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New✅ ValidationCosta Rica ID number validatorEnter 1-0234-0567 and you learn it is a valid personal cédula, stored as 102340567 and shown in its usual hyphenated…NNitroRuns in your browserFreeOpen →New💰 Finance & moneyCosta Rica severance calculatorThirty months on an average ₡600,000, then a dismissal without just cause: the settlement comes to ₡2,040,000 in notice…NNitroRuns in your browserFreeOpen →New💰 Finance & moneyCosta Rica employer payroll charges 2026A ₡1,000,000 monthly salary costs a Costa Rican employer ₡1,268,300 in 2026, because ₡268,300 in social charges, the…NNitroRuns in your browserFreeOpen →New💰 Finance & moneyCosta Rica net salary calculator 2026On ₡1,000,000 gross a month, an employee in Costa Rica takes home ₡883,500 in 2026: ₡108,300 goes to the CCSS and ₡8,200…NNitroRuns in your browserFreeOpen →New💰 Finance & moneyCosta Rica aguinaldo calculatorYour aguinaldo is one twelfth of everything earned from 1 December to 30 November: twelve months at ₡600,000 come to an…NNitroRuns in your browserFreeOpen →New➗ MathNull space calculatorThe rows (1, 2, 3) and (2, 4, 6) have rank 1, so their null space needs two basis vectors: (−2, 1, 0) and (−3, 0, 1).SsamuraiRuns in your browserFreeOpen →New➗ MathLogical NOR calculatorFalse NOR false is true, and every other pair gives false. Enter two true-or-false values and get the NOR result with…PPavilionRuns in your browserFreeOpen →New➗ MathMultiply complex numbersMultiply two complex numbers in rectangular form: (1 + 2i)(3 + 4i) gives −5 + 10i, using (ac − bd) + (ad + bc)i with i²…AabuelaRuns in your browserFreeOpen →New➗ MathMöbius strip calculatorGive the band width and the centreline radius and get the Möbius strip's area and its single edge: a band 1 wide on a…SsamuraiRuns in your browserFreeOpen →New➗ MathLong multiplication calculatorMultiply two whole numbers the schoolbook way and see every partial product: 123 times 45 gives the rows 615 and 4920…AabuelaRuns in your browserFreeOpen →New➗ MathMean calculatorAdd up a list and divide by how many numbers it holds: 2, 4, 6, 8 and 10 sum to 30, so the mean is 6.PPavilionRuns in your browserFreeOpen →New➗ MathLog2 calculatorEnter a positive number and get its base-2 logarithm, the power of two that produces it: log2 of 8 is 3, of one half is…SsamuraiRuns in your browserFreeOpen →

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#1📈 SEOValidate a redirect mapCatch redirect mistakes while the map is still a file: in /a → /b → /c → /d, the route from /a takes three hops and is…GGalaRuns in your browserFreeOpen →#2📄 Documents & PDFConvert HTML to PDFTurn an invoice template or a rendered report written in HTML into a PDF that looks exactly like the page a modern…NNitroAPI$0.040Open →#3📄 Documents & PDFJPG to PDFThree photos of a damaged part, or several receipts snapped on a phone, become one PDF with one page per image, in the…NNitroAPI$0.002Open →#4📄 Documents & PDFURL to PDFKeep a competitor's advertised claims, a government notice or a partner's terms exactly as they appeared on a given…NNitroAPI$0.040Open →#5🌐 TranslationSort a list alphabeticallyWith Spanish rules, “nandu” comes before “ñandú” and “Ñoño”, and “Ángel” sits right after “angel” instead of at the end…GGalaRuns in your browserFreeOpen →#6✅ ValidationValidate a phone numberType +34 600 11 12 22 and you get +34600111222, confirmed as a valid Spanish number of 11 digits, ready for your contact…NNitroRuns in your browserFreeOpen →#7✅ ValidationColor contrast checkerKnow whether text will stay readable for everyone, whatever your own screen shows: dark gray #111827 on white has a…GGalaRuns in your browserFreeOpen →#8🖼️ ImagesAdd a logo to a QR codeAdd your logo to the center of a QR code without breaking it: the error-correction level, the logo's size and the blank…NNitroRuns in your browserFreeOpen →#9🕸️ Web Scraping & MonitoringRemove tracking parameters from a URLTwo UTM tags gone, the id parameter kept and nothing else in the link touched: paste a link to strip known tracking…GGalaRuns in your browserFreeOpen →#10📄 Documents & PDFSplit a PDFCut a three-page PDF every two pages and you get two files: pages 1 and 2, then page 3.NNitroAPI$0.002Open →#11📄 Documents & PDFExtract text from a PDFGet the words a native PDF already contains as plain text in reading order, without fonts, columns or coordinates…NNitroAPI$0.002Open →#12✍️ Text & AISummarize a textNobody on your team has to skim a 4,000-word document again to find the three sentences that matter: paste it in and get…NNitroAPI$0.003Open →

