FREE ONLINE TOOLS
🎨 Free Design Tools
Browse 40 free design tools on FastTool. Most workflows run in your browser where local processing is supported, with no signup required.
About Our Design Tools
Great design starts with the right tools at hand. FastTool's free design tools let you pick colors, generate gradients, create palettes, build CSS layouts, and preview typography without opening heavyweight design software. Everything runs client-side, so your creative experiments stay fast and private. Whether you are a UI designer refining a color system, a front-end developer prototyping a layout, or a hobbyist building a personal site, these tools help you move from idea to implementation faster. Each tool outputs copy-ready values like HEX, RGB, HSL, and CSS code snippets that you can paste directly into your project.
TASK WORKFLOWS
Start with a design workflow
Featured Design Starters
Start with the tools that create stronger visual direction before you open the full design catalog.
Color Wheel & Harmonies
Start with harmony: map complementary, triadic, analogous, split, square, and monochrome palettes before building tokens and contrast-safe UI states.
Matrix Rain Effect Generator
Create Matrix-style digital rain visuals for hero sections, launch graphics, cyberpunk backgrounds, and motion-reference art.
All Design Tools (40)
Color Picker Trending
Pick colors with EyeDropper, get HEX/RGB/HSL/CMYK/HWB values, explore harmonies and gradients.
CSS Gradient Generator Upgraded
Create stunning CSS gradients with linear, radial, and conic types. Angle slider, up to 8 color stops with position control, 20 beautiful presets, live preview, full-screen mode, and one-click CSS copy with vendor prefixes.
CSS Gradient Generator Upgraded
Create stunning CSS gradients with linear, radial, and conic types. Angle slider, up to 8 color stops with position control, 20 beautiful presets, live preview, full-screen mode, and one-click CSS copy with vendor prefixes.
Color Converter (HEX/RGB/HSL/HSV/CMYK) Upgraded
Convert colors between HEX, RGB, HSL, HSV, and CMYK formats with auto-detection, large preview swatch, closest CSS color name, alpha/opacity support, one-click copy, and color blindness simulation.
Color Palette Generator Upgraded
Generate beautiful color palettes from any base color. Choose from complementary, analogous, triadic, split-complementary, tetradic, and monochromatic harmonies. Export as CSS variables, Tailwind config, or SCSS. Built-in contrast checker with WCAG AA/AAA compliance.
CSS Box Shadow Generator
Create multi-layer CSS box shadows visually with live preview. Add, remove, and customize each shadow layer independently with sliders for X/Y offset, blur, spread, color, and opacity. Choose from 10 presets including neumorphism, material, and layered depth effects. Customize the preview card size, color, and border-radius. Toggle dark/light preview background.
Color Palette from Image
Extract dominant colors from an uploaded image.
CSS Border Radius Generator
Design CSS border-radius visually with draggable corner handles and per-corner sliders. Toggle between simple 4-value and advanced 8-value (horizontal/vertical per corner) modes. Apply presets like Circle, Pill, Blob, Organic, Drop, and Leaf shapes. Customize preview box background, border, and dimensions.
Font Style Generator
Convert plain text into 10 fancy Unicode font styles — bold, italic, script, fraktur, double-struck and more for social media bios.
RGB to Hex Converter
Convert RGB color values to Hex codes and Hex to RGB with live preview.
Aspect Ratio Calculator Upgraded
Calculate and convert aspect ratios for images, video, and responsive design. Enter width and height to find the ratio, or enter a ratio plus one dimension to calculate the other. Lock ratio toggle, common presets (16:9, 4:3, 1:1, 21:9, 9:16), visual preview rectangle, and platform-specific size recommendations for YouTube, Instagram, Twitter, Facebook, and LinkedIn.
Favicon Generator
Create favicons from text or uploaded images. Choose shapes, gradients, fonts, and download a full icon pack with HTML snippet.
Placeholder Image Generator
Generate placeholder images with custom dimensions and colors.
Google Fonts Previewer
Browse and preview Google Fonts with custom text.
Color Blindness Simulator
Upload an image and simulate different types of color blindness.
CSS Gradient Animator
Create animated CSS gradients with 10 presets, up to 8 colors, custom speed/easing, Tailwind output, and fullscreen preview.
SVG Path Editor
Edit SVG path data with a visual canvas preview.
WCAG Contrast Checker Upgraded
Advanced WCAG 2.1 contrast checker with AA/AAA pass/fail badges, color blindness simulation, auto-fix suggestions, live text preview, and random accessible palette generator.
CSS Animation Generator
Visual keyframe animation builder with live preview. Choose from 10 presets or build custom keyframe timelines — set per-keyframe transforms, opacity, colors, easing curves, iteration count and direction. No coding needed.
Color Name Finder
Find the nearest CSS named color for any hex or RGB value — see the top 5 closest matches with distance scores.
Color Mixer
Mix two colors together at any ratio — see the blended result as hex, RGB, and a live preview swatch.
Gradient Text Generator
Create stunning CSS gradient text — pick colors, direction, and preview your text with a live gradient effect instantly.
Neumorphism CSS Generator
Generate CSS neumorphism (soft UI) effects with real-time preview — adjust color, size, blur, distance, and shape to get the perfect soft-shadow style.
