One Click Answers

All tools A to Z

118 free tools, in alphabetical order. No signup.

A

  • AI Prompt GeneratorSay what you want an AI to help with and get a structured prompt you can paste into any assistant.AI Tools
  • Amortization CalculatorSee every payment of a loan split into principal and interest, the balance after each payment, yearly totals, the payoff date and what extra payments save, with a CSV download and a print view.Calculators
  • Aspect Ratio CalculatorEnter a size or ratio and get the missing dimension.Calculators

B

  • Baking Pan Size ConverterCompare the pan a recipe asks for with the one you have: area, capacity, how much deeper or shallower the batter will be, and how to scale.Cooking Tools
  • Base64 Encoder / DecoderTurn text into Base64, or decode Base64 back to text.Developer & Design Tools
  • Better Deal CalculatorCompare two to four products by cost per ounce, pound, liter or item. For discounts and shipping, use Which Purchase Is the Better Deal?Shopping Tools
  • Bulk Buy Waste CalculatorIs the bulk package still cheaper if you do not use all of it? See the cost per unit USED and how much you must use to break even.Shopping Tools
  • Business Days CalculatorCount the Monday to Friday days between two dates, or find the date that is some business days from a start date, skipping holidays you list.Everyday Tools

C

  • Can I Afford This Car?See what a car really costs each month, year and over five years: loan, taxes, fuel, insurance and upkeep, and how that compares with your own budget.Cars & Driving
  • Car Loan ComparisonCompare two car loan offers side by side, including rebate versus low APR.Calculators
  • Car Payment Reverse CalculatorStart from the monthly payment you want and see the highest car price that fits, with tax, fees, down payment and trade-in.Cars & Driving
  • Case ConverterChange text case instantly: upper, lower, title and more.Word Tools
  • Character CounterCount characters, with or without spaces, and check limits.Word Tools
  • Color PickerPick, convert and copy colors (HEX, RGB, HSL).Developer & Design Tools
  • Commute Cost CalculatorSee what your commute costs per day, week, month and year: gas, electric or public transit, plus parking and tolls.Careers & Work
  • Compare Two Grocery CartsEnter the same list at two stores and see which cart is cheaper, and which items make the difference.Shopping Tools
  • Compound Interest CalculatorSee how much savings grow with compound interest and regular deposits, with a year-by-year table, a growth chart and a comparison of compounding frequencies.Calculators
  • Credit Card Payoff ComparisonCompare the estimated cost of a balance transfer with your current card.Calculators
  • Cron Expression GeneratorWrite or read a schedule (cron) in plain English.Developer & Design Tools

D

  • Daily Calorie Needs CalculatorEstimate the calories you need each day from your age, height, weight, sex-based formula constant and activity level, with the working shown and activity levels compared.Healthy Living
  • Discount CalculatorFind the sale price and what you save, including a second or third discount on top.Shopping Tools
  • DKIM CheckerLook up a domain's DKIM key at a selector and see its type and size.Internet Tools
  • DMARC CheckerRead a DMARC record tag by tag in plain English.Internet Tools
  • DNS and Email CheckerCheck a domain's mail, SPF, DMARC and address records in plain English.Internet Tools
  • DNS LookupLook up a domain's address, mail, name server, text and certificate records.Internet Tools
  • DNS Resolver ComparisonAsk Cloudflare, Google and Quad9 the same DNS question and see whether they agree. Not a world map.Internet Tools
  • Domain Health CheckCheck a domain's website, secure connection, DNS and email records in one report, with what to fix first.Internet Tools
  • Drive vs Fly CalculatorCompare driving with flying for a trip: the total cost of each and the time each takes, side by side.Cars & Driving

E

  • Email Campaign CalculatorEnter your campaign numbers. Get delivery, bounce, open, click, click-to-open, conversion and unsubscribe rates, plus ROI.Email Tools
  • Email List CleanerPaste a list of addresses. Get it cleaned: duplicates removed, bad formats listed, role addresses and likely typos labelled.Email Tools
  • Explain It SimplyPaste something confusing and get it in plain words, at the level you choose.AI Tools