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💰 Finance & moneyFree
Expected utility calculator
Two equally likely outcomes, each with a probability of 1/2 and with utilities of 10 and 2, give an expected utility of 6: each probability times its utility…
PPavilion
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💰 Finance & moneyFree
Expense ratio calculator
Operating expenses of 75,000 on average assets of 10,000,000 give an expense ratio of 0.0075, or 0.75% a year.
Aabuela
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💰 Finance & moneyFree
FFO calculator
Net income of 1,000,000 plus 250,000 of depreciation and 50,000 of amortization, minus 80,000 of gains on property sales, gives funds from operations of…
PPavilion
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💰 Finance & moneyFree
FHA loan calculator
A 300,000 FHA loan at 6.5% over 30 years costs 2,066.89 a month: 1,929.39 of principal and interest plus 137.5 of mortgage insurance, with the 1.75% upfront…
Aabuela
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💰 Finance & moneyFree
Fibonacci retracement calculator
For a swing from 0 to 100, the 61.8% retracement sits at 38.2 on a pullback and at 61.8 on a bounce.
PPavilion
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💰 Finance & moneyFree
FICA tax calculator
On 60,000 of wages, a single filer owes 4,590 in FICA: 3,720 of Social Security at 6.2% and 870 of Medicare at 1.45%.
Aabuela
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FIFO inventory calculator
Buy 100 units at 10 and 50 at 12, sell 120, and FIFO gives a cost of goods sold of 1,240 and ending inventory of 360: the 30 newest units at 12.
PPavilion
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💰 Finance & moneyFree
Finance charge calculator
Borrow 20,000, repay 23,947.2 in total, and the finance charge is 3,947.2: every amount you pay above what was advanced.
Aabuela
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💰 Finance & moneyFree
Financial leverage ratio calculator
Total debt of 200,000 against 100,000 of equity gives a financial leverage ratio of 2: two of debt for every one of equity, read as a multiple, not a percent.
PPavilion
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💰 Finance & moneyFree
FIRE calculator
Spending 40,000 a year at a 4% withdrawal rate needs a portfolio of 1,000,000. With 100,000 saved, 30,000 added each year and a 7% return, you reach it in…
Aabuela
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💰 Finance & moneyFree
Fisher effect calculator
An 8% nominal rate, entered as 0.08, against 3% inflation, entered as 0.03, leaves an exact real rate of 0.04854368932, about 4.85%, not the 5% that simple…
PPavilion
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💰 Finance & moneyFree
Fisher equation calculator
With a 5% nominal rate and 3% expected inflation, the real interest rate is 1.94174757%, while the quick subtraction says 2%.
Aabuela
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💰 Finance & moneyFree
Fixed asset turnover calculator
Net sales of 500,000 on 250,000 of average net fixed assets give a fixed asset turnover of 2: two of sales for every one invested in plant, property and…
PPavilion
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💰 Finance & moneyFree
Fixed deposit calculator
Deposit 100,000 at 7.5% for 5 years, compounded quarterly, and it matures at 144,994.8, with 44,994.8 of interest.
Aabuela
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💰 Finance & moneyFree
Florida overtime calculator
At 20 an hour, a 50-hour week in Florida has 10 overtime hours paid at 30, which is 300 of overtime pay on top of 800 for the first 40 hours.
PPavilion
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💰 Finance & moneyFree
Florida sales tax calculator
A 100 purchase in a county with a 1% surtax pays 7 in tax at the combined 7% rate, for a total of 107.
Aabuela
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💰 Finance & moneyFree
Forward premium calculator
A spot rate of 1.20 and a 90-day forward of 1.23 differ by 0.025, which annualizes to a forward premium of 0.10, or 10% a year on a 360-day basis.
PPavilion
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💰 Finance & moneyFree
Forward rate calculator
If the 1-year spot rate is 4% and the 2-year spot is 5%, the curve already locks in 6.00961538% for the one-year period starting a year from now.
Aabuela
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💰 Finance & moneyFree
Free cash flow calculator
With 500,000 of operating cash flow and 120,000 of capital expenditures, FCF is 380,000: the cash left to pay down debt, buy back shares or fund growth without…
PPavilion
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💰 Finance & moneyFree
Free cash flow to equity calculator
Net income of 100,000, plus 25,000 of depreciation, minus 40,000 of capex and an 8,000 rise in working capital, plus 10,000 of net borrowing, leaves FCFE of…
Aabuela
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💰 Finance & moneyFree
