ForHosting KIT

Everything you need.
One Kit.

Hundreds of ready-made tasks — PDF, images, audio, OCR, text AI, scraping, data and more — behind a single REST API. Send a job, get a finished result by webhook. No servers, no per-model tokens, a price you can read.

REST APILive
EmailLive
Webforhosting.com/kitLive
TelegramLive
iOS & AndroidBuilding
WhatsAppComing
7554ready-made tools
6channels
1API & key
$0.002per call, from

New capabilities

Fresh in the kit — just landed.

New⚙️ Developer UtilitiesVolume to density calculatorρ=m/V from mass and volumeAabuela$0.002Open phys.volume_to_densityNew⚙️ Developer UtilitiesVoltage regulation calculator% from no-load and full-load VSsamurai$0.002Open phys.voltage_regulationNew⚙️ Developer UtilitiesVickers hardness number calculatorHV from force and diagonalPPavilion$0.002Open phys.vickers_hardness_numberNew⚙️ Developer UtilitiesVelocity calculatoraverage v = d/t in metres per secondAabuela$0.002Open phys.velocityNew⚙️ Developer UtilitiesValve flow coefficient calculatorCv from GPM, ΔP and GSsamurai$0.002Open phys.valve_flow_coefficientNew⚙️ Developer UtilitiesBarrel twist rate calculatorGreenhill formula, one turn per inchPPavilion$0.002Open phys.twist_rateNew⚙️ Developer UtilitiesTrue strain calculatorε_t = ln(1+ε) from engineering strainAabuela$0.002Open phys.true_strainNew⚙️ Developer UtilitiesTransmission coefficient calculatorpower T from η₁, η₂Ssamurai$0.002Open phys.transmissionNew⚙️ Developer UtilitiesTorsional stiffness calculatorκ = GJ/L in N·m/rad, freePPavilion$0.002Open phys.torsional_stiffnessNew⚙️ Developer UtilitiesTorsional spring calculatorκ = E d⁴ / (64 D N), N·mm/radAabuela$0.002Open phys.torsional_springNew⚙️ Developer UtilitiesToilet paper race mass moment of inertiaI = ½m(ri²+ro²)Ssamurai$0.002Open phys.toilet_paper_race_mass_moment_inertiaNew⚙️ Developer UtilitiesTime dilation calculatordilated time from proper time and velocityPPavilion$0.002Open phys.time_dilation

The full catalog

Search or filter by category. Every capability is its own endpoint with a published price.

