ForHosting KIT
Free tools that work
right in your browser.
Calculators, converters, PDF, text, images and much more — each with its own page. Type your data and get the result right here, with no sign-up and without your data leaving your device. Need them in your own app? The same tools are available by API.
REST APILive
EmailLive
Webkit.forhosting.comLive
TelegramLive
iOS & AndroidBuilding
WhatsAppComing
7830tools
7432free in your browser
8languages
6channels
Find your tool
Search in your own words or filter by category.
📏 Unit convertersFree
Tablespoons to cups converter
16 US tablespoons make exactly 1 cup, so cups are simply tablespoons divided by 16. Scale spoon measures from a recipe card, a meal-prep plan or a bakery batch…
A
Runs in your browser
📏 Unit convertersFree
Teaspoons to tablespoons converter
3 teaspoons make exactly 1 tablespoon, so 6 teaspoons are 2 tablespoons. Turn the teaspoon counts in a recipe, a spice note or a package dosing guide into…
S
Runs in your browser
📏 Unit convertersFree
Thermal diffusivity converter
1 m²/s is 10,000 cm²/s. Convert a thermal diffusivity (α) between eight metric and US units, from mm²/s to ft²/h, with exact area and time factors, while you…
S
Runs in your browser
📏 Unit convertersFree
Temperature gradient converter
0.03 K/m is 0.0164592 °F/ft. Convert a temperature gradient between kelvin, Celsius, Fahrenheit and Rankine per meter, foot, inch, centimeter, millimeter or…
S
Runs in your browser
📏 Unit convertersFree
Therms to kWh converter
1 therm is 29.307107017222 kWh. Turn the gas energy on a North American bill into the kilowatt-hours of an electricity meter with the exact factor instead of…
S
Runs in your browser
📏 Unit convertersFree
Troy ounces to grams converter
1 troy ounce is exactly 31.1034768 g. Turn the troy-ounce weight of gold, silver or platinum into grams for bullion invoices, assay certificates, jewellery…
S
Runs in your browser
📏 Unit convertersFree
Twip converter
1,440 twips are 72 points, exactly one inch. Convert Word and RTF layout sizes in twips to points, CSS pixels, inches, millimetres, centimetres, picas or OOXML…
S
Runs in your browser
📏 Unit convertersFree
Valve flow coefficient converter
100 Cv equals 86.5 Kᵥ. Convert a valve flow coefficient between the US Cv, the metric Kᵥ, Av and flow factor with fixed IEC factors, so two valve catalogs can…
S
Runs in your browser
📏 Unit convertersFree
Volume charge density converter
Translate charge spread through a volume between ten units: 1 C/m³ is 0.000001 C/cm³, and every value passes through coulombs per cubic metre so the result…
S
Runs in your browser
📏 Unit convertersFree
VSWR return loss converter
Enter one reading and get the whole mismatch picture: a VSWR of 1.5 means a reflection coefficient of 0.2, 4 % of the power reflected and a return loss of…
S
Runs in your browser
📏 Unit convertersFree
Watt-hours to joules converter
One watt-hour is exactly 3600 joules, and this converter applies that full factor to battery capacities, meter readings and lab figures instead of a rounded…
A
Runs in your browser
📏 Unit convertersFree
Watts to horsepower converter
One mechanical horsepower is 745.69987158227022 watts, and this converter divides by that full constant instead of a rounded shortcut, so motor, pump and…
A
Runs in your browser
📏 Unit convertersFree
Yards to feet converter
Multiply yards by exactly three to get feet: 10 yards are 30 feet, with no survey approximation and no metric detour.
A
Runs in your browser
⚙️ Developer UtilitiesFree
Aadhaar Verhoeff check digit
Get the Verhoeff check digit for the first eleven digits of an Aadhaar number, or check a full twelve-digit one: 2345 6789 012 gets 4, giving 2345 6789 0124.
P
Runs in your browser
⚙️ Developer UtilitiesFree
ABA routing check digit
Find or verify the ninth digit of a US bank routing number with the official 3-7-1 weights, so 02100002 gets check digit 1 and becomes 021000021.
A
Runs in your browser
⚙️ Developer UtilitiesFree
Able Baker alphabet
Spell any name or call sign with the pre-NATO US military alphabet: SOS becomes Sugar Oboe Sugar, and a string of Able Baker words decodes back to letters.
S
Runs in your browser
⚙️ Developer UtilitiesFree
Australian Business Number (ABN) check
Check an eleven-digit Australian Business Number with the official tax office rule: 53 004 085 616 gives a weighted sum of 445, which divides evenly by 89, so…
A
Runs in your browser
⚙️ Developer UtilitiesFree
Australian ACN check digit
Get the check digit for the first eight digits of an Australian Company Number, or validate all nine: 004 085 61 gets 6, giving 004 085 616.