F

  • Financing vs Paying CashCompare paying cash with financing: the payment, the interest, the fees and the total against the cash price.Shopping Tools
  • Flooring CalculatorFind how many boxes of flooring to buy, with waste and leftover, from your room size.Calculators
  • Follow-Up Timing HelperSay what happened and how many days ago. See whether it is too soon to follow up, when a polite time is, and whether to send a thank-you note.Careers & Work
  • Free Shipping Threshold CalculatorShould you add something to reach free shipping? See how far away you are and whether spending more costs more overall.Shopping Tools

G

  • Gas vs EV Cost ComparisonCompare the cost of owning a gas car and an electric car.Calculators
  • GCD, LCM and Prime Factors CalculatorFind the GCD and LCM of two or more numbers, check whether a number is prime, list its prime factors and all its factors, or simplify a square root.Calculators
  • Grams to Cups ConverterChange grams, ounces or tablespoons to cups (or back) for a specific ingredient, because flour, sugar and butter weigh different amounts.Cooking Tools

H

  • Home Project CalculatorPick a project and find out how much material to buy and what it may cost.Calculators
  • How Long Until I Reach My Savings Goal?See how long a savings goal takes at your monthly amount, or what to save each month to reach it by a date, with growth at the return you choose.Calculators
  • How Much House Can I Afford?See the highest home price that fits common limits on housing cost and total debts for your income, down payment and mortgage rate, and how rates and down payments change it.Calculators
  • How Much Should I Save for Retirement?See how much you would need saved to retire at your age, what to save each month to get there, and where your current saving leads, in today's dollars.Calculators
  • How Much Sugar Did I Drink?Enter the sugar per serving and how much you drank to see the grams and teaspoons of sugar, and what it adds up to over time.Healthy Living
  • How Much Will My Road Trip Cost?Add up gas, lodging, food, tolls and parking for a road trip and see the total, the cost per person and per day, and how the cost changes with gas price and group size.Cars & Driving
  • HTTP Header CheckerSee the HTTP response headers a website sends, with a plain summary first and what each one means.Internet Tools

I

  • Image ConverterConvert pictures between PNG, JPG and WebP in your browser. Nothing is uploaded.Everyday Tools
  • Image to PDFTurn one or more pictures into a single PDF, one page each, in your browser. Nothing is uploaded.Everyday Tools
  • Inflation CalculatorFind what an amount from a past year is worth today from official U.S. consumer price data, or what money will cost at an inflation rate you choose, with a year-by-year breakdown.Calculators
  • Ingredient Substitute FinderOut of butter, eggs or buttermilk? Find what to use instead, with the right amount for what you are making.Cooking Tools
  • IP Address LookupLook up an IPv4 or IPv6 address: the organization it is registered to, its network block and country of registration.Internet Tools
  • Is an Electric Car Cheaper Than Gas?Compare owning a gas car and an electric car over the years you will keep it: price, fuel or electricity, upkeep, insurance, loan interest and when the pricier one pays itself back.Cars & Driving
  • Is Buying in Bulk Cheaper?Compare a regular package with a bulk package per ounce, pound or item and see whether bulk really costs less.Shopping Tools
  • Is Cheaper Gas Worth the Drive?Is it worth driving farther for cheaper gas? See the pump savings, the cost of the extra drive and the net result.Cars & Driving
  • Is This Job Offer a Scam?Paste a job offer or recruiter message to check it for known scam warning signs: fees, checks, gift cards, crypto, early ID requests and pressure. Then see what to verify.Careers & Work
  • Is This Person Real?Met someone online? Answer a few questions and see what is confirmed, what is not, and the warning signs. Verify the story, not just the profile.AI Tools
  • Is This Real?Check a link, article, post, photo or claim. Answer a few questions and see how much supports it, what conflicts and what you could not verify.AI Tools
  • Is This Really a Sale?Compare the advertised price now with the earlier price you know of, including shipping and fees, to see the real difference.Shopping Tools