⚙️ Developer UtilitiesFree
Pascal conversion
Pa to kPa, bar, psi and atm, free
PPavilion
POST /conv/pascal-conversion$0.002
⚙️ Developer UtilitiesFree
Pint to pound converter
US pints to pounds by density, free
PPavilion
POST /conv/pint-to-pound$0.002
⚙️ Developer UtilitiesFree
Pints to gallons converter
8 pints equal 1 US gallon, free
Ssamurai
POST /conv/pints-to-gallons-converter$0.002
⚙️ Developer UtilitiesFree
Pounds and ounces
convert ounces to lb plus leftover oz
Aabuela
POST /conv/pounds-ounces$0.002
⚙️ Developer UtilitiesFree
Pounds to lbs converter
exact identity factor, free
Ssamurai
POST /conv/pounds-to-lbs$0.002
⚙️ Developer UtilitiesFree
Pounds to stone converter
divide by 14, free online
Aabuela
POST /conv/pounds-to-stone$0.002
⚙️ Developer UtilitiesFree
PPM to mg/L converter
assuming water density, free
PPavilion
POST /conv/ppm-to-mgl-converter$0.002
⚙️ Developer UtilitiesFree
Pressure unit conversion
Pa, kPa, bar, psi, and atm, free
Ssamurai
POST /conv/pressure-unit-conversion$0.002
⚙️ Developer UtilitiesFree
PSI to inches of water conversion
factor 27.7076, free
PPavilion
POST /conv/psi-to-inches-of-water-conversion$0.002
⚙️ Developer UtilitiesFree
Psig to psia converter
gauge to absolute, free in browser
Aabuela
POST /conv/psig-to-psia-conversion$0.002
⚙️ Developer UtilitiesFree
Quantity converter
convert compatible units of the same kind
Ssamurai
POST /conv/quantity-converter$0.002
⚙️ Developer UtilitiesFree
Quarters to dollars converter
25 cents each, free
Aabuela
POST /conv/quarters-to-dollars$0.002
⚙️ Developer UtilitiesFree
Quarts to pounds converter
US quarts to pounds by density, free
PPavilion
POST /conv/quarts-to-pounds$0.002
⚙️ Developer UtilitiesFree
Radiation converter
Bq, Ci, Gy, rad, Sv, rem, free
Ssamurai
POST /conv/radiation-converter$0.002
⚙️ Developer UtilitiesFree
RMS to peak watts converter
Ppeak = Prms × √2, free
Aabuela
POST /conv/rms-to-watts$0.002
⚙️ Developer UtilitiesFree
Roman numerals
convert 1–3999 to I–MMMCMXCIX, free
PPavilion
POST /conv/roman-numerals$0.002
⚙️ Developer UtilitiesFree
Scale conversion calculator
real-world length to 1:N, free
Ssamurai
POST /conv/scale-conversion$0.002
⚙️ Developer UtilitiesFree
Seconds converter
minutes, hours and days, free
Aabuela
POST /conv/seconds-converter$0.002
⚙️ Developer UtilitiesFree
Seconds to hours converter
fast duration calculator
Bbarbara
POST /conv/seconds-to-hours-converter$0.002
⚙️ Developer UtilitiesFree
Post Office MIS calculator
monthly income from deposit and rate
Aabuela
POST /fin/post-office-monthly-income-scheme$0.002
⚙️ Developer UtilitiesFree
Powerball calculator
jackpot odds and expected value, free
Ssamurai
POST /fin/powerball$0.002
⚙️ Developer UtilitiesFree
Pre- and post-money valuation
from investment and one given value
PPavilion
POST /fin/pre-and-post-money-valuation$0.002
⚙️ Developer UtilitiesFree
Price per sqft calculator
unit price from sale and floor area
Ssamurai
POST /fin/price-per-sqft$0.002
⚙️ Developer UtilitiesFree
Price per square meter calculator
property unit price, free
Aabuela
POST /fin/price-per-square-meter$0.002
⚙️ Developer UtilitiesFree
Price quantity calculator
total from unit price and quantity
PPavilion
POST /fin/price-quantity$0.002
⚙️ Developer UtilitiesFree
Price to sales ratio calculator
P/S from market cap, free
Aabuela
POST /fin/price-to-sales-ratio$0.002
⚙️ Developer UtilitiesFree
Private savings calculator
S = Y − T − C from national income
Ssamurai
POST /fin/private-savings$0.002
⚙️ Developer UtilitiesFree
Profit calculator
amount from total revenue minus total costs
PPavilion
POST /fin/profit$0.002
⚙️ Developer UtilitiesFree
PVGO calculator
present value of growth opportunities
Aabuela
POST /fin/pvgo$0.002
⚙️ Developer UtilitiesFree
PVIFA calculator
present value interest factor of an annuity
Ssamurai
POST /fin/pvifa$0.002
⚙️ Developer UtilitiesFree
Rate of pay calculator
hourly rate from total pay and hours
PPavilion
POST /fin/rate-of-pay$0.002
