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.
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6channels
1API & key
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The full catalog
Search or filter by category. Every capability is its own endpoint with a published price.
⚙️ Developer UtilitiesFree
Weighted average calculator
mean of values with weights
A
POST /stat/weighted-mean$0.002⚙️ Developer UtilitiesFree
Z-score calculator
standardize values with mean and standard deviation, free
A
POST /stat/z-score$0.002⚙️ Developer UtilitiesFree
Remove duplicate lines
keep first occurrences, free online
A
POST /str/dedupe-lines$0.002⚙️ Developer UtilitiesFree
Convert to dot.case
turn any phrase into dot.case, free
A
POST /str/dot-case$0.002⚙️ Developer UtilitiesFree
List unique words
extract word list in order, free
A
POST /str/extract-unique-words$0.002⚙️ Developer UtilitiesFree
Find and replace text
swap every match, free online
A
POST /str/find-replace$0.002⚙️ Developer UtilitiesFree
Kebab-case converter
lowercase words joined with hyphens, free
P
POST /str/kebab-case$0.002⚙️ Developer UtilitiesFree
Count lines
total, non-empty and blank, free
A
POST /str/line-count$0.002⚙️ Developer UtilitiesFree
Convert to lowercase
turn any text into lower case letters, free
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POST /str/lowercase$0.002⚙️ Developer UtilitiesFree
Add line numbers to text
sequential numbering, free online
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POST /str/number-lines$0.002⚙️ Developer UtilitiesFree
Pad text
fill a string to a target width left, right, or both sides, free
A
POST /str/pad$0.002⚙️ Developer UtilitiesFree
Count paragraphs
blank-line paragraph counter, free
P
POST /str/paragraph-count$0.002⚙️ Developer UtilitiesFree
PascalCase converter
convert text to PascalCase, free
A
POST /str/pascal-case$0.002⚙️ Developer UtilitiesFree
Remove accents from text
strip diacritics to plain ASCII letters, free
A
POST /str/remove-accents$0.002⚙️ Developer UtilitiesFree
Remove line breaks from text
join to a single line (optional space), free
A
POST /str/remove-line-breaks$0.002⚙️ Developer UtilitiesFree
Remove extra spaces
collapse repeated spaces and trim, free
A
POST /str/remove-spaces$0.002⚙️ Developer UtilitiesFree
Reverse text
flip character order, Unicode-safe, free
A
POST /str/reverse$0.002⚙️ Developer UtilitiesFree
Reverse word order
flip words, keep each word intact, free
P
POST /str/reverse-words$0.002⚙️ Developer UtilitiesFree
Sentence case converter
capitalize sentences, free
A
POST /str/sentence-case$0.002⚙️ Developer UtilitiesFree
Sentence counter
count sentences in text free
A
POST /str/sentence-count$0.002⚙️ Developer UtilitiesFree
Convert to snake_case
turn any phrase into snake_case, free
A
POST /str/snake-case$0.002⚙️ Developer UtilitiesFree
Sort lines alphabetically
A–Z or Z–A, free online
A
POST /str/sort-lines$0.002⚙️ Developer UtilitiesFree
Title case converter
capitalize words with small-word rules, free
P
POST /str/title-case$0.002⚙️ Developer UtilitiesFree
Trim whitespace from every line
strip leading and trailing spaces, free
P
POST /str/trim-lines$0.002⚙️ Developer UtilitiesFree
Truncate text
max length with ellipsis, optional word boundary, free
P
POST /str/truncate$0.002⚙️ Developer UtilitiesFree
Word & character counter
count words, sentences, paragraphs free
A
POST /str/word-count$0.002⚙️ Developer UtilitiesFree
Area thermal expansion calculator
ΔA = A₀·α·ΔT free
A
POST /thermo/area-expansion$0.002⚙️ Developer UtilitiesFree
Bernoulli equation calculator
unknown pressure from density, speed, height, free
P
POST /thermo/bernoulli-pressure$0.002⚙️ Developer UtilitiesFree
Boyle's law calculator
find final P or V from P1·V1=P2·V2 at constant T, free
A
POST /thermo/boyles-law$0.002⚙️ Developer UtilitiesFree
Buoyancy calculator
F_b = ρ V g (Archimedes), free
P
POST /thermo/buoyant-force$0.002⚙️ Developer UtilitiesFree
Celsius to Fahrenheit calculator
convert C↔F free online
A
POST /thermo/celsius-fahrenheit$0.002⚙️ Developer UtilitiesFree
Pipe flow continuity calculator
outlet speed from A1·v1=A2·v2, free
A
POST /thermo/continuity-equation$0.002⚙️ Developer UtilitiesFree