J

  • Job Application TrackerKeep a list of the jobs you applied for, their status and when to follow up. Saved only in your browser, never sent to us.Careers & Work
  • Job Offer ComparisonPut two to four job offers side by side: gross pay, your own costs and the things money does not measure.Careers & Work
  • Job Search PlannerEnter the hours you have each week and get a plan: how long for finding openings, applying, reaching out, interview prep and follow-ups, with a week at a glance.Careers & Work
  • JSON Formatter and ValidatorFormat, minify and validate JSON, and see the exact line of a mistake.Developer & Design Tools

L

  • Lease vs Buy CalculatorCompare the cost of leasing with buying over the same months, from your own lease terms, loan terms and resale estimate.Cars & Driving
  • Loan Payment CalculatorFind the monthly payment, total interest and total cost of any loan, then see the full payment schedule, extra-payment savings and rate and term comparisons.Calculators

M

  • Meta Tag GeneratorMake the title, description and sharing tags for a page, ready to paste.Internet Tools
  • Metric & Imperial ConverterConvert km, miles, kg, pounds, liters, gallons, °C and °F.Calculators
  • Mortgage Loan ComparisonCompare two mortgage offers over the time you expect to keep the loan.Calculators
  • Mortgage Payment CalculatorEstimate your monthly mortgage payment with taxes, insurance, HOA and mortgage insurance, then see the amortization schedule, payoff date, extra-payment savings and 15 versus 30 years.Calculators

N

  • New vs Used Car CalculatorCompare a new car with a used one over the same years, from your own prices, loans, upkeep, insurance and resale estimates.Cars & Driving
  • Nutrition Label CalculatorEnter the numbers on a food label and the servings you ate to see what you actually ate. Also multiplies a label by any number of servings.Healthy Living

O

  • Overtime Pay CalculatorEnter your hourly rate and hours worked to see regular and overtime pay for the week, at time and a half or double time. A calculation, not a legal ruling.Careers & Work

P

  • Password GeneratorCreate a strong random password in your browser and copy it.Everyday Tools
  • Password Strength CheckerType a password and see an estimate of how strong it is and what weakens it. It never leaves your browser.Everyday Tools
  • Prompt ImproverPaste a prompt you use. Get a stronger one, what was improved, and details you could add.AI Tools

Q

  • QR Code GeneratorMake a QR code for a link, Wi-Fi, contact or message, and download it.Developer & Design Tools
  • Quadratic Equation SolverEnter a, b and c to solve a quadratic equation, with the discriminant, both roots, the vertex and the steps. A linear equation mode is included.Calculators

R

  • Random Number GeneratorGet random numbers in a range, with or without repeats.Everyday Tools
  • Random PickerPaste a list and pick a random winner or several.Everyday Tools
  • Recipe Cost CalculatorEnter each ingredient and what the package cost, and get the cost of the recipe and of each serving.Cooking Tools
  • Recipe Scaling CalculatorPaste your ingredients, say how many servings you have and want, and get every amount as a measure you can actually use.Cooking Tools
  • Redirect CheckerFollow a link step by step and see every redirect and status code.Internet Tools
  • Resume Bullet ImproverPaste resume bullets and get three versions of each: improved, concise and achievement-focused. Missing numbers are flagged, never invented.Careers & Work
  • Resume CheckerPaste your resume to check length, bullets, weak wording, missing numbers, filler phrases and repeated words. Plain-English fixes, no score, nothing uploaded.Careers & Work
  • Resume Job MatchPaste your resume and a job description. See what matches, what is not clearly in your resume, the job's keywords and how to word what you already have.Careers & Work
  • Resume Keyword MatcherPaste your resume and a job description. See which of the job's keywords your resume already uses and which are not clearly there. Nothing leaves your browser.Careers & Work
  • Robots.txt GeneratorMake a robots.txt file: allow, block or list paths, add your sitemap.Internet Tools
  • Running and Walking Pace CalculatorEnter a distance and a time to see your pace per mile and per kilometer and your average speed. Works for a walk or a run.Healthy Living

