UD5 Toolkit
Grid Drawing Tool - Online Overlay on Photo for Copying
Overlay a grid on any image to help you draw it freehand. Adjust grid size and line thickness. Useful for artists.
Image to Color Squares - Online Abstract Block Art
Drop image here or click to upload
JPG, PNG, WebP · Max 10MB
Fine details
Abstract
Color Palette
0
Upload an image to extract colors.
Block Art Preview
Upload an image to see the block art
Frequently Asked Questions
This tool converts any image into a mosaic of solid color squares, creating an abstract pixel art or block art effect. Each square represents the average color of that region, producing a stylized, modern look perfect for wallpapers, avatars, or creative projects.
Simply upload an image by clicking the upload area or dragging and dropping a file. Adjust the Block Size slider to control the level of abstraction. Once you're happy with the preview, click Download Block Art to save the result. You can also expand the Color Palette to see the dominant colors.
No. All processing happens directly in your browser. Your image never leaves your device, ensuring 100% privacy and security.
Common web formats such as JPEG, PNG, and WebP are fully supported. The file size limit is 10MB for optimal performance.
A smaller block size preserves more detail, making the result closer to the original image. A larger block size creates a more abstract, minimalist interpretation. Experiment to find the perfect balance for your artwork.
Yes! The download uses the original image dimensions (capped at 5000px on the longest side for performance) to produce a crisp, high-quality block art. The result is a PNG file with transparency preserved if your image has it.
Absolutely! The Image to Color Squares tool is 100% free and does not require any registration or hidden fees.
Image to Cross Stitch Pattern - Online Convert Photo to Grid
Upload a photo and convert it to a pixelated cross-stitch pattern with DMC floss color matching. Adjust size and color count. Local processing.
Houdini Paint Perspective Cube - Online CSS Art
A paint worklet that draws a moving 3D cube. See Houdini in action and copy the JS file. Modern CSS magic.
3D Color Space Viewer - Online Explore RGB Cube
Rotate and explore the RGB color space as a 3D cube. Pick colors directly from the volume. Interactive Three.js.
Quilt Pattern Previewer - Online Fabric Layout Visualizer
Arrange virtual fabric squares or triangles on a grid to preview a quilt pattern. Change colors and sizes. Export layout.
Perspective Grid Generator - Online Drawing Reference
Create 1-point, 2-point, or 3-point perspective grids. Adjust vanishing points and grid spacing. Useful for artists and architects.
Multi‑User Whiteboard (Local) - Online Shared Drawing
Open the same page in two tabs and draw together in real time using BroadcastChannel API. Share ideas without a server.
Color Inversion Calculator - Online Exact Opposite Hue
Get the exact RGB inversion (negative) of any color. Useful for dark mode theming and high‑contrast accessibility checks.
Spirograph Simulator - Online Hypocycloid Drawing Tool
Create beautiful Spirograph patterns by adjusting circle radii and pen position. Change colors and save as PNG. Relaxing math art.
Subgrid Card Layout Demo - Online CSS Subgrid
Align card elements across rows using CSS subgrid. See how headers and footers align vertically. Future of CSS layout.
Dependency Graph Builder - Online Visualize NPM/Import Dependencies
Enter dependencies in a simple text format and see a force‑directed graph of the project's dependency tree. For planning architectures.
Shared Storage API Demo - Online Cross‑Site Data
Write to shared storage and run a worklet to process data. Learn the privacy‑preserving alternative to third‑party cookies.
Virtual Deck Shuffler & Random Card Drawer
A fully animated deck of 52 cards. Shuffle, cut, or draw a specific number of cards. Perfect for missing cards in a real deck.
Pythagorean Theorem Calculator - Online Right Triangle Solver
Enter two sides of a right triangle and get the third. Also gives area and perimeter. Simple and visual.
Polygon Name Finder - Online How Many Sides?
Enter a number of sides (3‑100) and get the correct polygon name (triangle, hectogon). Fun geometry reference.
Random Retro Cheat Code - Online Nostalgia
Generate a random sequence of button presses that looks like a retro game cheat code. Totally useless, totally fun.
Chemical Equation Balancer - Online Stoichiometry Solver
Enter an unbalanced chemical equation and get the balanced coefficients instantly. Supports parentheses and ions. All local JavaScript algebra.
Seed Starting Calendar - Online Last Frost Date Planner
Enter your average last frost date and generate a planting schedule for vegetables and flowers. Know exactly when to start seeds indoors or direct sow.
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.
Web Image Size Calculator - Online KB & Dimensions Tool
Predict the file size of an image based on pixel dimensions and format (JPEG, PNG, WebP). Rough estimate. Local.
Image Palette Extractor (Paste) - Online Clipboard Image
Paste an image from your clipboard directly into the page (Ctrl+V) and extract its color palette. No file dialog needed.
Remove White Background - Online Make Transparent
Automatically remove white background from an image and make it transparent. Adjust tolerance. Save as PNG.
Random Palette from Image URL - Online Surprise Colors
Enter the URL of any image and receive a random harmonious palette extracted from it. Click to regen. For quick inspiration.
Image Color Blindness Simulator - Upload & See
Upload any image and view it as a person with deuteranopia, protanopia, or tritanopia would. Promote inclusive design.
Abstract Icon Generator - Online Random Geometric Shapes
Click to get a randomly generated, unique abstract icon (geometric pattern). Download as SVG. For placeholder avatars and designs.
Image Negative Filter - Online Invert Colors Photo
Apply a true negative color effect to your image. Simulate a film negative or invert scanned documents. Instant canvas transformation.
Image Round Corners - Online Add Border Radius Smoothly
Apply a precise rounded corner effect to an image by cropping with a mask. Download as transparent PNG. All local.
Image Format MIME Checker - Online Identify True Type
Drop an image that might have wrong extension and see its real format (JPEG, PNG, WebP) based on header bytes.
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.
Daily Random Cat Image - Online Feline Joy
A new random cat photo every day from a curated set of pics. Click to refresh. Bright and adorable.