UD5 Toolkit
Garden Insect Pest Identifier – Visual Damage & Symptoms
Identify common garden pests by the damage they leave on leaves, stems, and fruits. Browse photos and descriptions to find organic control methods.
Reference Guides - Cheat Sheets
99+ toolsMusical Scale Finder – Show Me a Scale on Piano
Choose a root note and scale type to see the scale notes highlighted on a piano keyboard. Covers major, natural minor, harmonic minor, and modes.
World Voltage & Frequency Reference – 110V vs 230V
Check the standard voltage and frequency for any country. Ensure your hair dryer, charger, or appliance is compatible before you plug it in abroad.
Cordless Tool Battery Compatibility Checker – Online Brand Matrix
Check if your brand's batteries fit other tools or if aftermarket adapters exist. A simple matrix reference for DIYers.
Ringworm Healing Timeline – Online Photo Reference
What does healing ringworm look like? Visual week‑by‑week reference to avoid premature treatment stop.
Crochet Stitch Swatch Library – Visual Guide to 50+ Stitches
Browse a library of crochet stitch swatches with photos and written instructions. Filter by difficulty and stitch type (textured, lacy, solid).
Dehydrator Time & Temperature Guide – Fruit, Meat, Herbs
Look up the recommended dehydrating times and temperatures for fruits, vegetables, meats for jerky, and herbs. Get tips for checking doneness and storage.
Candy Making Temperature Guide – Thread to Hard Crack Stages
Select a candy type (fudge, caramel, toffee) to see the exact temperature range and a description of the cold water test for that stage.
Is Today a Public Holiday? – Global Checker
Select a country and see if today or any date is a public holiday. Plan international calls and deadlines more effectively.
Seasonal Fruit & Vegetable Calendar – What’s Fresh Now?
Select a month and region to see which fruits and vegetables are in season. Helps you shop smarter, save money, and enjoy better‑tasting produce.
Soil pH Preference Chart – Find the Range for 100+ Plants
Search any vegetable, flower, or shrub to see its preferred soil pH range. Companion planting based on soil compatibility.
Piano Chord Dictionary – Click a Root & Type to See Notes
Select a root note and chord type (major, minor, dim, aug, 7th, etc.) to see the keys highlighted on a piano. Inversions and fingering suggestions included.
Interactive Beer Flavor Wheel – Identify Off‑Flavors
Click through an interactive beer flavor wheel to see descriptions of common malt, hop, yeast, and off‑flavor notes. A handy reference for homebrewers and judges.
Aromatherapy Blend Finder – Essential Oil Combos by Need
Select a desired effect (relaxation, focus, energy) and get a suggested essential oil blend with drop ratios. Perfect for diffusers and DIY massage oils.
USDA Plant Hardiness Zone Lookup – By Zip Code & Country
Find your USDA plant hardiness zone by entering your zip code or country. Know which plants will survive your winter before you buy or plant.
Aquarium Algae Identifier – Green Water, Hair, BBA & More
Compare your tank's algae to photos of common types. Get the cause (light, nutrients) and recommended removal or livestock solutions.
Crochet Hat Sizing Chart – From Preemie to Adult
Look up head circumference and hat height for all sizes from preemie to large adult. Includes recommended crown diameter increases for top-down crochet hats.
Interactive Laundry Symbol Decoder – Click to Learn Meaning
Click on a laundry symbol (wash tub, triangle, iron, circle) and see a plain‑English explanation. No more ruined clothes from guessing care labels.
Emoji Search Engine – Find Emojis by Meaning or Word
Search for emojis by describing how they look or what they mean. Results are ranked by relevance, and you can copy any emoji with one click.
HTML Character Entity Lookup – Search by Name or Symbol
Search over 1,400 HTML character entities by name, number, or just by typing a symbol. Click to copy the entity code for your markup.
USD Inflation Calculator – Historical Buying Power
Find out what a dollar amount from a past year is worth today, or vice versa. Uses official US CPI data to show the true impact of inflation over time.
Pollen Calendar Reference – Online Month‑by‑Month Plant Guide
Select your region and see a static calendar of common pollen seasons. Informative for allergy sufferers.
Ham Radio Callsign Lookup – Country & Region Identifier
Enter an amateur radio callsign prefix to see which country or region it belongs to. Includes the ITU and CQ zones for radio operators.
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.
Piano Key Frequency Finder – Note to Hz & MIDI Number
Select a piano key to see its frequency in Hz and MIDI note number. Great for tuning, synthesis, or music theory exploration with interactive keyboard.
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.
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.
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.
Browser Feature Compatibility Lookup – Can I Use Data
Search any HTML, CSS, or JavaScript feature and instantly see browser support percentages and version notes. Offline‑capable with embedded data.
World Plug & Socket Type Guide – Travel Adapter Reference
Look up plug types and sockets used in every country. See images of Type A through Type N, and find out which travel adapter you need for your next trip.
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.
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.
HTTP Headers Reference - Online Search & Descriptions
Browse a searchable list of standard HTTP request and response headers with explanations. Quick dev help.
Color to Emotion Reference - Online Psychology Quick Guide
Click any color to see common emotional associations and cultural meanings. Quick design reference.
<datalist> Autocomplete Tester - Online ComboBox Demo
See how <datalist> works across browsers. Test with many options. Copy the minimal markup. Simple native autocomplete.
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.
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.
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.
Sunrise Sunset Times - Online Any Location
Enter a city name or coordinates and see today's sunrise, sunset, and twilight times. Approximate algorithm. Local.
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.
Yoga Pose Library - Online Browse & Learn Asanas
Searchable catalog of yoga poses with illustrations, instructions, and benefits. For beginners and teachers. Static resource.
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.
Public Holidays Calendar - Online All Countries
Select a country and year to see every public holiday. Static data for major countries. Plan your vacations.
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.
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.
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.
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.
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.
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.
SDS Chemical Safety Lookup – Online Section Reference
Enter a common chemical name to see summary hazard pictograms and precautions. Quick reference.
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.
HTTP Status Code Reference - Online Search & Meanings
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
Pet Name Suggestions - Online Random Dog/Cat Name List
Browse hundreds of curated pet names or get a random suggestion. Filter by gender or species. Name your new friend.
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.
File Extension Database Lookup - Online Search Type
Search for any file extension to see its full name, MIME type, and description. Covers thousands of entries. Static data.
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.
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.
Periodic Table Search - Online Quick Element Info
Type an element name or symbol and instantly see its key properties (atomic mass, group, electronegativity). Quick reference.
Word Origin Dictionary - Online Quick Etymology Lookup
Enter an English word to get a quick etymology. From a curated list of common roots. Learn language history.