Free Online Design Tools

Free Online Design Tools for Designers & Developers

ToolRux offers 16 free online design tools built for speed and simplicity. Generate color palettes, create favicons, resize images, build CSS box shadows, preview font pairings, design Flexbox and Grid layouts, and create CSS animations — all without installing anything.

Color & Visual Tools

Create and fine-tune visual elements for your projects:

• Color Palette Generator — Generate harmonious color palettes using six color theory modes: complementary, analogous, triadic, split-complementary, tetradic, and monochromatic. Export palettes as CSS custom properties and click to copy any color.
• Box Shadow Generator — Visually design CSS box shadows with multi-layer support, inset shadows, and live preview. Choose from 8 presets (Soft, Elevated, Sharp, Layered, Glow, Inner, Neumorphism, Card) or build your own from scratch. Copy production-ready CSS code instantly.
• Glassmorphism Generator — Create frosted-glass UI effects with customizable blur, transparency, and border settings. Copy production-ready CSS.
• Neumorphism Generator — Design soft UI elements with neumorphic shadows, adjustable light direction, intensity, and colors.
• Text Shadow Generator — Create CSS text shadow effects with multi-layer support, live preview, and one-click copy.
• Border Radius Generator — Visually design CSS border-radius values with individual corner control and live preview.

Layout & CSS Tools

Build layouts and CSS effects visually:

• Flexbox Generator — Build CSS Flexbox layouts visually with direction, wrap, justify, align, and gap controls. Edit individual child properties and copy the generated CSS.
• CSS Grid Generator — Design CSS Grid layouts with rows, columns, gaps, and template areas. Visualize and export production-ready CSS.
• CSS Animation Generator — Create CSS keyframe animations with visual timeline, easing controls, and live preview. Copy ready-to-use CSS.

Typography Tools

Perfect your typographic choices with live previews:

• Font Pairing Previewer — Browse 12 curated Google Font pairings or mix and match from a library of popular fonts. Customize heading and body sizes, line height, and toggle dark preview mode. Get ready-to-use CSS with Google Fonts import included.

Image & Media Tools

Resize, convert, and optimize images directly in your browser:

• Favicon Generator — Create favicons from text, emoji, or uploaded images with customizable background colors and rounded corners. Download all 7 standard sizes (16px to 512px) in one click and get the HTML link tags ready to paste.
• Image Resizer — Resize and compress images with aspect-ratio locking. Convert between PNG, JPEG, and WebP formats, adjust quality, and use quick-scale presets (25%, 50%, 75%). See file size comparison before and after.
• Image Compressor — Compress images to reduce file size while maintaining quality. Supports JPEG, PNG, and WebP with adjustable quality slider.
• SVG Optimizer — Optimize and clean up SVG files by removing unnecessary metadata, comments, and attributes to reduce file size.
• Placeholder Image Generator — Generate placeholder images with custom dimensions, colors, and text for mockups and prototypes.
• Aspect Ratio Calculator — Calculate and convert aspect ratios for any dimensions. Browse 8 common ratios (16:9, 4:3, 1:1, etc.) and 10 resolution presets (HD, 4K, Instagram, YouTube thumbnail, OG image). Scale to new sizes while maintaining proportions and get CSS aspect-ratio code.

Looking for unit, currency, or data format conversions? Check out our Converter Tools. Need financial or health calculators? Try our Calculators.

Why Use ToolRux Design Tools?

• 100% Free — Every design tool is completely free to use, no sign-up required.
• Privacy First — All processing happens in your browser. Images and data never leave your device.
• Copy-Ready Output — Get production-ready CSS, HTML, or downloadable files with one click.
• Mobile Friendly — Fully responsive design works perfectly on phones, tablets, and desktops.
• Dark Mode — Easy on the eyes with automatic dark mode support across all tools.
• Shareable Links — Tool settings are saved in the URL so you can share or bookmark your exact configuration.

Frequently Asked Questions

Are these design tools really free?

Yes — every design tool on ToolRux is completely free to use with no account required.

Is my data safe when using image tools?

Absolutely. All image processing (resizing, favicon generation) happens entirely in your browser using the Canvas API. Your images are never uploaded to any server.

Can I use these tools on my phone?

Yes. All design tools are fully responsive and work on any modern browser — Chrome, Safari, Firefox, Edge — on mobile phones, tablets, and desktop computers.

What color harmony modes does the palette generator support?

The Color Palette Generator supports six modes: complementary (opposite colors), analogous (adjacent colors), triadic (three equidistant colors), split-complementary, tetradic (four colors), and monochromatic (single hue variations).

What favicon sizes are generated?

The Favicon Generator creates 7 standard sizes: 16x16, 32x32, 48x48, 64x64, 128x128, 192x192, and 512x512 pixels. These cover all common use cases from browser tabs to mobile home screen icons.

What image formats does the resizer support?

The Image Resizer accepts any browser-supported image format as input and can export to PNG (lossless), JPEG (with quality control), or WebP (modern compression). You can adjust the quality slider for JPEG and WebP output.

How does the box shadow generator work?

The Box Shadow Generator lets you visually create CSS box-shadow values with controls for X/Y offset, blur radius, spread, color, opacity, and inset. You can stack multiple shadow layers and see a live preview. The generated CSS code is ready to copy into your stylesheet.

Where do the font pairings come from?

The Font Pairing Previewer includes 12 curated pairings from Google Fonts chosen for visual harmony. Fonts load dynamically from Google Fonts CDN for live preview. You can also mix and match any heading and body font from the available library.

What is an aspect ratio and why does it matter?

An aspect ratio is the proportional relationship between width and height (e.g., 16:9). Maintaining consistent aspect ratios prevents images from appearing stretched or cropped. The calculator helps you scale dimensions while preserving proportions.

Can I share my design tool settings with someone?

Yes. Most design tools save their settings in the URL. Simply copy the URL from your browser address bar and share it — the recipient will see the exact same configuration.