UD5 Toolkit
Placeholder Image Generator - Online Dummy Image Creator
Generate custom placeholder images for mockups and layouts. Specify dimensions, colors, and text. Export as PNG or use the generated data URI. Entirely browser-based.
Lorem Ipsum Image - Online Dummy Photo Placeholder
Image Size
Ă—
Ratio:
Preset Sizes
Background Color
Text Color
Custom Text (leave empty for auto size label)
Output Format
Live Preview
800 Ă— 600 px
Code Snippet
Online alternative:
https://via.placeholder.com/800x600/e0e0e0/333333
Frequently Asked Questions
What is a Lorem Ipsum Image / Dummy Placeholder?
A dummy placeholder image (often called Lorem Ipsum Image) is a temporary graphic used during website design, prototyping, and development. It fills visual space where final images will eventually go, helping designers and developers visualize layouts without needing actual photography or final artwork.
What size should my placeholder image be?
Choose dimensions that match your final image requirements. Common sizes include 800Ă—600 for general use, 1920Ă—1080 for hero banners, 1200Ă—628 for social media sharing, 300Ă—250 for ads, and 375Ă—667 for mobile mockups. Our tool includes preset sizes for quick selection.
Which format should I choose - PNG, JPEG, WebP, or SVG?
PNG offers lossless quality and supports transparency. JPEG provides smaller file sizes ideal for photos. WebP combines small size with excellent quality, supported by all modern browsers. SVG is resolution-independent and perfect for responsive designs, with the smallest file size for simple graphics.
How do I choose the right colors for my placeholder?
Use a neutral background like light gray (#e0e0e0) for generic placeholders. Match your brand colors if the placeholder represents branded content. Ensure sufficient contrast between background and text for readability. Dark backgrounds with white text work well for hero image placeholders.
Can I download the generated placeholder image?
Yes! Click the "Download Placeholder Image" button to save the image directly to your device. The download respects your selected format (PNG, JPEG, WebP, or SVG). All generation happens locally in your browser - no uploads, no waiting, and complete privacy.
Can I use this tool offline?
Absolutely! All image generation is done client-side using Canvas API and SVG rendering directly in your browser. There's no server dependency, no API calls, and no internet connection required once the page loads. Your images are never uploaded anywhere.
What does the aspect ratio lock do?
The lock feature maintains proportional dimensions when you adjust width or height. Enable it and select a ratio like 16:9 or 4:3. Then, when you change one dimension, the other updates automatically to preserve the chosen proportions - perfect for ensuring your placeholder matches specific layout requirements.
Code to Image Snippet - Online Carbon‑Style Screenshot
Paste code and generate a beautiful, syntax‑highlighted PNG image. Choose theme and window style. Shareable code pics.
Alt Text Suggestion Tool - Online Image Description Generator
Upload an image and get a suggested alt text description using a local vision model (WASM). Improve SEO and accessibility fast.
CSS Mask Image Generator - Online Reveal Effects
Create CSS mask‑image effects with custom shapes, gradients, and SVGs. Visually see the mask applied to an image. Copy the CSS.
Screenshot Cropper & Annotator - Online Markup Tool
Paste a screenshot or image, crop it, and add arrows, rectangles, and text. Essential for bug reports and tutorials.
Image Padding Tool - Online Add White Space Around Photo
Add customizable padding to any image. Make it square or fit a specific aspect ratio by adding whitespace. Download padded PNG.
Image Corner Rounder - Online Each Corner Individually
Visually adjust each corner's radius on an image independently. Preview and download as PNG. For non‑uniform rounding.
overflow‑clip‑margin Demo - Online Visible Beyond Clip
Learn how to let content extend a few pixels beyond a clip boundary with overflow‑clip‑margin. Interactive playground.
Platform Authenticator Demo - Online Fingerprint & Face ID
Test your device's built‑in biometric (Touch ID, Face ID, Windows Hello) using the Web Authentication API. Register and verify.
Picture Hanging Height Calculator – Online Eye‑Level Guide
Find the ideal height to hang art based on wall and furniture dimensions. Follow gallery standard 57‑inch center rule.
Custom Cursor CSS Generator - Online Image to Cursor
Upload an image and generate the CSS to use it as a custom mouse cursor. Test it live. Fun for personal websites.
Box Shadow Playground - Online Visual CSS Shadow Editor
Interactively add and adjust multiple box shadows on a sample element. Drag sliders for offset, blur, spread, and color. Copy the clean CSS code instantly.
scroll‑padding & scroll‑margin Demo - Online Anchor Position
See how scroll‑padding and scroll‑margin affect the position of elements when using anchor links or scroll‑snap. Visual.
Box Shadow CSS Generator - Online Shadow Effect Designer
Design layered box shadows interactively and get the CSS code in real time. Adjust offset, blur, spread, and color. Essential tool for UI designers.
Random Box Model Snippet - Online CSS Layout Practice
Generate a random HTML/CSS card with different box model properties. Inspect and guess the size. For learners.
Clipboard Image Paste Demo - Online Ctrl+V to Preview
Press Ctrl+V to paste an image from your clipboard into the page. See dimensions and download. Simple utility.
Cookie Consent Banner Generator - Online GDPR/CCPA HTML & CSS
Create a custom cookie consent banner with text, button styles, and colors. Copy the ready‑to‑use HTML/CSS/JS snippet.
CSS Inset Box Shadow Generator - Online Inner Depth
Create inner shadows for a pressed or sunken effect. Visually adjust and copy the CSS. Learn inset.
Barcode Generator - Free Online 1D Barcode Maker
Generate standard 1D barcodes including CODE128, EAN-13, and UPC-A. Download as image for product labeling or inventory. All processing happens locally.
WebAuthn Demo - Online Register & Authenticate
Create a passkey and authenticate using the Web Authentication API. Supports platform authenticators (TouchID, FaceID). No server.
CSS Box Model Visualizer - Online Interactive Margin Padding
Adjust margin, border, padding, and content sizes interactively and see the rendered box model. Get the exact CSS. Teach or learn layout.
HTML Escape/Unescape Live Preview - Online Sandbox
Type raw HTML and see the escaped version, then see how it renders when unescaped. Understand encoding better.
isolation CSS Property Demo - Online Control Stacking Context
Use isolation: isolate to contain mix‑blend‑mode and filters. See the visual difference with and without. Quick demo.
Custom Focus Ring Styler - Online CSS :focus‑visible Designer
Design a custom focus indicator with outline, offset, and box‑shadow. Preview on interactive elements. Copy the CSS.
HTML Entity Encoder & Decoder - Online Escape Tool
Encode special characters to HTML entities or decode them back to normal text. Perfect for web developers to sanitize or reverse HTML escaping. All processing is client-side.
IPv4 Subnet Builder - Online Visual Range Calculator
Enter an IP and CIDR prefix to visually see network address, broadcast, usable range, and subnet mask conversions.
Simple Weaving Draft Generator - Online 4-Shaft Pattern Creator
Create a simple 4-shaft weaving draft by clicking warp/weft threads. See plain weave, twill, satin. Educational for weavers. Local only.
CSS Ribbon Generator - Online Corner Banner Design
Create a 'SALE' or 'NEW' corner ribbon in pure CSS. Adjust colors, position, and text. Great for e‑commerce.
Screen Color Picker - Online Eyedropper with Magnifier
Use the browser's native eyedropper tool to pick any color from the screen. Shows zoomed preview. Quick and easy.
CSS contain Property Demo - Online Layout & Paint Isolation
Toggle contain: strict, content, paint, layout and see how it affects rendering. Understand isolation for faster pages.