Design Online Tools
Free CSS & UI design tools: box-shadow generator, linear & radial gradient maker, WCAG 2.1 color contrast checker, aspect ratio calculator, and glassmorphism generator.
Available Tools in Design (5)
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CSS Box Shadow & Glow Generator
Visually design CSS box-shadows, soft elevations, and neon glows with instant CSS and Tailwind class output.
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CSS Linear & Radial Gradient Generator
Create smooth multi-stop CSS linear and radial gradients with angle controls and Tailwind CSS classes.
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WCAG Color Contrast & Accessibility Checker
Test foreground and background text color contrast ratios against WCAG 2.1 AA and AAA standards.
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Aspect Ratio & Dimension Calculator
Calculate proportional width and height dimensions for 16:9, 9:16, 4:3, 1:1, and 21:9 screen resolutions.
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Glassmorphism & Frosted Glass Generator
Design frosted glass cards with CSS backdrop-filter blur, translucent borders, and light/dark theme styling.
Frequently Asked Questions About CSS & Design Tools
What tools are included in the EverySolve Design & CSS Utilities category?
The Design category includes five browser-based UI engineering and visual styling tools: CSS Box Shadow Generator, CSS Gradient Generator, WCAG 2.1 Color Contrast Checker, Screen & Image Aspect Ratio Calculator, and CSS Glassmorphism Generator. We also cross-link companion tools such as the HSL Color Palette Generator and Color Code Converter.
How does the WCAG 2.1 Color Contrast Checker calculate AA and AAA compliance?
Our contrast checker converts sRGB HEX colors into linear RGB channels to compute relative luminance (L = 0.2126×R + 0.7152×G + 0.0722×B) and applies the W3C formula (L1 + 0.05) / (L2 + 0.05). It evaluates compliance against WCAG 2.1 Success Criterion 1.4.3 (AA: 4.5:1 normal text, 3.0:1 large text), Criterion 1.4.6 (AAA: 7.0:1 normal text, 4.5:1 large text), and Criterion 1.4.11 (3.0:1 for UI components and graphics).
Do the CSS generators output both standard W3C CSS3 and Tailwind CSS syntax?
Yes. The Box Shadow Generator, Gradient Generator, and Glassmorphism Generator output standard W3C CSS declarations alongside ready-to-paste Tailwind CSS arbitrary utility classes so you can integrate styles into either vanilla stylesheets or utility-first React and Next.js projects.
How does the Aspect Ratio Calculator scale dimensions without distorting images or video?
The calculator finds the Greatest Common Divisor (GCD) of your original width and height using the Euclidean algorithm to reduce the ratio to its simplest integer form (such as 1920×1080 → 16:9). When you enter either a target width or a target height, it computes the missing dimension proportionally and generates both modern CSS 'aspect-ratio' rules and legacy padding-top percentages.
Why do glassmorphism UI cards require both backdrop-filter and -webkit-backdrop-filter?
While Chrome, Edge, and Firefox support the standard W3C CSS Filter Effects 'backdrop-filter: blur()' property, Safari on iOS and macOS requires the '-webkit-backdrop-filter' prefix in several versions. Including both properties alongside a translucent RGBA background ensures frosted-glass UI cards degrade gracefully everywhere.
Are my brand colors, layout dimensions, and CSS configurations kept private?
Yes. All calculations—including sRGB luminance math, HSL color wheel transformations, GCD aspect ratio scaling, and CSS stylesheet generation—execute 100% locally in your browser's JavaScript engine with zero server uploads or external API calls.
Can I enter 0px offsets, 0deg angles, or 3-digit shorthand HEX colors (#FFF)?
Yes. EverySolve's design engine preserves explicit zero values (such as 0px vertical offset, 0px blur for hard brutalist shadows, or 0deg bottom-to-top gradients) without overwriting them with defaults, and automatically expands 3-digit shorthand HEX codes (#RGB to #RRGGBB).
How do these CSS & UI tools fit into a complete frontend design workflow?
Designers and frontend developers typically start by choosing accessible foreground/background pairs in the Color Contrast Checker and Color Palette Generator, define responsive media containers with the Aspect Ratio Calculator, and finish card surfaces with the Box Shadow, Gradient, and Glassmorphism generators before minifying stylesheets in our Developer tools.
Related EverySolve Categories
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Text & Writing Tools →
Word counter, case converter, text cleaner, and diff checker.
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Developer Utilities →
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