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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7554ready-made tools
6channels
1API & key
$0.002per call, from
The full catalog
Search or filter by category. Every capability is its own endpoint with a published price.
⚙️ Developer UtilitiesFree
Convert hex color to RGB values from 0 to 255
M
POST /color/hex-to-rgb$0.002⚙️ Developer UtilitiesFree
Convert HSL to RGB
get red, green and blue values 0–255
B
POST /color/hsl-to-rgb$0.002⚙️ Developer UtilitiesFree
Perceived brightness calculator
classify an RGB color as light or dark
K
POST /color/luminance-perceived$0.002⚙️ Developer UtilitiesFree
Material Design palette generator
create shades 50 to 900
B
POST /color/material-palette-generate$0.002⚙️ Developer UtilitiesFree
Lookup color name from hex
find the closest CSS color
F
POST /color/name-lookup$0.002⚙️ Developer UtilitiesFree
Estimate the nearest Pantone-style color family from RGB
R
POST /color/pantone-nearest-estimate$0.002⚙️ Developer UtilitiesFree
Seeded random color palette generator
repeatable hex colors
F
POST /color/random-palette-seeded$0.002⚙️ Developer UtilitiesFree
Convert RGB to CMYK
accurate percentage calculator
M
POST /color/rgb-to-cmyk$0.002⚙️ Developer UtilitiesFree
Convert RGB color to hex
get a 6-digit color code
F
POST /color/rgb-to-hex$0.002⚙️ Developer UtilitiesFree
Convert RGB to HSL
hue, saturation and lightness
K
POST /color/rgb-to-hsl$0.002⚙️ Developer UtilitiesFree
Convert color temperature to RGB
Kelvin to RGB calculator
K
POST /color/temperature-kelvin-to-rgb$0.002⚙️ Developer UtilitiesFree
Generate a triadic color palette from any hex color
M
POST /color/triadic-palette$0.002🗂️ Data & FilesFree
Validate a credit card number with the Luhn checksum
F
POST /data/credit-card-luhn-validate$0.002🗂️ Data & FilesFree
Convert a cron schedule to a readable list of upcoming run times
B
POST /data/cron-to-readable$0.002🗂️ Data & FilesFree
Compute CSV column statistics
mean, median and standard deviation
R
POST /data/csv-column-stats$0.002🗂️ Data & FilesFree
Validate CSV against a column schema
find row and type errors
B
POST /data/csv-validate-schema$0.002🗂️ Data & FilesFree
Detect CSV delimiter
identify comma, semicolon, tab or pipe
R
POST /data/detect-csv-delimiter$0.002🗂️ Data & FilesFree
JSON object diff
find added, removed and changed keys
K
POST /data/diff-json-objects$0.002🗂️ Data & FilesFree
Convert Excel column letters to numbers and numbers to letters
K
POST /data/excel-column-letter-convert$0.002🗂️ Data & FilesFree
Flatten nested JSON to table with dot-notation keys
B
POST /data/flatten-nested-json$0.002🗂️ Data & FilesFree
Validate IBAN format, country length, and checksum
K
POST /data/iban-validate$0.002🗂️ Data & FilesFree
Validate an IPv4 address
check every octet
K
POST /data/ipv4-validate$0.002🗂️ Data & FilesFree
Validate and convert ISBN-10 and ISBN-13 checksums
R
POST /data/isbn-validate-convert$0.002🗂️ Data & FilesFree
Validate JSON Against Schema
Find Every Violation
R
POST /data/json-schema-validate$0.002🗂️ Data & FilesFree
Format and normalize a MAC address to uppercase colon notation
R
POST /data/mac-address-format$0.002🗂️ Data & FilesFree
Merge two CSV files on a key
left join and find unmatched rows
K
POST /data/merge-csv-on-key$0.002🗂️ Data & FilesFree
Base64 Encode and Decode Text
Standard or URL-Safe
F
POST /data/mime-base64-encode-decode$0.002🗂️ Data & FilesFree
Format an international phone number by country
K
POST /data/phone-number-format$0.002🗂️ Data & FilesFree
Validate postal code format by country
F
POST /data/postal-code-validate$0.002🗂️ Data & FilesFree
