Logo Guessing Game - Online Identify Famous Brand Logos
See a cropped or simplified brand logo and guess the company. Hints available, score track. Local fun, no copyright infringement.
UD5 Toolkit
Hop into the pond and master CSS Flexbox visually. Adjust properties and watch the frogs move!
.pond {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
align-content: stretch;
gap: 16px;
}
display: flex; justify-content: center; align-items: center;. This is one of the most popular uses of Flexbox – easy vertical and horizontal centering without old hacks.
flex-wrap: wrap to see it in action.
See a cropped or simplified brand logo and guess the company. Hints available, score track. Local fun, no copyright infringement.
Design a layout where nested grids share track sizes with their parent via subgrid. Copy the complete CSS.
Paste your CSS and see warnings for properties that have limited browser support. Links to CanIUse. Modernize safely.
Create complex linear gradients with any number of color stops, exact angles, and length units. Live preview and CSS code.
See a random color and type its name. Score based on accuracy. Fun for designers. Local.
Style underlines, overlines, and strike-throughs with colors, wavy styles, and thickness. Modern CSS text‑decoration.
Design a button or card that glows on hover. Adjust shadow color, spread, and transition. Copy the CSS. Rich UI.
Create a realistic letterpress (debossed) text effect using CSS text‑shadow and background. Adjust depth and light direction. Copy code.
Generate a subtle noise/grain texture as a CSS background pattern. Adjust opacity and size. For that film look.
Create a customizable checkerboard or grid background using pure CSS gradients. Adjust cell size and colors. Copy the code.
Upload two images and apply CSS blend modes (multiply, screen, overlay, etc.). See the result and copy the filter CSS. Pure frontend.
Create a glowing or rotating border animation around an element. Copy the CSS keyframes. Pure CSS magic.
Create a custom HTML/CSS progress bar with percentage, colors, and animation. Copy the code. Modern UI element.
Try to draw a perfect circle freehand. Score based on roundness. Fun and addictive. No data sent.
Design a realistic neon sign text with multiple layers of glow. Copy the CSS and HTML. Perfect for headers.
Random world flags shown; pick the correct country name from four choices. Score and streak. Learn geography.
Fetch a website's CSS and extract :root custom properties (‑‑color) to reveal its design token palette. For learning and inspiration.
Keep a virtual pet alive by feeding, playing, and cleaning. Its state persists in localStorage. Come back or it gets sad.
Recreate the target CSS linear gradient by adjusting stops and colors. A unique game for front‑end developers to master gradients.
The original arcade Pong recreated in HTML5. Play against AI or local two‑player. Score up to 11 and win. Pure retro fun.
Watch a color sequence and click the same pattern. Gets longer each round. Test and improve your working memory. All local.
Repeat the growing color sequence. How far can you go? Classic memory game with sound and animations.
Control a lunar module and try to land softly on the moon. Manage fuel and thrust. Classic arcade physics. Canvas.
Enjoy classic Tetris in your browser. Rotate, move, and drop tetrominoes. Clear lines and score. Fully local JavaScript.
Create a virtual scratch card with a hidden message or prize. Send the link; recipient scratchs with mouse/touch. Canvas-based.
Browse and search all Font Awesome 6 icons with preview, class name, and unicode. Copy the HTML snippet. Perfect for web developers.
A complete, searchable list of all 140+ named HTML/CSS colors with their hex codes and color previews. Click to copy code. Essential web reference.
Visually experiment with Flexbox container and item properties. See the layout update in real time and copy the CSS. Learn by doing, fully interactive.
Easily create asymmetric border radius values and preview the result. Copy the generated CSS instantly. All interactively and browser-based.
Beautify and format your CSS stylesheets instantly. Organize, minify, or prettify CSS code for better readability. Processed securely on client-side.