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
RL filter cutoff calculator
fc=R/(2πL) in hertz, free
AAspire
POST /elec/rl-filter-cutoff$0.002
⚙️ Developer UtilitiesFree
RL time constant calculator
τ = L/R for series RL circuits
Aabuela
POST /elec/rl-time-constant$0.002
⚙️ Developer UtilitiesFree
Slew rate from full-power bandwidth
SR=2πfVpeak op-amp calculator, free
AAspire
POST /elec/slew-rate-bandwidth$0.002
⚙️ Developer UtilitiesFree
Johnson noise calculator
RMS thermal noise voltage √(4kTRΔf), free
AAspire
POST /elec/thermal-noise$0.002
⚙️ Developer UtilitiesFree
Voltage drop calculator
AWG wire, length, current, free
PPavilion
POST /elec/voltage-drop-wire$0.002
⚙️ Developer UtilitiesFree
Voltage gain dB calculator
Av = 20·log10(Vout/Vin)
Aabuela
POST /elec/voltage-gain-db$0.002
⚙️ Developer UtilitiesFree
Watts to dBm calculator
convert power in W or mW to dBm, free
AAspire
POST /elec/watts-to-dbm$0.002
⚙️ Developer UtilitiesFree
Watts, volts & amps calculator
solve power, voltage or current
Aabuela
POST /elec/watts-volts-amps$0.002
⚙️ Developer UtilitiesFree
Frequency to wavelength calculator
free-space RF λ = c/f, free
PPavilion
POST /elec/wavelength-frequency-rf$0.002
⚙️ Developer UtilitiesFree
Wheatstone bridge calculator
find unknown resistance Rx, free
PPavilion
POST /elec/wheatstone-bridge$0.002
⚙️ Developer UtilitiesFree
Zener diode resistor calculator
series resistor value and power rating, free
AAspire
POST /elec/zener-resistor$0.002
⚙️ Developer UtilitiesFree
Affine cipher
encrypt or decrypt with keys a and b, free
Aabuela
POST /enc/affine$0.002
⚙️ Developer UtilitiesFree
ASCII code lookup
character to decimal, hex and octal, free
Aabuela
POST /enc/ascii-lookup$0.002
⚙️ Developer UtilitiesFree
Atbash cipher
mirror the alphabet (A↔Z), free online
Aabuela
POST /enc/atbash$0.002
⚙️ Developer UtilitiesFree
Autokey cipher
encrypt or decrypt text with a keyword extended by the message, free
AAspire
POST /enc/autokey$0.002
⚙️ Developer UtilitiesFree
Base16 RFC 4648 encoder & decoder
uppercase hex, free
PPavilion
POST /enc/base16-rfc4648$0.002
⚙️ Developer UtilitiesFree
Base32 encoder & decoder
RFC 4648 A-Z and 2-7, free
AAspire
POST /enc/base32$0.002
⚙️ Developer UtilitiesFree
Base58 encoder & decoder
Bitcoin alphabet, free online
PPavilion
POST /enc/base58$0.002
⚙️ Developer UtilitiesFree
Flickr Base58 encoder & decoder
short URL alphabet, free
PPavilion
POST /enc/base58-flickr$0.002
⚙️ Developer UtilitiesFree
Text to Base64
encode or decode with standard padding, free
Aabuela
POST /enc/base64$0.002
⚙️ Developer UtilitiesFree
Ascii85 / Base85 encoder
encode or decode text, free
Aabuela
POST /enc/base85$0.002
⚙️ Developer UtilitiesFree
Beaufort cipher
encrypt or decrypt text with a keyword, free
AAspire
POST /enc/beaufort$0.002
⚙️ Developer UtilitiesFree
Bifid cipher
encrypt or decrypt text with Polybius fractionation and a keyword, free
AAspire
POST /enc/bifid$0.002
⚙️ Developer UtilitiesFree
Text to binary converter
8-bit encode & decode, free
PPavilion
POST /enc/binary-text$0.002
⚙️ Developer UtilitiesFree
Braille translator
text to Unicode Braille (Grade 1) and back, free
AAspire
POST /enc/braille$0.002
⚙️ Developer UtilitiesFree
Caesar cipher
encrypt or decrypt text with a letter shift, free
AAspire
POST /enc/caesar$0.002
⚙️ Developer UtilitiesFree
Gronsfeld cipher
encrypt & decrypt with a numeric key, free
PPavilion
POST /enc/gronsfeld$0.002
⚙️ Developer UtilitiesFree
Text to hex converter
encode or decode UTF-8 bytes, free
Aabuela
POST /enc/hex-text$0.002
⚙️ Developer UtilitiesFree
Keyboard shift cipher
QWERTY adjacent-key encrypt or decrypt, free
AAspire
POST /enc/keyboard-shift$0.002
⚙️ Developer UtilitiesFree
Leetspeak translator
convert text to 1337 speak and back, free
AAspire
POST /enc/leetspeak$0.002
