UD5 Toolkit
Country Outline Quiz - Online Identify by Shape
A silhouette of a country appears; type the name. Timed guesses. Great for geography buffs.
Country Flag Quiz by Shape - Online Guess the Nation
Country Flag Quiz by Shape
Guess the nation by its silhouette, then pick the right flag!
Score: 0
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Frequently Asked Questions
It's a geography game where you see a country's outline (shape) and must choose its national flag from several options. It tests both map recognition and flag knowledge.
Our online quiz features a rotating set of 10 diverse nations, each with a distinctive shape like Italy, Japan, Australia, Brazil, and more. New rounds shuffle the order for a fresh experience.
Yes, skipping is optional. The "Skip" button reveals the correct answer and moves to the next question without awarding a point.
Practice with silhouette games regularly, study world maps with clear borders, and associate each outline with its location. Our quiz helps build that visual memory.
Absolutely! It's a free online tool with no registration required. Just visit and start guessing flags.
Country Silhouette Quiz - Online Identify Nation by its Outline
A country border shape appears, guess the nation. Multiple choice. Score tracking. Learn geography visually. Local SVG shapes.
US States & Capitals Quiz - Online Geography Game
Test your knowledge: given a state name, pick its capital. Timed, with scoreboard. Learn all 50. No login.
US States & Capitals Quiz - Online Geography Memory Game
Interactive quiz to learn all 50 US state capitals. Choose mode: capital to state or state to capital. Map highlight available. Works offline.
ISO Currency Code Lookup - Online Search by Country
Find the three‑letter currency code (USD, EUR, JPY) for any country. Also lists currency symbol and name. Static.
Tetris Game - Online Classic Block Puzzle
Enjoy classic Tetris in your browser. Rotate, move, and drop tetrominoes. Clear lines and score. Fully local JavaScript.
CSS Selectors Game - Online Train with Restaurant Menu
Practice CSS selectors by targeting plates on a virtual restaurant table. 30+ levels. Perfect for beginners.
CSS Grid Overlap Demo - Online Layered Layout Techniques
Place multiple grid items into the same cells to create overlapping layouts. Learn the technique visually. Copy code.
CSS Grid Alignment Playground - Online Place & Align Tracks
Practice aligning grid items and tracks with the place‑items, align‑content, and justify‑content properties. Visual guide.
Drum Pattern Sequencer - Online Create Beats & Play
Lay down a beat on a grid sequencer for kick, snare, and hi-hat. Play, loop, and adjust tempo. All sound via Web Audio API.
Connect Four - Online PvP & AI Board Game
Play the classic Connect Four in your browser against a friend or CPU. Drop discs to get four in a row. Clean SVG board, local logic.
CSS Baseline Grid Overlay - Online Typography Rhythm
Generate a CSS background that shows a baseline grid. Adjust line‑height and offset. Perfect for aligning text.
Subnetting Practice Quiz - Online CIDR & IP Drills
Randomly generated subnetting questions. Calculate network address, broadcast, and usable range. For CCNA prep.
Blood Pressure Log - Online Track & Chart Readings
Record daily systolic/diastolic readings and pulse. See a trend chart. All data saved locally in your browser.
position: sticky Playground - Online Sticky Headers & Footers
Scroll a container and see how sticky elements behave. Adjust top, bottom, and scroll margins. Copy the code.
CSS Grid Baseline Alignment Demo - Online Typography Sync
See how align‑items: baseline works in grid to align different font sizes on the same baseline. Visual guide.
Mood Color Journal - Online Track Days with Hues
Pick a color for each day's mood and see a month‑at‑a‑glance heatmap. Data stored locally. A private emotional log.
Hex Color Clock - Online Time Displayed as Background Color
Every second, the background color changes to the hex code corresponding to the current time (HHMMSS). A beautiful, ever‑changing clock.
Sleep Log Tracker - Online Record Hours & Quality
Log the hours you slept each night and rate the quality. See a weekly bar chart. Local storage.
SVG Path D to Array – Online Extract Coordinates
Paste an SVG path d string and parse it into an array of commands and coordinates. Useful for animations.
WHOIS Domain Lookup – Online Simple Registration Check
Enter a domain and see public WHOIS info via a free API with rate limiting. Quick domain check.
Developmental Milestones Quiz – Online Ages & Stages Fun
Answer questions and see typical milestones for 0-5 years. Educational reference for parents. Not a diagnostic tool.
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.
HTML Headings Outline Generator - Online From Webpage
Enter a URL and see a nested list of all headings (h1‑h6). Check your document structure for SEO and accessibility. Pure fetch.
Base58 Encoder & Decoder - Online Bitcoin-Style Address Tool
Encode or decode data to/from Base58 (Bitcoin alphabet). Useful for cryptocurrency address generation testing. Fully local, no data sent.
Image to SVG Path - Online Trace Bitmap to Vector
Convert a simple black and white image into an SVG path using edge detection. Extract vector outlines. Local canvas processing.
Heading Structure Visualizer - Online Document Outline Check
Paste an URL or HTML and see the h1‑h6 hierarchy as a tree. Detect skipped levels and improve accessibility. Client‑side.
Virtual Corkboard - Online Sticky Notes & Memos
Create colorful digital sticky notes on a corkboard. Drag, edit, and delete. Notes persist in local storage. No login.
Simple Time Tracker - Online Project & Task Hours Logger
Start/stop timer per project to log hours. See daily and weekly totals. Data stays in localStorage. Export summary as CSV. No account needed.
SSML Marker Demo - Online TTS Events & Highlights
Use SSML <mark> tags to fire events during TTS. See text highlighted as it is spoken. Understand speech synthesis timing. local.