P
Runs in your browser
⚙️ Developer UtilitiesFree
ADFGVX cipher
Encrypt or decrypt with the six-by-six German field cipher that handles letters and digits: ATTACKAT1200, with square keyword PRIVACY and transposition key…
A
Runs in your browser
⚙️ Developer UtilitiesFree
ADFGX cipher
Run the World War I ADFGX cipher, which turns each letter into a pair of the labels A, D, F, G and X and then shuffles the columns: under the keys NAVAL and…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Adler-32 checksum calculator
Get the Adler-32 checksum of any text, the two-sum check used inside zlib: Wikipedia gives 11e60398, with A at 920 and B at 4582.
S
Runs in your browser
⚙️ Developer UtilitiesFree
Albam Hebrew cipher
Swap each Hebrew letter with its partner in the other half of the alphabet: alef becomes lamed, bet becomes mem, and בראשית turns into מטלישכ.
A
Runs in your browser
⚙️ Developer UtilitiesFree
btoa Ascii85 encoder
Encode text in the original btoa dialect of Ascii85, with xbtoa Begin and End lines, z for four zero bytes and y for four spaces: Hello, world! becomes…
S
Runs in your browser
⚙️ Developer UtilitiesFree
ASL fingerspelling translator
Turn any name or code into the ordered list of ASL fingerspelling handshapes: ASL becomes the fist A, the fist S and the L shape, and digits get their own…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Cyrillic Atbash cipher
Mirror every Russian Cyrillic letter across the 33-letter alphabet, so А swaps with Я and ПРИВЕТ becomes ПОЦЭЪМ; running it again restores the original.
S
Runs in your browser
⚙️ Developer UtilitiesFree
Greek Atbash cipher
Mirror the 24 letters of the Greek alphabet, alpha with omega and beta with psi, so Καλημέρα becomes Οωξσνέθω and a second pass brings it back.
P
Runs in your browser
⚙️ Developer UtilitiesFree
AZERTY ↔ QWERTY converter
Fix text typed on the wrong keyboard layout by remapping each key between French AZERTY and US QWERTY: the six keys that read azerty on a French keyboard give…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Bijective base-26 encoder
Turn a column number into its spreadsheet letters, or letters back into a number: 27 becomes AA, 26 is Z and 702 is ZZ, the same labels Excel and Google Sheets…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Base32768 encoder & decoder
Pack text into Base32768, where each Unicode character carries fifteen bits for UTF-16 channels: Hello becomes just three characters, 䩲腻㐿.
A
Runs in your browser
⚙️ Developer UtilitiesFree
Crockford Base32 encoder & decoder
“Hello” becomes 91JPRV3F in Crockford Base32, an alphabet without I, L, O or U, so serial numbers and support codes survive being read aloud or retyped.
A
Runs in your browser
⚙️ Developer UtilitiesFree
z-base-32 encoder & decoder
“Hello” becomes jb1sa5dx in z-base-32, Zooko's human-oriented Base32 alphabet that leaves out 0, 2, l and v and adds no padding, so codes stay short and are…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Base58Check encoder & decoder
Bitcoin address data of 21 bytes becomes 16UwLL9Risc3QfPqBUvKofHmBQ7wMtjvM, 33 characters carrying a four-byte double SHA-256 checksum, so a mistyped character…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Ripple Base58 encoder & decoder
“Hello World” becomes JxErpTiA7PhnBMd in Ripple Base58, the XRP Ledger alphabet that starts r, p, s, h, n and skips 0, O, I and l, so your strings follow the…
A
Runs in your browser
⚙️ Developer UtilitiesFree
bcrypt Base64 encoder & decoder
“Hello, world!” becomes QETqZE6qGFbtakviGO in bcrypt Base64, the OpenBSD alphabet that starts with period and slash and never adds equals signs, the same form…
A
Runs in your browser
⚙️ Developer UtilitiesFree
OpenPGP Radix-64 encoder
“Hello, OpenPGP!” becomes the Radix-64 body SGVsbG8sIE9wZW5QR1Ah plus the checksum line =FPfi: the OpenPGP armor format, whose CRC-24 lets the receiver spot…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Git Base85 encoder
“hello” becomes the Git Base85 line EXk~0{ZvX%Q, where the leading E says the line holds five bytes: the dialect Git uses for binary patches, distinct from…
P
Runs in your browser
⚙️ Developer UtilitiesFree
basE91 encoder
basE91 packs text into 91 printable characters, denser than Base64 and with no padding: “Hello, world!” becomes >OwJh>}A"=r@@Y?F with Joachim Henke's original…
A
Runs in your browser
⚙️ Developer UtilitiesFree
Base94 encoder & decoder
“Hello, world!” becomes /P|?l:+>Nq\sr<+r in Base94, which uses every printable ASCII character from ! to ~ except the space, so each character carries more than…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Negabinary converter
13 is 11101 in negabinary, base −2, whose places alternate 1, −2, 4, −8 and 16, so every whole number, negative ones included, is written with only 0 and 1 and…
A
Runs in your browser
⚙️ Developer UtilitiesFree
Golden ratio base converter
2 becomes 10.01 in base φ, where each place is a power of phi, about 1.61803398875: every whole number gets a finite string of only 0 and 1, often with digits…
A
Runs in your browser
⚙️ Developer UtilitiesFree
Quaternary (base-4) converter
27 is 123 in base 4: each quaternary digit, from 0 to 3, holds exactly two bits, which is why base 4 suits DNA's four letters and two-bit codes.