Glassmorphism Card Generator
Advanced glassmorphism card generator with live preview on colorful backgrounds. Control blur, transparency, border, radius, shape, color tint, noise texture, and stack multiple glass layers. 10 gradient presets, 5 shape variations, responsive mobile + desktop preview.
Color Shades & Tints Generator
Generate a full palette of shades and tints from any hex color — get lighter and darker variations with hex values to copy, perfect for design systems and CSS variables.
Tailwind CSS Color Palette
Browse all official Tailwind CSS colors with hex values — click any swatch to copy the hex, RGB value, or Tailwind class name. Filter by color family with instant search.
Color Wheel & Harmonies
Explore color theory with an interactive wheel, harmony presets, palette intent modes, live UI preview, contrast matrix, shareable URLs, and CSS, JSON, Tailwind, and design-token exports.
CSS Text Shadow Generator
Create multi-layer CSS text shadow effects with live preview. Add unlimited shadow layers, customize text content, font family, font size, and text color. Choose from 10 presets including Neon Glow, Fire, 3D Depth, Embossed, Outline, Comic, and Long Shadow. Toggle dark/light preview background.
CSS Loader Generator
Generate beautiful CSS loading spinners and animations. 12+ presets with live preview, fully customizable colors, size, speed, and thickness. Copy clean production-ready code instantly.
HTML Color Codes Reference
Browse all 140+ HTML named colors with their hex, RGB, and HSL values — search by name or hex, filter by hue family, and copy any color code in one click.
SVG Path Visualizer
Visualize and debug SVG path d attributes — paste any SVG path data and see it rendered in a canvas with labeled anchor points, control handles, and command breakdown.
CSS Button Generator
Generate beautiful CSS buttons with live preview — customize color, size, border radius, shadow, hover effects, and copy the ready-to-use HTML and CSS code.
SVG Optimizer
Clean and minify SVG code by removing comments, metadata, editor cruft, and unnecessary whitespace. Paste your SVG and get a leaner, faster-loading optimized version.
Font Pairing Generator
Browse 20 curated Google Font pairs with live preview. Type custom text, adjust heading and body font sizes, toggle light and dark backgrounds, filter by category (Serif+Sans, Sans+Sans, Display+Body, Modern, Classic), and copy CSS @import plus font-family declarations instantly.
Contrast Ratio Checker
Check the WCAG 2.1 color contrast ratio between foreground and background colors. Instantly see if your text passes AA or AAA accessibility standards for normal text, large text, and UI components. Essential for inclusive web design.
Type Scale Calculator New
Generate a harmonious typographic scale for h1–h6 headings with line heights, margins, and letter spacing. Choose from popular ratios like Minor Third, Perfect Fourth, or Golden Ratio. Preview rendered hierarchy and copy CSS with rem/px values.
Matrix Rain Effect Generator
Create polished Matrix-style digital rain visuals with cinematic presets, custom glyphs, colors, trail fade, scanlines, hidden messages, PNG export, frame-sheet export, and agent-ready continuation prompts.
Font Previewer New
Preview and compare Google Fonts and system fonts with custom text and sizes.
Blob Maker New
Generate organic blob shapes with customizable complexity and color for SVG export.
Mesh Gradient Generator New
Create beautiful mesh gradients with multiple color points for backgrounds.
Which Design Tool Should You Start With?
Use this quick comparison to choose the right free design tool for the job instead of opening tools one by one.
| Ranked tool | Best for | Action |
|---|---|---|
| #1 Color Picker | EyeDropper API support | Open tool |
| #2 CSS Gradient Generator | linear, radial, and conic gradient types | Open tool |
| #3 CSS Gradient Generator | linear, radial, and conic gradient types | Open tool |
| #4 Color Converter (HEX/RGB/HSL/HSV/CMYK) | auto-detect input format | Open tool |
| #5 Color Palette Generator | base color picker with hex input | Open tool |
| #6 CSS Box Shadow Generator | multiple shadow layers — add, remove, switch between shadows | Open tool |
| #7 Color Palette from Image | image upload | Open tool |
| #8 CSS Border Radius Generator | draggable corner handles on live preview for intuitive adjustment | Open tool |
How We Chose These Tools
Design tools are ranked for accessible defaults, useful previews, and output that can be pasted directly into production CSS or design notes.
The tool must produce something a visitor can copy, download, compare, or act on immediately.
Public tools need concrete input/output examples so the page is more than a generic catalog card.
Sensitive categories include conservative language and direct links to policy, privacy, and disclaimer pages.
Design Tool Quality Checklist
A strong design tool page should do more than name a utility. It should help visitors understand when to use it, what result to expect, and how to verify the output before relying on it. On FastTool, review-public design pages are selected for accessible contrast, useful previews, reusable CSS, and assets that can move straight into production.
For the best result, open the tool that matches the job, review the guidance and examples when available, then adjust the input to your real case. If the task is sensitive, regulated, financial, medical, legal, or security-critical, treat the tool result as a starting point and confirm it with an appropriate professional source or official documentation.
Worked examples show the input shape, expected output, and why the result matters.
Every browser tool has limits around file size, device power, context, or professional suitability.
Combine related tools when a task needs validation, conversion, formatting, and export.