S

  • Salary to Hourly CalculatorTurn a yearly salary into an hourly rate, or an hourly rate into a yearly salary, with paid time off and overtime. Gross pay, before taxes.Careers & Work
  • Scientific CalculatorA scientific calculator with brackets, powers, roots, trigonometry in degrees or radians, logarithms, factorials, pi and e, a history list, and the steps it took.Calculators
  • Screen Time CalculatorSee what a daily amount of screen time adds up to in a week, a month and a year, in hours and full days.Healthy Living
  • Should I Change Jobs?Rate ten things, from pay to commute to your manager, and how much each matters to you. See which favor staying, which favor leaving and what to check next.Careers & Work
  • Should I Rent or Buy a House?Compare renting with buying a home over 5, 10 or more years, with the mortgage, taxes, upkeep, selling costs and the return on invested money, and see when buying catches up.Calculators
  • Shrinkflation CalculatorDid the package shrink while the price barely changed? See the old and new price per unit and the real percent increase.Shopping Tools
  • Social Preview CheckerSee an approximate preview of how a link to a page may look when shared.Internet Tools
  • SPF CheckerRead an SPF record in plain English and count its DNS lookups against the limit of 10.Internet Tools
  • Split Bill CalculatorSplit a bill equally, or by what each person ordered with tax and tip shared fairly, so everyone together pays exactly the total.Calculators
  • STAR Answer BuilderDescribe a real situation, what you did and what happened. Get a clear Situation, Task, Action, Result answer you can say out loud.Careers & Work
  • Subscription Cost CalculatorSee what a subscription really costs: per month, per year and over 1, 3, 5 and 10 years if the price stayed the same.Shopping Tools

T

  • Text CleanerFix messy copied text: extra spaces, blank lines and line breaks.Word Tools
  • Text CompareSee what changed between two pieces of text.Word Tools
  • Tip CalculatorCalculate the tip and split the bill evenly.Calculators
  • Total Cost of Car Ownership CalculatorAdd up the price, loan interest, fuel, insurance, maintenance, fees and resale value into the total cost of owning a car.Cars & Driving
  • Transferable Skills FinderEnter a job you have done and what you did. See the skills that commonly carry over and kinds of work where they are used.Careers & Work
  • Trip Cost EstimatorEstimate gas or charging, lodging and other costs for a trip.Calculators
  • Turkey Cooking CalculatorEnter the weight and whether it is stuffed, and get the roasting time range at 325°F, the safe temperature and, if you like, the latest time to start.Cooking Tools

U

W

  • Website Down CheckerCheck whether a website answers from our server, over https and http, and how quickly.Internet Tools
  • Website Health CheckCheck a website for common problems and see what to fix first.Internet Tools
  • What Does My Daily Walk Add Up To?See what a daily walk adds up to over a week, a month and a year: hours, days, and the distance.Healthy Living
  • When Can I Retire?Enter your age, savings, yearly saving and the spending you want in retirement to see the earliest age your savings could cover it, with a year-by-year projection.Calculators
  • Where Did My Day Go?Enter the hours for sleep, work, commuting, meals, screens and more to see where your 24 hours go, drawn to scale, with the week and year.Healthy Living
  • Which Deal Is Better?Put two offers side by side (percent off, dollar off, X for $Y, buy-some-get-some-free, or a price plus shipping) and see which costs less.Shopping Tools
  • Which Purchase Is the Better Deal?Compare two products or sizes by what each really costs per unit after discounts, coupons, shipping, tax and waste, and see the price at which the other would match.Shopping Tools
  • WHOIS LookupSee a domain's registrar, registration and expiry dates, name servers and status, from the registry.Internet Tools
  • Why Is My Email Going to Spam?Enter your sending domain and what is happening. See what can be checked (SPF, DKIM, DMARC, mail servers, your wording) and what cannot.Email Tools
  • Word CounterWords, characters, reading time and more.Word Tools
  • Word Frequency CounterSee which words you use most and how often.Word Tools
  • Words From LettersType your letters and see every word you can make, longest first.Word Tools

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