatorFast, clean basic calculator for everyday calculations with memory and history.
- Scientific CalculatorFull scientific calculator with trig, logarithms, powers, roots, DEG/RAD, and memory.
- Median CalculatorCalculate statistical median, sorted range, quartiles (Q1/Q3), and IQR.
- Mean CalculatorCalculate Arithmetic, Geometric, and Harmonic Means along with standard deviation.
- Mod (Modulo & Mode) CalculatorCalculate remainder (A mod B) or statistical mode frequency distribution.
Finance & Wealth
Every calculator here shows its working: the formula used, the intermediate values, and the assumptions baked into the result. Money maths is worth checking, so we make it checkable.
- EMI CalculatorCalculate monthly loan repayments, total interest, and view a detailed amortization schedule.
- SIP Investment CalculatorForecast your mutual fund SIP wealth growth with expected annual returns over time.
- Salary In-Hand Calculator (India)Calculate in-hand monthly salary from annual CTC with tax and EPF breakdowns.
- Retirement Age & Fund CalculatorPlan your retirement nest egg, required monthly savings, and inflation impact.
- Universal Loan Repayment CalculatorCalculate monthly payments, total interest, and total outlay for any loan.
- Educational Loan EMI CalculatorCalculate student loan EMIs with moratorium/grace period & Section 80E tax benefits.
- Personal Loan EMI CalculatorCalculate monthly personal loan EMIs, processing fees, and net borrowing costs.
- Bike & Two-Wheeler Loan EMI CalculatorCalculate bike loan monthly EMI with ex-showroom price, down payment, and RTO fees.
- Car Loan EMI CalculatorCalculate auto loan monthly payments with down payment, trade-in, and interest.
- Home Loan EMI CalculatorCalculate home loan EMIs, down payment %, and tax benefits under Sec 24 & 80C.
- Mortgage CalculatorCalculate total monthly mortgage payment including PITI, PMI, and HOA fees.
- Interest Calculator (Simple vs Compound)Compare simple vs compound interest growth across various compounding frequencies.
- FD Return CalculatorCalculate Fixed Deposit maturity returns, quarterly interest, and senior citizen boost.
- RD Return CalculatorCalculate Recurring Deposit maturity wealth with monthly contributions & compounding.
- Compound Interest CalculatorCalculate long-term compound growth with initial principal and monthly additions.
- Simple Interest CalculatorCalculate simple interest (I = P*R*T/100) with tenure in years, months, or days.
- PPF CalculatorCalculate Public Provident Fund maturity corpus, interest, and EEE tax savings.
- Gold Loan EMI CalculatorCalculate monthly EMI repayments and total interest for gold-backed loans.
- Business Loan EMI CalculatorCalculate monthly EMI and total borrowing costs for commercial and working capital loans.
- SWP CalculatorCalculate Systematic Withdrawal Plan monthly income payouts and remaining mutual fund corpus.
- EPF CalculatorCalculate Employee Provident Fund maturity wealth and accumulated retirement interest.
- NPS CalculatorCalculate National Pension System retirement wealth, lump sum withdrawal, and monthly annuity.
- Gratuity CalculatorCalculate lump sum gratuity benefit payable upon completing 5+ years of service.
- HRA Exemption CalculatorCalculate tax-exempt House Rent Allowance under Section 10(13A) of Income Tax Act.
- Income Tax CalculatorEstimate annual income tax liability, tax slabs, and net take-home salary.
- GST CalculatorCalculate inclusive and exclusive GST tax amounts with CGST & SGST breakdown.
- Credit Card EMI CalculatorCalculate credit card purchase EMI conversion costs, interest rates, and processing fees.
- Net Worth CalculatorCalculate total personal net worth by evaluating total assets minus total liabilities.
- Emergency Fund CalculatorCalculate 3 to 12 months of essential living expenses needed for financial security.
- ROI CalculatorCalculate Return on Investment percentage and net monetary gain from capital investments.
- CAGR CalculatorCalculate Compound Annual Growth Rate for multi-year investments.
- IRR CalculatorCalculate Internal Rate of Return for multi-year investment cash flows.
- Break-even Analysis CalculatorCalculate exact sales unit volume and revenue needed to cover fixed and variable costs.
- Profit Margin CalculatorCalculate gross profit margin percentage and cost price markup ratios.
- Commission CalculatorCalculate sales commission earnings payout and net seller proceeds.
- Mutual Fund Return CalculatorCalculate lump sum and SIP mutual fund growth and future maturity returns.