A
Runs in your browser
⚙️ Developer UtilitiesFree
Senary base-6 converter
42 is 110 in base 6, the senary system with digits 0 to 5 and places worth 1, 6, 36 and 216, the radix of six-sided dice and place-value lessons.
S
Runs in your browser
⚙️ Developer UtilitiesFree
Baudot ITA2 encoder
“HI” becomes 10100 00110 in Baudot–Murray ITA2, the five-bit teleprinter code of Telex and radio teletype, with letter and figure shifts inserted automatically…
A
Runs in your browser
⚙️ Developer UtilitiesFree
BIP-39 mnemonic encoder
Sixteen zero bytes of entropy become “abandon” eleven times followed by “about”: BIP-39 turns 128 to 256 bits into 12 to 24 English words with a SHA-256…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Unicode bold italic text
“Hello World” becomes 𝑯𝒆𝒍𝒍𝒐 𝑾𝒐𝒓𝒍𝒅: each Latin letter is swapped for its Mathematical Bold Italic twin from Unicode, so the emphasis survives pasting…
P
Runs in your browser
⚙️ Developer UtilitiesFree
Book cipher
Hide a message inside a passage you share with someone: with a 13-word key, “quick fox river” becomes 2 4 12, and those numbers decrypt back to the same words.
S
Runs in your browser
⚙️ Developer UtilitiesFree
Brainfuck text encoder
Type “Hi” and get a ready-to-run Brainfuck program of 107 characters, made only of plus signs and print dots.
S
Runs in your browser
⚙️ Developer UtilitiesFree
BSD checksum calculator
The text “abc” gives a BSD checksum of 16556, or 40ac in hex, in 1 block: the same pair the old Unix sum command prints in BSD mode.
S
Runs in your browser
⚙️ Developer UtilitiesFree
Netherlands BSN check
Enter 12345678 and get check digit 2, so the full BSN is 123456782; or paste a nine-digit number to see whether it passes the Dutch eleven-test.
S
Runs in your browser
⚙️ Developer UtilitiesFree
C string escaper
A stray double quote, backslash or line break can break a C string; this tool turns Hello "world", a new line and line 2 into Hello \"world\"\nline 2, ready to…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Cyrillic Caesar cipher
With a shift of 3, “Привет, мир!” becomes “Тулезх, плу!”: each of the 33 Russian letters, Ё included, moves three places and wraps from Я back to А.
A
Runs in your browser
⚙️ Developer UtilitiesFree
CAS Registry Number check digit
Enter 7732-18 and get check digit 5, giving 7732-18-5, the CAS number of water; type 7732-18-6 instead and validation fails.
P
Runs in your browser
⚙️ Developer UtilitiesFree
Chaocipher
Encrypt WELLDONEISBETTERTHANWELLSAID with Byrne's classic starting disks and you get OAHQHCNYNXTSZJRRHJBYHQKSOUJY: both alphabets reshuffle after each letter…
S
Runs in your browser
⚙️ Developer UtilitiesFree
China resident ID check digit
Enter 11010519491231002 and get the check character X, so the full resident ID reads 11010519491231002X; or paste all 18 characters to see whether the last one…
S
Runs in your browser
⚙️ Developer UtilitiesFree
Ecuador cédula check digit
Enter 171003406 and get check digit 5, so the full cédula is 1710034065; or paste ten digits to see whether the last one fits the official modulo-10 rule.
P
Runs in your browser
⚙️ Developer UtilitiesFree
Unicode circled letters
Type Hello123 and get Ⓗⓔⓛⓛⓞ①②③: eight bubble characters that paste as plain text into usernames, stream titles and captions, with no special font.
S
Runs in your browser
⚙️ Developer UtilitiesFree
Romanian CNP check digit
Enter 180010122114 and get check digit 4, so the full CNP is 1800101221144; or paste all thirteen digits to see whether the last one fits the official…
P
Runs in your browser
⚙️ Developer UtilitiesFree
Brazil CNPJ check digits
Enter the base 112223330001 and get check digits 81, so the full CNPJ is 11222333000181; or paste 14 digits to confirm both trailing digits.
A
Runs in your browser
⚙️ Developer UtilitiesFree
Colemak QWERTY converter
Type hello with QWERTY habits on a Colemak keyboard and the screen shows hfiiy; this converter maps each letter to the character on the same physical key, in…
A
Runs in your browser
⚙️ Developer UtilitiesFree
Cologne phonetics encoder
Müller, Mueller and Muller all get the code 657, and Schmidt and Schmied share 862, so spelling variants of a German name land together.
P
Runs in your browser
No 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 — 7800+ 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.