FCFF calculator
EBIT of 500,000 taxed at 0.25 gives NOPAT of 375,000; add 80,000 of depreciation, subtract 120,000 of capex and a 30,000 rise in working capital, and FCFF is…
PPavilion
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💰 Finance & moneyFree
Free float calculator
Of 1,000,000,000 shares outstanding, with 150,000,000 restricted and 100,000,000 held by insiders, only 750,000,000 can trade on the market: a public float of…
Aabuela
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💰 Finance & moneyFree
Full-time equivalent calculator
400 hours worked against a 40-hour full-time week is 10 FTE. Enter the group's total hours and the full-time standard for the same period, and get the headcount…
PPavilion
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💰 Finance & moneyFree
Future salary calculator
A 50,000 salary with a 3% raise every year reaches 57,963.70 after 5 years, an increase of 7,963.70.
Aabuela
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💰 Finance & moneyFree
Future value calculator
1,000 invested at 5% per period for 10 periods grows to 1,628.89462678, of which 628.89462678 is interest.
Aabuela
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💰 Finance & moneyFree
Futures contract calculator
Two long contracts of size 50, bought at 4,500 and closed at 4,512.25, make 1,225: a 12.25-point move times 50 times 2.
PPavilion
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💰 Finance & moneyFree
GDP calculator
Consumption of 10,000, investment of 3,000, government spending of 2,500, exports of 1,500 and imports of 2,000 give a GDP of 15,000, with net exports of −500.
PPavilion
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GDP gap calculator
Actual GDP of 10,500 against a potential of 10,000 is a gap of 500, or 5% above potential: an inflationary gap.
Aabuela
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💰 Finance & moneyFree
GDP growth calculator
GDP that moves from 100 to 103 grew by 0.03, the 3% a news report would quote. Enter the earlier and the later figure to get the period-to-period growth rate…
PPavilion
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Georgia overtime calculator
At 18.5 an hour, a 48-hour week in Georgia pays 740 for the first 40 hours plus 222 for 8 overtime hours at 27.75: 962 in total.
Aabuela
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💰 Finance & moneyFree
Gift of equity calculator
A home worth 400,000 sold to a child for 350,000 carries a 50,000 gift of equity; with an 18,000 annual exclusion, 32,000 remains reportable.
PPavilion
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💰 Finance & moneyFree
Gold melt value calculator
Ten grams of 18-karat gold at 80 per gram contain 7.5 grams of fine gold and melt for 600. Enter the weight, the karat stamp and your own spot quote to see the…
Aabuela
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💰 Finance & moneyFree
Goodwill calculator
Pay 1,000,000 for a business with 800,000 of identifiable assets and 200,000 of liabilities, and 400,000 of the price is goodwill.
PPavilion
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💰 Finance & moneyFree
Google AdSense calculator
10,000 daily page views at a 1.5% click-through rate and 0.40 per click bring 150 clicks and 60 a day: 1,800 a month and 21,900 a year.
Aabuela
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💰 Finance & moneyFree
Graham number calculator
With earnings of 2.5 per share and a book value of 20 per share, Graham's price ceiling is 33.54, the square root of 22.5 × 2.5 × 20.
PPavilion
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Gratuity calculator
A monthly basic salary of 10,000, 5 years of service and 21 days per year give an end-of-service gratuity of 35,000, from a daily wage of 333.33.
Aabuela
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Gross margin calculator
Revenue of 100,000 with 60,000 of cost of goods sold leaves a gross profit of 40,000, a 40% gross margin.
PPavilion
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Gross rent multiplier calculator
A building priced at 240,000 that brings in 24,000 of gross rent a year has a gross rent multiplier of 10: the buyer pays ten years of current rent.
Aabuela
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Gross to net calculator
A gross salary of 50,000 with a 22% tax rate and 1,500 of fixed deductions leaves 37,500 to take home, after 11,000 of tax.
PPavilion
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Growing annuity calculator
A first payment of 100 growing 3% a period, discounted at 8% over 5 periods, is worth 422.03508855 today and 620.108005 at the last payment.
Aabuela
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GRP calculator
40% reach at an average frequency of 3 delivers 120 gross rating points. Multiply reach by frequency to compare the advertising weight of weeks, channels or…
PPavilion
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GST calculator
