CSS Columns Masonry Generator - Online Simple Layout
Build a responsive masonry layout using the column‑count property. No JavaScript. Copy the minimal CSS.
UD5 Toolkit
Visual timeline editor for crafting smooth CSS animations. Drag or click to add keyframes, tweak properties, and copy the result.
@keyframes animation-name {
0% { }
100% { }
}
animation: animation-name duration timing-function delay iteration-count direction fill-mode; to any element. You can customize the animation name in the code.-webkit- prefixes manually, but it's rarely necessary today.Build a responsive masonry layout using the column‑count property. No JavaScript. Copy the minimal CSS.
Toggle browser‑generated bold and italic when a real italic is missing. Understand and control font fallback rendering.
Build a cron expression using plain English toggles and see its visual timeline. No memorization needed.
Fill in a component name and generate a complete Stencil.js component with TSX, CSS, and test files. Quick start.
Create half‑hour time blocks for your day. Drag to resize and reorder. Export as image. All local.
Compare standard keyboard layouts side-by-side. Click keys to see characters. Useful for learning alternative layouts.
Paste a corpus of text and generate new random sentences that mimic the style using Markov chains. Local only.
Toggle scrollbar‑gutter: stable to reserve space for the scrollbar and avoid content jumps. Visual demo with two columns.
Generate a plausible technical blog post title. Useful for practice writing or placeholder content. All local.
Take a normal sentence and reverse the word order. Sound like Yoda or just play with language.
Fill in daily work hours and tasks, and generate a printable PDF timesheet. Clean, professional layout. Local.
Type on your QWERTY keyboard and see the text as if you were on a Dvorak layout. Helps learn Dvorak without switching.
Enter a cron expression and get a plain English description of when it runs. Understand complex schedules instantly. Developer friendly.
Paste a git log and generate a polished changelog grouped by type (feat, fix, etc.). Follows Keep a Changelog format. Local.
Describe cron schedule expressions in plain English and test future execution times. Indispensable for DevOps and backend developers. Local analysis.
Acquire and release locks across tabs. Prevent race conditions in IndexedDB or localStorage. Visual queue and lock state.
Break a large block of text into a numbered list of sentences. Useful for analysis or translation. Local processing.
Demonstrate how to yield heavy computation to user input using the isInputPending API. Keep UI responsive.
Simulate different cache strategies (Cache First, Network First, Stale‑While‑Revalidate) and see responses. Learn offline patterns.
Add a warm, orange light leak to your photo for a vintage film look. Adjust intensity and angle. Instant download.
Start recording and watch for Long Tasks that block the main thread. See task duration and attribution. Improve Interaction to Next Paint.
Visually configure scroll‑snap containers and items. Adjust alignment, stop behavior, and padding. Copy the clean CSS instantly.
Generate the MD5 hash of any text string. For quick integrity checks. All local computation.
Create complex linear gradients with any number of color stops, exact angles, and length units. Live preview and CSS code.
Format a list of Q&A pairs and export as a CSV ready for Anki import. Simple line‑based template. Local.
Style underlines, overlines, and strike-throughs with colors, wavy styles, and thickness. Modern CSS text‑decoration.
Generate a random medieval occupation with a short description. For NPCs or historical curiosity. Local list.
Design a fully styled scrollbar with colors, width, radius, and hover effects. Supports both ::-webkit‑scrollbar and Firefox scrollbar‑width.
Create a realistic letterpress (debossed) text effect using CSS text‑shadow and background. Adjust depth and light direction. Copy code.
Generate a realistic‑sounding dinosaur name and see a fun description. Perfect for kids and writers.