Partial pressure calculator
Dalton's law Pi=yi·P, free
A
POST /thermo/dalton-partial-pressure$0.002⚙️ Developer UtilitiesFree
Entropy change calculator
ΔS = Q/T from heat transferred and absolute temperature, free
A
POST /thermo/entropy-change$0.002⚙️ Developer UtilitiesFree
Mixing temperature calculator
equilibrium after mixing two masses, free
P
POST /thermo/final-temperature-mixing$0.002⚙️ Developer UtilitiesFree
Gas density calculator
ideal gas ρ = PM/RT from pressure, molar mass and T, free
A
POST /thermo/gas-density$0.002⚙️ Developer UtilitiesFree
Molar volume calculator
ideal gas Vm = RT/P from pressure and temperature, free
A
POST /thermo/gas-molar-volume$0.002⚙️ Developer UtilitiesFree
Gay-Lussac law calculator
P/T at constant volume, free
A
POST /thermo/gay-lussac-law$0.002⚙️ Developer UtilitiesFree
Specific heat calculator
heat energy Q=mcΔT in joules
A
POST /thermo/heat-energy$0.002⚙️ Developer UtilitiesFree
Hydrostatic pressure calculator
P = ρ·g·h with optional atmospheric offset, free
A
POST /thermo/hydrostatic-pressure$0.002⚙️ Developer UtilitiesFree
Ideal gas law calculator
solve PV = nRT for P, V, n, or T, free
P
POST /thermo/ideal-gas-law$0.002⚙️ Developer UtilitiesFree
Isothermal work calculator
ideal-gas W=nRT ln(V2/V1), free
A
POST /thermo/isothermal-work$0.002⚙️ Developer UtilitiesFree
Kelvin converter
Celsius, Fahrenheit and Kelvin together, free
A
POST /thermo/kelvin-converter$0.002⚙️ Developer UtilitiesFree
Linear thermal expansion calculator
ΔL = L₀·α·ΔT from length, coefficient and temperature change, free
A
POST /thermo/linear-expansion$0.002⚙️ Developer UtilitiesFree
Newton's law of cooling calculator
T(t) from Ta, T0, k, t, free
P
POST /thermo/newton-cooling$0.002⚙️ Developer UtilitiesFree
Pressure calculator
P=F/A in Pa, bar and psi, free
A
POST /thermo/pressure-force-area$0.002⚙️ Developer UtilitiesFree
Relative humidity calculator
RH from actual and saturation vapor pressure, free
P
POST /thermo/relative-humidity$0.002⚙️ Developer UtilitiesFree
Reynolds number calculator
Re=ρVL/μ, free
A
POST /thermo/reynolds-number$0.002⚙️ Developer UtilitiesFree
Specific heat capacity calculator
c = Q/(m·ΔT) from heat, mass and temperature change, free
A
POST /thermo/specific-heat-capacity$0.002⚙️ Developer UtilitiesFree
Heat conduction calculator
Q = k A ΔT / L through a wall, free
P
POST /thermo/thermal-conduction$0.002⚙️ Developer UtilitiesFree
Thermal efficiency calculator
η = (W/Q_in)×100% from work output and heat input, free
A
POST /thermo/thermal-efficiency$0.002⚙️ Developer UtilitiesFree
Arrival local time calculator
flight duration + UTC offsets, free
A
POST /travel/arrival-local-time$0.002⚙️ Developer UtilitiesFree
Average speed calculator
total distance over elapsed time free
A
POST /travel/average-speed$0.002⚙️ Developer UtilitiesFree
Travel points value calculator
cents per point vs baseline, free
P
POST /travel/award-value$0.002⚙️ Developer UtilitiesFree
Cycling time estimator
bike ride duration from distance and speed, free
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POST /travel/cycling-time$0.002⚙️ Developer UtilitiesFree
Travel distance unit converter
kilometers, miles and nautical miles, free
A
POST /travel/distance-unit-convert$0.002⚙️ Developer UtilitiesFree
ETA calculator
estimated arrival clock time from departure, free
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POST /travel/eta-calculator$0.002⚙️ Developer UtilitiesFree
MPG to L/100km converter
US MPG, imperial MPG and liters per 100 km, free
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POST /travel/fuel-economy-convert$0.002⚙️ Developer UtilitiesFree
Luggage linear inches calculator
L+W+H and airline limit check, free
A
POST /travel/luggage-linear-inches$0.002⚙️ Developer UtilitiesFree
Luggage volume calculator
bag liters and cubic inches from L×W×H, free
A
POST /travel/luggage-volume$0.002No capabilities match your search.
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.
Pay-as-you-go
Per task
$0.002+
The full API — 7500+ capabilities — billed only for what you run, from $0.002 per call. No monthly fee.
Balance
$10.00+
Top up your balance and spend it across web, API and the app. It never expires.