⚙️ Developer UtilitiesFree
Multiplicative cipher
encrypt & decrypt with a coprime key, free
PPavilion
POST /enc/multiplicative$0.002
⚙️ Developer UtilitiesFree
NATO phonetic alphabet
spell or decode Alpha Bravo Charlie, free
Aabuela
POST /enc/nato$0.002
⚙️ Developer UtilitiesFree
Nihilist cipher
encrypt or decrypt with Polybius square keyword and numeric key, free
AAspire
POST /enc/nihilist$0.002
⚙️ Developer UtilitiesFree
Text to octal converter
encode UTF-8 bytes as base-8, free
AAspire
POST /enc/octal-text$0.002
⚙️ Developer UtilitiesFree
Playfair cipher
encrypt & decrypt with a keyword square, free
PPavilion
POST /enc/playfair$0.002
⚙️ Developer UtilitiesFree
Polybius square cipher
encrypt or decrypt letters as row-column digit pairs, free
AAspire
POST /enc/polybius$0.002
⚙️ Developer UtilitiesFree
Punycode converter
encode Unicode domains to xn--, free
Aabuela
POST /enc/punycode$0.002
⚙️ Developer UtilitiesFree
Rail fence cipher
encrypt or decrypt zigzag transposition, free
Aabuela
POST /enc/rail-fence$0.002
⚙️ Developer UtilitiesFree
ROT13 encoder
rotate letters by 13, free online
Aabuela
POST /enc/rot13$0.002
⚙️ Developer UtilitiesFree
ROT18 cipher
ROT13 letters + ROT5 digits, free online
AAspire
POST /enc/rot18$0.002
⚙️ Developer UtilitiesFree
ROT5 digit cipher
rotate 0–9 by five, free online
PPavilion
POST /enc/rot5$0.002
⚙️ Developer UtilitiesFree
Tap code translator
Polybius encode & decode, free
PPavilion
POST /enc/tap-code$0.002
⚙️ Developer UtilitiesFree
Trifid cipher
encrypt or decrypt with a 27-symbol cube, free
Aabuela
POST /enc/trifid$0.002
⚙️ Developer UtilitiesFree
Unicode code point converter
characters ↔ U+XXXX, free
AAspire
POST /enc/unicode-codepoint$0.002
⚙️ Developer UtilitiesFree
URL percent encoder & decoder
escape reserved characters, free
AAspire
POST /enc/url$0.002
⚙️ Developer UtilitiesFree
UTF-8 byte encoder
text to hex bytes & decode, free
PPavilion
POST /enc/utf8-bytes$0.002
⚙️ Developer UtilitiesFree
XOR cipher
encrypt or decrypt with a repeating key, free online
Aabuela
POST /enc/xor$0.002
⚙️ Developer UtilitiesFree
Base62 number converter
integer to or from base-62 (0-9A-Za-z), free
AAspire
POST /fmt/base62$0.002
⚙️ Developer UtilitiesFree
Binary to hex converter
base-2 string to base-16 value, free
AAspire
POST /fmt/binary-hex$0.002
⚙️ Developer UtilitiesFree
Chinese number converter
everyday & financial numerals
Aabuela
POST /fmt/chinese-numerals$0.002
⚙️ Developer UtilitiesFree
Number to currency words
spell money for cheque writing (e.g. 1250.50 → one thousand two hundred fifty and 50/100), free
PPavilion
POST /fmt/currency-words$0.002
⚙️ Developer UtilitiesFree
Decimal to binary converter
whole number to base-2 string, free
AAspire
POST /fmt/decimal-binary$0.002
⚙️ Developer UtilitiesFree
Decimal to fraction converter
reduced numerator/denominator, free
Aabuela
POST /fmt/decimal-fraction$0.002
⚙️ Developer UtilitiesFree
Decimal to octal converter
base-10 to base-8, free
Aabuela
POST /fmt/decimal-octal$0.002
⚙️ Developer UtilitiesFree
Decimal to percent converter
0.25 to 25%, free online
AAspire
POST /fmt/decimal-percent$0.002
⚙️ Developer UtilitiesFree
Duodecimal converter
base-10 ↔ base-12 with dek (X) and el (E), free
AAspire
POST /fmt/duodecimal$0.002
⚙️ Developer UtilitiesFree
Fraction to decimal converter
turn a/b into a decimal value, free
AAspire
POST /fmt/fraction-decimal$0.002
⚙️ Developer UtilitiesFree
Gray code converter
binary ↔ reflected Gray, free
Aabuela
POST /fmt/gray-code$0.002
⚙️ Developer UtilitiesFree
Hex to binary converter
base-16 string to base-2 bits, free
PPavilion
POST /fmt/hex-binary$0.002
⚙️ Developer UtilitiesFree
Hex to decimal converter
base-16 string to integer, free
PPavilion
POST /fmt/hex-decimal$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.