UD5 Toolkit
Saponification Value Lookup – Online Oils & Butters
Search for the NaOH and KOH sap values of various oils. Reference for cold process soap makers.
Reference Guides - Cheat Sheets
99+ toolsSupplement Half‑Life Reference – Online Vitamin D, B12 Chart
Reference for how long common supplements stay in the body. Inform taking frequency.
Knot Strength Efficiency Guide – Online Visual Weakness Chart
Compare common knots by their efficiency percentage and residual strength. Interactive chart with animated diagrams.
Decibel Level Reference – Online Common Sound Examples
Interactive scale showing dB levels of everyday sounds with playable samples. Hearing safety.
Food Storage Shelf Life Directory – Online How Long Does It Last?
Look up storage times for pantry, fridge, and freezer items. Reduce food waste. Local database.
Moon Phase & Illumination – Online Exact Percent Tonight
Shows today's moon phase, age, and percent illuminated. Simple visual display. Works offline.
SDS Chemical Safety Lookup – Online Section Reference
Enter a common chemical name to see summary hazard pictograms and precautions. Quick reference.
Poison Control Reference – Online US Hotline & Ingredient Lookup
Displays the national poison control number and basic first steps for common household ingestions. Seek medical help immediately.
Bruise Color Timeline – Online Reference Healing Stages
Visual chart showing the typical colors a bruise goes through from red to yellow. Educational only.
Statute of Limitations Lookup – Online Reference by US State
Select a US state and legal category (debt, personal injury) to see typical time limits. Quick informational guide.
Seam Allowance Chart – Online Metric & Imperial Quick Ref
Visual reference for common seam allowances (1/4″, 5/8″, etc.) with actual size on screen. Essential sewing aid.
Blanket Size Chart – Online Crib, Throw, King Dimensions
Reference for standard blanket and afghan sizes in inches and cm. Perfect for knitters and crocheters.
Teething Symptoms Reference – Online Timeline & Relief Ideas
Understand teething order, typical symptoms, and safe relief methods. Charts and tips for new parents. Educational, not medical advice.
Companion Planting Guide – Online Garden Friend/Foe Checker
Select a vegetable and see its best companion plants and which to avoid. Visual grid with quick reference. Improve garden yield and health naturally.
Ingredient Substitution Finder - Online What to Use Instead
Search for common ingredient substitutions (e.g., buttermilk, egg, cornstarch). Quick reference for when you're missing something. Local data.
Meat Doneness Temperature Guide - Online Reference for Beef, Chicken, Pork
Select meat type and see USDA recommended internal temperatures for rare to well-done. Simple reference chart. Local, no upload.
UV Index Lookup - Online Current Sun Strength by City
Enter a city to get current UV index forecast using open data (with local caching). Understand sun protection needs. No personal location used.
Carabiner kN Rating Checker - Online Safety Converter
Convert carabiner strength from kN to kg/lbs and understand Major Axis vs Minor Axis markings. Quick educational reference for climbers.
Australia Public Holiday Checker - Online by State & Year
Select a state and year to see all public holidays. Works offline with built-in data. Plan your long weekends. Simple reference tool.
UK Tax Code Checker - Online Understand Your Code
Enter your UK tax code and see an explanation of what the numbers and letters mean. Simple educational reference. No data stored.
Paper Size Converter - Online A4, Letter, Legal Dimensions
See exact mm and inch dimensions of ISO A-series and US paper sizes. Visual comparison tool. Also calculates weight based on GSM and dimensions.
JavaScript Regex Cheatsheet - Online Interactive Pattern Reference
Interactive cheatsheet for JavaScript regular expressions with live examples. Click any token to see its explanation and test it on sample text immediately.
TLD & Domain Extension Lookup - Online All Endings
Search a complete list of all top‑level domains. See which still have availability. For brand naming. Static reference.
What Font is Used on a Website - Online Detector
Enter a URL and extract the font stacks and web font URLs used on that page. Quick typography research.
BMI Chart & Ideal Weight Table - Online Reference
Look at a color‑coded BMI table for your height and see the healthy weight range. Simple reference.
Sunrise Sunset Times - Online Any Location
Enter a city name or coordinates and see today's sunrise, sunset, and twilight times. Approximate algorithm. Local.
Week Number & Start/End Dates - Online ISO 8601
Enter any date and get its ISO week number, plus the start and end dates of that week. Quick reference.
Public Holidays Calendar - Online All Countries
Select a country and year to see every public holiday. Static data for major countries. Plan your vacations.
All Emojis Showcase - Online Browse & Copy Full Set
View every standard emoji in a searchable grid. Hover to see a larger preview. Click to copy. Updated with Unicode 16.
