UD5 Toolkit
Color Scale Generator - Online Create Monochromatic Stops
Generate a range of tints and shades from a single hex color. Ideal for data visualization, UI design systems, and Tailwind custom palette creation. Local tool.
Tag: Scale Tool - Proportion Change
9+ toolsOnline Video Resizer - Crop & Scale Locally
Resize a video by cropping to a new aspect ratio or scaling up/down. Apply and download the result. Browser‑based.
Solar System Scale Model - Online Visual Comparison
See planets and orbits at true scale (or logarithmic). Scroll from the Sun to Pluto. Understand space distances. Canvas.
Recipe Servings Converter - Online Scale Ingredients
Enter a recipe and scale the ingredient quantities up or down by servings. Supports fractions and mixed units. Cooking helper.
Accessible Color Scale Builder - Online Generate Tints/Shades with Contrast
Pick a base color and generate a 10‑step scale where each step meets a specific contrast ratio against white or black. Export as CSS custom properties.
Font Size Scale Preview - Online Typography Visualizer
Type a few words and see them rendered at every heading size (h1–h6) with your chosen font. Perfect for design systems.
Typography Scale Generator - Online Perfect Header Sizes
Select a ratio (1.25, 1.333, 1.5) and a base size to generate a full typographic scale for h1‑h6. Copy CSS variables.
Scale of the Universe - Online Zoom from Planck to Galaxy
Zoom through sizes from the Planck length to the observable universe. Educational and awe‑inspiring visualization.
Image Resizer - Online Bulk Photo Resize Without Upload
Resize images directly in your browser by width, height, or percentage. Maintain aspect ratio and download the result. Images never leave your computer.