⚙️ Developer UtilitiesFree
Real estate commission calculator
agent fee from sale price
Aabuela
POST /fin/real-estate-commission$0.002
⚙️ Developer UtilitiesFree
Real estate commission with VAT calculator
sale, rate, tax, free
Ssamurai
POST /fin/real-estate-commission-vat$0.002
⚙️ Developer UtilitiesFree
Receivables turnover calculator
net credit sales over average AR
PPavilion
POST /fin/receivables-turnover$0.002
⚙️ Developer UtilitiesFree
Remote vs on-location workers
commute and salary savings
Aabuela
POST /fin/remote-vs-on-location-workers$0.002
⚙️ Developer UtilitiesFree
Rent calculator
affordable monthly rent from income
Ssamurai
POST /fin/rent$0.002
⚙️ Developer UtilitiesFree
Rent increase calculator
new rent from current rent and a percent
PPavilion
POST /fin/rent-increase$0.002
⚙️ Developer UtilitiesFree
Residual income calculator
NOI minus required return on capital
Aabuela
POST /fin/residual-income$0.002
⚙️ Developer UtilitiesFree
Retained earnings calculator
ending RE from NI and dividends
Ssamurai
POST /fin/retained-earnings$0.002
⚙️ Developer UtilitiesFree
Retention ratio calculator
earnings kept after dividends
PPavilion
POST /fin/retention-ratio$0.002
⚙️ Developer UtilitiesFree
Revenue calculator
total from units sold times price per unit
PPavilion
POST /fin/revenue$0.002
⚙️ Developer UtilitiesFree
Revenue growth calculator
percent change vs previous period
Aabuela
POST /fin/revenue-growth$0.002
⚙️ Developer UtilitiesFree
Revenue per employee calculator
RPE from revenue and headcount, free
Ssamurai
POST /fin/revenue-per-employee$0.002
⚙️ Developer UtilitiesFree
ROA calculator
return on assets from net income and total assets
PPavilion
POST /fin/roa$0.002
⚙️ Developer UtilitiesFree
ROAS calculator
return on ad spend from revenue, free
Aabuela
POST /fin/roas$0.002
⚙️ Developer UtilitiesFree
ROIC calculator
return on invested capital from NOPAT, free
Ssamurai
POST /fin/roic$0.002
⚙️ Developer UtilitiesFree
Roth IRA calculator
tax-free future value of contributions
PPavilion
POST /fin/roth-ira$0.002
⚙️ Developer UtilitiesFree
RSI calculator
relative strength index from closing prices
Aabuela
POST /fin/rsi$0.002
⚙️ Developer UtilitiesFree
RV loan calculator
monthly payment from principal, rate, and term
Ssamurai
POST /fin/rv-loan$0.002
⚙️ Developer UtilitiesFree
SaaS metrics calculator
MRR, churn rate and customer LTV
PPavilion
POST /fin/saas-metrics$0.002
⚙️ Developer UtilitiesFree
Safety stock calculator
max vs average usage and lead time
Ssamurai
POST /fin/safety-stock$0.002
⚙️ Developer UtilitiesFree
Salary inflation calculator
inflation-adjusted future pay
Aabuela
POST /fin/salary-inflation$0.002
⚙️ Developer UtilitiesFree
Sales calculator
tax amount and total from rate, free
Ssamurai
POST /fin/sales$0.002
⚙️ Developer UtilitiesFree
Sales commission calculator
total from amount, rate, bonus
Aabuela
POST /fin/sales-commission$0.002
⚙️ Developer UtilitiesFree
Savings calculator
final balance from deposit, contribution, rate
PPavilion
POST /fin/savings$0.002
⚙️ Developer UtilitiesFree
Savings plan calculator
future value of monthly deposits
PPavilion
POST /fin/savings-plan$0.002
⚙️ Developer UtilitiesFree
Savings withdrawal calculator
months until a balance depletes
Ssamurai
POST /fin/savings-withdrawal$0.002
⚙️ Developer UtilitiesFree
Scrap gold calculator
weight, karats and price per gram
Aabuela
POST /fin/scrap-gold$0.002
⚙️ Developer UtilitiesFree
UK SDLT calculator
stamp duty from price, buyer type, first-time status
PPavilion
POST /fin/sdlt-uk$0.002
⚙️ Developer UtilitiesFree
Second stimulus check calculator
amount from AGI and dependents
Aabuela
POST /fin/second-stimulus-check$0.002

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

Collect the result

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.

Free tools
$0.00

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

Balance
$10.00+

Top up your balance and spend it across web, API and the app. It never expires.