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BMI Calculator
Calculate body mass index in metric or imperial units.
HEX to RGB Converter
Convert HEX colour codes to RGB and HSL, and back again.
Reading Time Calculator
Turn a word count into how long the text takes to read or say.
Review Response Generator AI
Replies to positive, mixed and negative reviews, AI or instant.
Product Name Generator AI
Product name ideas from a keyword, AI or instant.
Email Marketing ROI Calculator
Email ROI plus revenue per email sent and per subscriber.
Content ROI Calculator
Content ROI with cost per piece and months to payback.
Tracking Link Generator
Add any custom tracking parameters to a URL, safely.
Newsletter Name Generator AI
Names for an email newsletter, AI-written or instant.
Average Order Value Calculator
Work out AOV from total revenue and number of orders.
Email Syntax Checker
Test an address against the RFC rules, rule by rule.
Invoice JSON Formatter
Format, minify and tidy invoice JSON — with the errors located and explained.
Invoice to XML
Turn an invoice into XML — plain and readable, or standards-compliant UBL or CII.
Invoice JSON Validator
Validate invoice JSON: syntax errors located, fields and types checked, and the totals recomputed.
Invoice Draft Stamp Generator
Mark an invoice as a draft so nobody pays or files it by mistake.
Invoice Reminder Generator
The right reminder for how late it is, from a courtesy note to a final notice.
Invoice Profit Calculator
What an invoice actually earns after costs, fees, tax and the time it took to get paid.
Final Invoice Generator
The closing invoice: full price, deposits deducted, balance due.
Wholesale Invoice Generator
Trade pricing, case quantities and payment terms on a wholesale invoice.
Export Invoice Generator
A zero-rated export invoice with Incoterms, port details and shipping marks.
Tax Invoice Generator
A compliant tax invoice with registration numbers, tax breakdown and amount in words.
Eyedropper Color Picker
Pick a colour from anywhere on your screen.
Animated Gradient Generator
Build a moving gradient background with the keyframes included.
Contrast Grid
Score every colour in a palette against every other one.
Color Palette Visualizer
See your palette as a real interface instead of swatches.
Complementary Color Finder
Find the true complement of any colour, and the near ones.
Color Shades Generator
Build tints, shades and tones from one colour.
CSV to GeoJSON Converter
Turn a spreadsheet of coordinates into GeoJSON points for any mapping tool.
KML to GPX Converter
Turn Google Earth placemarks and paths into a GPX file for your watch or GPS.
Color Name to HEX Converter
All 148 CSS colour names as HEX — and the nearest name for any colour.
CMYK to RGB Converter
Turn CMYK print percentages into RGB and HEX for screens.
Audio Bitrate Converter
Re-encode audio at a new bitrate, sample rate or format — with an honest warning.
VTT to SRT Converter
WebVTT captions back to SubRip, for players and editors that need .srt.
Text to PDF Converter
Paste text, get a properly typeset PDF — page size, margins and numbering.
Word to PDF Converter
Turn a .docx into a clean PDF in the browser — headings, lists and tables intact.
Properties to JSON Converter
Java .properties into nested JSON — \u escapes, continuations and list keys included.
SQL to CSV Converter
Pull the rows out of a .sql dump — INSERT statements or pg_dump COPY — straight to CSV.
CSV to YAML Converter
Spreadsheet rows into YAML records — a list, keyed by a column, or under a top-level key.
CSV to TSV Converter
Comma-separated to tab-separated, with the tabs and line breaks inside fields handled.
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