UD5 Toolkit
Image Sitemap Generator - Online XML for Photos
Paste a list of image URLs and generate a valid Google Image Sitemap XML. Essential for photography sites.
Dynamic OG Image Generator - Online Create Social Cards
Customize Card
Frequently Asked Questions
An OG image is the visual preview that appears when you share a link on social platforms like Facebook, LinkedIn, Twitter, and messaging apps. It helps attract clicks and gives a professional first impression of your content.
Custom cards increase engagement, improve brand recognition, and make your content stand out in crowded feeds. Without a proper OG image, platforms use random or generic thumbnails, which can hurt click-through rates.
Facebook/LinkedIn prefers 1200×630 pixels (1.91:1 ratio). Twitter/X cards work best at 1200×675. Instagram square posts are 1080×1080. This generator offers all three popular dimensions.
Absolutely! The tool creates original images based on your text and color choices. You own the output and can use it for any purpose without attribution.
Everything happens in your browser using HTML5 Canvas. No uploads, no server rendering – your data stays private and the tool works offline.
Responsive Images srcset Generator - Online
Upload multiple sizes of the same image and generate the complete srcset and sizes attributes. For perfect responsive performance.
Lorem Pixel Image Generator - Online Placeholder Photo Service
Generate placeholder images with custom dimensions, background color, and text. Supports SVG and raster output. Perfect for wireframing and mockups.
Responsive Image CSS - Online Art Direction & Srcset
Upload an image at multiple widths and generate a complete <picture> or <img srcset> snippet. Modern web performance.
Default Wi‑Fi Password Calculator - Online ISP Router Keygen
Enter a router's MAC address or serial and generate the common default WPA passphrase for major ISP brands. Educational purpose only.
Shadcn/UI Theme Builder - Online Custom CSS Variables
Pick colors for the shadcn/ui design system and generate the complete CSS variable theme file. Copy into your project.
Image FFT Visualizer - Online See Frequency Domain
Upload an image and see its 2D FFT magnitude and phase. Learn how image filtering works. Educatinal tool. Canvas.
Emoji to Image Converter - Online Download Emoji as PNG
Pick any emoji and download it as a high‑resolution PNG image with transparent background. For social media or icons.
Text to Anki CSV - Online Flashcard Converter
Format a list of Q&A pairs and export as a CSV ready for Anki import. Simple line‑based template. Local.
Text Decoration CSS Generator - Online Underline & Strike
Style underlines, overlines, and strike-throughs with colors, wavy styles, and thickness. Modern CSS text‑decoration.
Random Medieval Profession - Online RPG Background
Generate a random medieval occupation with a short description. For NPCs or historical curiosity. Local list.
Noir Plot Generator - Online Hardboiled Story
Generate a hardboiled film noir plot with a detective, a dame, and a McGuffin. Great for creative writing prompts.
Fancy Title Generator - Online Royal & Noble Names
Generate a grand, aristocratic title like 'Duke of Waffleshire'. Perfect for silly fun or RPG characters. Local.
Image to Binary Array - Online Pixel Dump
Convert any image into a raw binary array of RGBA values. For use in embedded systems or game development. Copy as Uint8Array.
CSS Glow Hover Effect - Online Animated Box Shadow
Design a button or card that glows on hover. Adjust shadow color, spread, and transition. Copy the CSS. Rich UI.
CSS Letterpress Text Effect - Online Inset Typography
Create a realistic letterpress (debossed) text effect using CSS text‑shadow and background. Adjust depth and light direction. Copy code.
Random Dinosaur Name Generator - Online Prehistoric Fun
Generate a realistic‑sounding dinosaur name and see a fun description. Perfect for kids and writers.
Color Image to ASCII Art - Online True Color Converter
Convert any image into colored ASCII art using divs with background colors. Creates a stunning text‑based replica. View & copy HTML.
Fuzzy Data Generator - Online Create Random Records
Generate random but realistic‑looking data arrays (users, products, orders) with typos and missing fields. For test robustness.
CSS Checkerboard Pattern - Online Background Generator
Create a customizable checkerboard or grid background using pure CSS gradients. Adjust cell size and colors. Copy the code.
CSS Progress Bar Generator - Online Animated & Styled
Create a custom HTML/CSS progress bar with percentage, colors, and animation. Copy the code. Modern UI element.
Resignation Letter Builder - Online Professional Generator
Fill in a few details and get a polished resignation letter. No data stored. Instant copy or print.
Text Outline Generator - Online Structured Hierarchical View
Paste plain text and turn it into a nested outline using indent levels or Markdown headings. Great for planning.
Image to CSS Grid Layout - Online Pixel‑Based Generator
Upload a small pixel art image and get a CSS grid layout that recreates it using divs. Novelty developer tool.
Text to Braille Image - Online Embossable PNG Generator
Convert short text into a black‑and‑white Braille bump image ready for embossing. Educational and inclusive.
Random Song Lyric Generator - Online Fake Music Line Creator
Generate a random, somewhat meaningful song lyric line. Write your own hit with AI‑free randomness. All local.
Exoplanet Name Generator - Online Alien World Catalog
Generate a realistic‑sounding exoplanet designation (e.g., Kepler‑442b) and a sci‑fi planet description. For worldbuilding.
Magic Square Generator - Online Create n x n Constant Sum Grid
Generate magic squares of odd order (3x3, 5x5, …). See the sum constant and verify rows, columns, diagonals. Educational math toy.
Excuse Generator - Online Funny & Creative Reasons
One click to get a hilarious excuse for being late, missing homework, or not doing chores. Pure comedy.
Fake Receipt Generator - Online Custom Prank Receipts
Design a realistic-looking fake receipt with custom store name, items, and total. For jokes and gags. No real transaction.