A net price of 100 at a 10% GST rate carries 10 of GST and a gross price of 110. Enter the net amount and the rate that applies, whether 10, 15 or 18 percent…
Aabuela
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GST QST calculator
A pre-tax price of 100 at 5% GST and 9.975% QST carries 5 of GST and 9.98 of QST, for a total of 114.98.
PPavilion
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GTIN check digit calculator
Enter the leading digits 629104150021 and get check digit 3 and the full code 6291041500213, a GTIN-13.
Aabuela
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💰 Finance & moneyFree
Hedge ratio calculator
With a correlation of 0.9, a spot volatility of 4 and a futures volatility of 5, the optimal hedge ratio is 0.72: short 0.72 futures units for each unit of spot…
PPavilion
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💰 Finance & moneyFree
HELOC calculator
A home worth 400,000 with 220,000 left on the mortgage and an 80% cap supports a 100,000 credit line; drawing 40,000 at 8.5% costs 283.33 a month in interest…
Aabuela
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HHI calculator
Market shares of 40, 30, 20 and 10 percent give an HHI of 3,000, highly concentrated under the 2010 merger guidelines.
PPavilion
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💰 Finance & moneyFree
High-low method calculator
A high month of 10,000 units costing 25,000 and a low month of 6,000 units costing 17,000 split into a variable cost of 2 per unit and a fixed cost of 5,000.
Aabuela
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Home improvement loan calculator
Borrow 35,000 for a remodel at 8.5% over 7 years and pay 554.28 a month: 11,559.52 in interest and 46,559.52 in total.
PPavilion
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Home loan calculator
A 300,000 home loan at 6.5% over 30 years means 360 equal monthly payments that add up to 682,632, of which 382,632 is interest.
Aabuela
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💰 Finance & moneyFree
Home loan EMI calculator
A 5,000,000 home loan at 8.5% over 240 months has an EMI of 43,391.16, and over those 20 years you pay more in interest than you borrowed.
PPavilion
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Home mortgage calculator
A 250,000 mortgage at 6.75% over 30 years means a payment of 1,621.5 a month and 333,734.37 in interest by the end.
Aabuela
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US home value calculator
A home bought for 250,000 when the regional index stood at 180 is estimated at 375,000 once the index reaches 270, a 50% rise.
PPavilion
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Hourly to annual salary
At 25 an hour for 40 hours a week, you earn 52,000 a year before tax: the wage times your weekly hours times 52 weeks.
Aabuela
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Hourly to salary with overtime
At 25 an hour with 40 regular hours and 5 overtime hours at time-and-a-half, you earn 1,187.5 a week and 61,750 a year.
PPavilion
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Hours pay calculator
Enter 48 hours at 20 an hour with time-and-a-half after 40, and you get 800 in regular pay, 240 in overtime and 1,040 gross.
Aabuela
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HR software ROI calculator
Saving 45,000 a year after spending 10,000 on software and 5,000 on implementation is a 200% return.
PPavilion
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💰 Finance & moneyFree
Illinois income tax calculator
Illinois taxes every dollar at one flat rate, so 80,000 of taxable income owes 3,960 at 4.95%. Enter your IL-1040 taxable income to see the tax owed, or try a…
Aabuela
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💰 Finance & moneyFree
Australian income tax calculator
On 80,000 of taxable income you pay 14,520 in Australian income tax for 2026-27, an effective rate of 18.15%.
PPavilion
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💰 Finance & moneyFree
Information ratio calculator
A portfolio that returned 12% against a 10% benchmark with a 4% tracking error has an information ratio of 0.5: half a point of excess return per point of…
Aabuela
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How it works

1

Get your key

Create an account with your email and add balance when you need it. No subscription, no sales call.

2

Call the endpoint

One authenticated POST. The API returns a task_id immediately — copy-paste snippets in five languages on every page.

3

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Receive a signed webhook the moment it's ready, or fetch a signed link. A failed task is never charged.

Pay only for what you use

No subscription. Free tools run in your browser; paid tasks draw from your balance, which never expires.

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On-device utilities — hash, QR, JSON, Text→PDF and more — run in your browser. No account, no limits.

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