Random sample CSV rows with a seed
reproducible CSV sampler
B
POST /data/random-sample-rows$0.002🗂️ Data & FilesFree
Redact common PII patterns in text
emails, phones and card numbers
R
POST /data/remove-pii-patterns$0.002🗂️ Data & FilesFree
Batch slugify a list of titles with unique URL slugs
F
POST /data/slugify-batch$0.002🗂️ Data & FilesFree
Unflatten dot keys to nested JSON online
F
POST /data/unflatten-to-json$0.002🗂️ Data & FilesFree
Check VAT number format by EU country
B
POST /data/vat-number-format-check$0.002⚙️ Developer UtilitiesFree
Columbus Day date calculator
Indigenous Peoples' Day free
P
POST /date/columbus-day-us$0.002⚙️ Developer UtilitiesFree
Juneteenth date calculator
federal observed day free
P
POST /date/juneteenth-observed$0.002⚙️ Developer UtilitiesFree
MLK Day date calculator
Martin Luther King Jr. Day free
P
POST /date/mlk-day-us$0.002⚙️ Developer UtilitiesFree
Presidents' Day date calculator
Washington's Birthday free
P
POST /date/presidents-day-us$0.002⚙️ Developer UtilitiesFree
Minify CSS code and measure the size reduction
M
POST /dev2/minify-css$0.002⚙️ Developer UtilitiesFree
Compute an exponential backoff schedule for retries
K
POST /dev2/retry-backoff-schedule$0.002📄 Documents & PDFFree
Business card layout generator
calculate text regions
B
POST /doc/business-card-layout$0.002📄 Documents & PDFFree
Generate a Certificate of Completion Online
F
POST /doc/certificate-generate$0.002📄 Documents & PDFFree
Generate a cover letter draft from your key qualifications
K
POST /doc/cover-letter-generate$0.002📄 Documents & PDFFree
Generate a credit note document from an invoice
F
POST /doc/credit-note-generate$0.002📄 Documents & PDFFree
Generate a job offer letter template from candidate and salary details
K
POST /doc/employee-offer-letter$0.002📄 Documents & PDFFree
Event program schedule generator
calculate session end times and overlaps
R
POST /doc/event-program-generate$0.002📄 Documents & PDFFree
Generate an invoice document with calculated totals
M
POST /doc/invoice-generate$0.002📄 Documents & PDFFree
Generate a meeting minutes template with decisions and action items
K
POST /doc/meeting-minutes-template$0.002📄 Documents & PDFFree
NDA Clause Checklist Generator
Mutual or One-Way
M
POST /doc/nda-clause-checklist$0.002📄 Documents & PDFFree
Generate a Non-Compete Clause Reasonableness Checklist
B
POST /doc/non-compete-checklist$0.002📄 Documents & PDFFree
Generate a packing slip
no-price shipping document
R
POST /doc/packing-slip-generate$0.002📄 Documents & PDFFree
Generate a press release template
structured inverted-pyramid format
R
POST /doc/press-release-template$0.002📄 Documents & PDFFree
Generate a Privacy Policy Checklist for GDPR and CCPA
B
POST /doc/privacy-policy-checklist$0.002📄 Documents & PDFFree
Generate a Project Charter Template from Objectives and Milestones
K
POST /doc/project-charter-template$0.002📄 Documents & PDFFree
Generate a purchase order document with calculated totals
M
POST /doc/purchase-order-generate$0.002📄 Documents & PDFFree
Generate a Receipt Document with Itemized Totals
F
POST /doc/receipt-generate$0.002📄 Documents & PDFFree
Generate a Reference Letter Template with Achievement Prompts
M
POST /doc/reference-letter-template$0.002📄 Documents & PDFFree
Generate a structured rent receipt for a rental payment
K
POST /doc/rent-receipt-generate$0.002📄 Documents & PDFFree
Rewrite a resume bullet point with action, task and results
R
POST /doc/resume-bullet-improve$0.002📄 Documents & PDFFree
Generate an RFP response checklist by requested section
F
POST /doc/rfp-checklist-generate$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.