- Dividend Yield & Income CalculatorCalculate annual passive dividend payouts and dividend yield percentages.
- Stock Average CalculatorCalculate average buy price when purchasing additional stock shares.
Developer & Text Tools
Pasting a production payload into a random online formatter is a data-handling incident waiting to happen. These tools parse everything locally, so you can use them on data you are not allowed to upload.
- Password GeneratorGenerate highly secure random passwords with customizable parameters and strength analysis.
- QR Code GeneratorCreate custom QR codes for texts, URLs, WiFi networks, phone numbers, and emails.
- JSON Formatter & ValidatorPrettify, minify, validate, and explore complex JSON objects in an interactive node tree.
- Palette & Contrast CheckerGenerate color schemes and test text-to-background contrast using official WCAG guidelines.
- Favicon GeneratorGenerate standard web favicons and manifest files instantly.
- Open Graph (OG) GeneratorDesign beautiful Open Graph images for social media sharing.
- Fake Data GeneratorGenerate mock JSON, SQL, or CSV data for software testing.
PDF Tools
Most free PDF sites upload your document to their servers to process it. These tools do not: pdf-lib runs inside your tab, so a bank statement or signed contract never leaves the machine you opened it on.
- PDF MergerCombine multiple PDF files into a single document seamlessly.
- PDF SplitterExtract specific pages from a PDF or split it into individual files.
- Image to PDFConvert and compile multiple images into a single PDF document.
- PDF WatermarkerAdd a custom text watermark to all pages of your PDF.
- PDF Metadata EditorView and edit hidden PDF metadata like Author, Title, and Subject.
- PDF CompressorReduce the file size of PDF documents securely in your browser.
Image & Media
Image work happens on an HTML5 canvas in your own tab. That means no upload wait, no file-size cap imposed by someone else's server, and no copy of your photo sitting in a stranger's storage bucket.
- Image CompressorReduce image file size instantly in your browser while preserving optimal visual quality.
- AI Background RemoverRemove image backgrounds in your browser with a local AI model.
- Image ResizerResize images to specific pixel dimensions or percentages natively.
- Image Format ConverterConvert images between JPG, PNG, WEBP, and GIF formats instantly.
- Meme MakerCreate classic image macros with custom top and bottom text.
- Social Media ResizerInstantly crop images to exact sizes for Instagram, X, LinkedIn, etc.
- Photo Collage MakerCombine multiple photos into beautiful grid and story layouts.
Units & Conversion
Conversion errors are quiet errors — the number looks plausible and is wrong. These converters print the factor they applied so a mistake is visible.
Health & Lifestyle
These are statistical estimates from published formulas, not medical assessments. Each tool names the equation it uses and says where that equation is known to be unreliable, so you can judge the number rather than trust it blindly.
- Pregnancy Due Date CalculatorCalculate estimated due date, gestational age, trimester, and milestones.
- BMI CalculatorCalculate Body Mass Index (Metric & Imperial), healthy weight range, and Prime index.
- Life Expectancy & Longevity CalculatorEstimate statistical lifespan based on age, gender, habits, and lifestyle factors.
- BMR CalculatorCalculate baseline daily calories burned at rest using the Mifflin-St Jeor formula.
- Body Fat Percentage CalculatorEstimate body fat percentage, lean mass, and fat mass using US Navy formulas.
Everyday Utilities
These are the small interruptions — how many words is this, how old is that, what is inside this archive. They load fast, do one thing, and do not ask you to sign up first.
- Age Calculator & Birthday CountGet your exact age in years, months, days, down to the second, plus next birthday countdown.
- Word & Character CounterAnalyze writing structure, character counts, reading times, and keyword densities instantly.
- ZIP File ExtractorOpen ZIP archives online, preview contents, and extract files locally.
- Age Calculator in MonthsCalculate your exact age directly in months, weeks, days, hours, and seconds.
- Dog Age CalculatorConvert dog age to human years accurately based on breed weight and size.
- Zodiac Age & Planetary CalculatorDiscover your Western Zodiac, Chinese Zodiac, birthstone, and age on other planets.
- School Age Eligibility CalculatorDetermine grade level placement (Pre-K to 12th) based on birth date & cutoff rules.
- Zodiac Sun & Moon Sign CalculatorFind your Big Three astrological signs: Sun, Moon, and Rising/Ascendant.
- Discount & Sale Price CalculatorCalculate final sale price and monetary savings from percentage discounts.