CSS Cursor Playground - Online Preview All Pointer Styles
Hover over tiles to see every CSS cursor value in action. Quick visual reference for choosing the right UI feedback.
Browser Font Stacks Explorer - Online Defaults Per OS
See which fonts map to generic families (serif, sans‑serif, monospace) on different operating systems. A handy reference.
Tailwind Color Palette Viewer - Online See All 22 Palettes
Browse every Tailwind default color palette side by side. Click any shade to copy the hex or class. For rapid design.
Currency Code to Symbol Converter - Online ISO 4217 Lookup
Enter a three‑letter currency code like USD or EUR and instantly see the corresponding symbol and number of decimals. Quick developer reference.
Hex Color to Name Finder - Online Identify Closest Hue
Paste a hex code and get the closest official CSS color name and a list of similar Pantone-like shades. Design reference.
Color to Emotion Reference - Online Psychology Quick Guide
Click any color to see common emotional associations and cultural meanings. Quick design reference.
HTTP Headers Reference - Online Search & Descriptions
Browse a searchable list of standard HTTP request and response headers with explanations. Quick dev help.
HTTP Status Code Reference - Online Search & Meanings
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
CanIUse Quick Search - Online Browser Support Lookup
Offline‑first search of the CanIUse database. Type a CSS property, HTML element, or API and see global support percentages. Fast.
HTML Color Input Explorer - Online Native Picker & Events
Use <input type='color'> and see its change events and value in hex. Understand the native color picker. Quick demo.
<datalist> Autocomplete Tester - Online ComboBox Demo
See how <datalist> works across browsers. Test with many options. Copy the minimal markup. Simple native autocomplete.
HTML Symbol Entities Cheatsheet - Online Search & Copy
Search and copy HTML entities for arrows, math, currency, and symbols. See the glyph and code. Fast reference.
User Agent Style Sheet Explorer - Online See Default CSS
Browse the built‑in styles that browsers apply to HTML elements. Understand why your page looks different. Static reference.
Historical Figures Timeline - Online Interactive Life Spans
See famous people's life spans on a draggable timeline. Compare who was alive at the same time. Educational fun.
World Capitals List & Search - Online Reference
Search by country or city to find the capital. Full offline list. Useful for homework or travel planning. Static data.
Yoga Pose Library - Online Browse & Learn Asanas
Searchable catalog of yoga poses with illustrations, instructions, and benefits. For beginners and teachers. Static resource.
Time Zone Offset Lookup - Online UTC ± Hours City
Search a city or country and see its current UTC offset, DST status, and abbreviation. Quick reference for scheduling.
CSS Cursor Demo - Online Preview All Pointer Styles
Hover over tiles to see every CSS cursor value in action. Quick visual reference for choosing the right UI feedback.
Named CSS Colors Explorer - Online Preview All 148
Grid of all 148 named CSS colors. Hover to see detail, click to copy the name or hex. Essential frontend reference.
HTML Input Type Playground - Online Test All Fields
See every HTML input type in one page. Check browser support and styling. Copy sample markup. Quick frontend reference.
System Colors Cheatsheet - Online All CSS System Colors
View all CSS system colors (Canvas, ButtonFace, GrayText) as swatches. Click to copy. For forced‑colors adaptation.
Animatable CSS Properties Cheatsheet - Online Reference
Search and filter all CSS properties that can be animated. See value types and example keyframes. Quick dev reference.
Random Flower Name & Meaning - Online Botany Fun
Generate a random flower name along with its symbolic meaning and an illustrated color swatch. Local.
Units of Measurement Reference - Online Quick Guide
Search and browse a comprehensive table of SI units and common imperial conversions. For students and engineers.
Currency Symbol Lookup - Online Find $ € ¥
Search by country or currency name to find its symbol and code. Quick static reference for international business.
Day of Year Calculator - Online Ordinal Date
Find out what day number of the year any date is (1‑366). Also shows days remaining. Simple reference.
Acronym Expander - Online Find What It Stands For
Enter an acronym and see its most common full forms. Static dictionary. No internet needed after load.
Random English Word - Online Dictionary Mini
Click to see a random English word with its definition and an example sentence. Expand your vocabulary daily.
Random Bible Verse Generator - Online Daily Scripture
Get a randomly selected Bible verse with its reference. Uplifting and quick. Public domain text.
Random Science Fact - Online Daily Trivia
Click for a fascinating, verified science fact. From biology to physics. Expand your knowledge. Lightweight and static.
Color Name to Hex - Online Official CSS Colors
Type a CSS color name like 'tomato' or 'mediumseagreen' and instantly get its hex code and preview. Complete named colors list.