UD5 Toolkit
Emoji Background Pattern Generator - Online Repeat CSS
Select emojis and arrange them into a seamless tiling background. Copy the CSS data‑URI or download as image.
Background‑Blend‑Mode Explorer - Online Layer Patterns
🎨 Presets:
Layer 1 · Base
Layer 2
Layer 3
#f0e6d3
background-image: --;
background-blend-mode: --;
background-size: --;
background-blend-mode: --;
background-size: --;
Frequently Asked Questions
What is CSS background-blend-mode?
The
background-blend-mode CSS property controls how an element's background images blend with each other and with the element's background color. It works similarly to Photoshop layer blend modes, enabling creative visual effects directly in the browser without additional image processing tools.Which browsers support background-blend-mode?
All modern browsers fully support background-blend-mode: Chrome 35+, Firefox 30+, Safari 8+, Edge 79+, and Opera 22+. It has excellent coverage (over 96% of global users). For older browsers, the property is simply ignored and backgrounds display normally without blending.
What's the difference between background-blend-mode and mix-blend-mode?
background-blend-mode blends multiple background layers within a single element, while mix-blend-mode blends an entire element with its parent or sibling elements behind it. Use background-blend-mode for layered background effects; use mix-blend-mode for blending whole elements with their backdrop.How many background layers can I blend?
CSS supports an unlimited number of background layers (separated by commas). Each layer can have its own blend mode. With 3 layers, you can set 2 blend modes (one for the middle layer blending with the bottom, one for the top layer blending with the result beneath it). This explorer supports up to 3 layers for practical experimentation.
What are common use cases for background-blend-mode?
Popular use cases include: adding texture overlays to photos, creating duotone effects, building layered gradient designs, generating subtle noise/pattern textures on solid colors, photo color grading, and crafting unique hero section backgrounds without heavy image assets.
Does background-blend-mode affect performance?
Background-blend-mode is GPU-accelerated in all modern browsers and has negligible performance impact. However, combining many complex gradients with blend modes on very large elements (like full-viewport backgrounds) may cause slight rendering delays on low-end mobile devices. For most use cases, performance is excellent.
Can I use images with background-blend-mode?
Yes! You can use
url() images as background layers and blend them with gradient overlays or other images. A common technique is layering a gradient over a photograph with background-blend-mode: multiply or overlay to create beautiful color-graded hero images entirely in CSS.Noise Texture & Grain Generator - Online CSS Background
Generate a subtle noise/grain texture as a CSS background pattern. Adjust opacity and size. For that film look.
Animated Gradient CSS Generator - Online Moving Background
Create a looping animated gradient background with multiple color stops. Copy the complete CSS keyframes. Eye‑catching.
Remove White Background - Online Make Transparent
Automatically remove white background from an image and make it transparent. Adjust tolerance. Save as PNG.
CSS Box Reflect Generator - Online WebKit Mirror Effect
Create a reflection effect for images or text using box‑reflect. Adjust direction and offset. Copy the CSS.
animation‑composition Demo - Online Blend Multiple Animations
See how `animation‑composition: replace, add, accumulate` works by layering animations on the same property. Understand the spec.
Gradient Match Game - Online Drag & Match Linear CSS
Recreate the target CSS linear gradient by adjusting stops and colors. A unique game for front‑end developers to master gradients.
object‑fit & object‑position Demo - Online Image Scale Control
Try all object‑fit values (fill, contain, cover, scale‑down) on an image. Adjust object‑position. Copy the CSS.
CSS Animation Generator - Online Keyframes & Transitions
Create CSS animations and transitions without coding. Define keyframes, easing, and duration. Copy the @keyframes and animation code instantly.
Rendering Intent Hint Demo - Online content‑type CSS
Test how `content‑type: text/html` vs `content‑type: image/svg+xml` affects SVG rendering in the browser. Modern performance hint.
AI Background Remover (Local) - Online Remove Background Free
Automatically remove the background from any photo using a small on‑device AI model (WASM). No upload. Works offline.
Touch Feedback Generator - Online Haptic & Visual Cue
Preview different touch feedback patterns (scale, color, ripple) for mobile buttons. Copy the CSS and HTML. Improve mobile UX.
CSS Filter Functions Playground - Online Visual Adjustments
Chain multiple CSS filter functions and see the result on an image. Copy the filter string. No upload.
Animatable CSS Properties Cheatsheet - Online Reference
Search and filter all CSS properties that can be animated. See value types and example keyframes. Quick dev reference.
CSS 3D Transform Sandbox – Online Rotate Translate Preview
Adjust rotateX/Y/Z and translate to see a 3D box in real time. Copy optimized CSS transform.
JavaScript Regex Cheatsheet - Online Interactive Pattern Reference
Interactive cheatsheet for JavaScript regular expressions with live examples. Click any token to see its explanation and test it on sample text immediately.
CSS Transform Origin Playground - Online Visual Pivot
Click on a box to set the transform‑origin point and see how rotations and scales change. Copy the CSS.
Image Vignette Effect - Online Darken Edges
Add a soft vignette to your photo. Control radius, darkness, and feathering. Creates a classic photographic look.
Image Hue Shifter - Online Change Colors Easily
Rotate the hue of any image globally. Turn a red car blue instantly. Download the result. Works entirely in the browser.
Chromatic Adaptation Demo - Online See Color Under Different Lights
Simulate how a palette looks under daylight, tungsten, or fluorescent light. Understand metamerism. For accurate color work.
Random CV Skill Generator - Online Modern Job Terms
Add some trendy skills to your resume. Generate a list of hard and soft skills relevant for tech and business jobs.
Shuffleboard Strategy Visualizer – Online Puck Placement Planner
Drag pucks onto a digital lane to plan offensive and defensive shots. Practice before your next cruise.
Dynamic SVG Placeholder Generator - Online Text-Based
Generate an SVG placeholder image with custom text, width, height, and colors. Use as a placeholder service. Pure SVG.
BlurHash Generator & Preview - Online Placeholder Image
Upload an image and get its BlurHash string along with a tiny preview. Use for progressive loading. Pure JavaScript.
Canvas Sprite Animation - Online Play Sprite Sheet
Load a sprite sheet, define frames, and play an animation on a canvas. Control frame rate and loop. Game dev tool.
Dynamic Placeholder Image Service - Online Test Images
Generate dynamic placeholder images by specifying width, height, colors, and text. View instantly as a URL you can embed in mockups. Canvas-based.
SVG Placeholder Image - Online Dynamic Size Box
Generate a link to an SVG placeholder image with a custom width, height, and text. Use as dummy image src. No server.
Virtual Circular Slide Rule – Online E6B Style Calculator
Drag the virtual ring to perform multiplication, division, and unit conversions. Rediscover pre‑electronic calculator charm.
Candle Making Calculator - Online Wax & Fragrance Ratio
Calculate the exact amount of wax and fragrance oil needed based on container volume and desired scent load. DIY candle crafting.
Bayes' Theorem Calculator - Online Probability Update Tool
Easily compute posterior probabilities given prior, likelihood, and marginal likelihood. Visual diagram. All local.