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.
Custom Paint‑by‑Numbers Generator – Online from Photo
Upload a photo to create a numbered painting canvas with color swatches. Print and paint. Local only.
Image Flip Tool - Online Mirror & Rotate Picture
Flip images vertically or horizontally, and rotate in 90° increments. Quick and simple editing right in the browser. Download the corrected image instantly.
Image Channel Viewer - Online Isolate RGB or CMYK Channels
View the individual red, green, and blue channels of an image as grayscale. Photographer and developer tool.
Digital Hourglass - Online Visual Timer with Sand
An animated hourglass that you can set for any time. Watch the sand flow. Beautiful and calming timer.
SVG Sprite Generator - Online Combine Icons into One
Upload multiple SVGs and combine them into a single SVG sprite sheet with `<symbol>` and `<use>`. Fast icon system.
SVG to CSS Mask Converter - Online Non‑Destructive Mask
Convert an SVG shape into a CSS mask‑image. Transparent regions become masked. Great for custom image crops. Client‑side.
@counter‑style Generator - Online Custom List Markers
Design a custom counter style with symbols, range, and speak‑as. Preview ordered lists with your new style. Export the CSS rule.
SRT Subtitle Creator - Online Add Timestamps
Create .srt subtitle files manually by adding lines and setting times with a simple player. Download the result. Local.
HTML Template Element Demo - Online Clone & Use
Use the <template> tag to hold hidden HTML that is cloned and injected by JavaScript. Common pattern.
CSS Opacity & RGBA Generator - Online Transparency Tool
Adjust opacity visually with a slider and see the different CSS representations (opacity property vs RGBA/HSLA). Copy best option.
perspective‑origin Playground - Online Vanishing Point
Move the vanishing point of a 3D scene. Drag to set perspective‑origin and see the scene shift. Copy CSS.
Noise Texture CSS Generator - Online Grain & Grunge
Generate a subtle or heavy noise/grain texture as a CSS background. Adjust intensity and color. Copy the small code.
CSS visibility & display Demo - Online Show/Hide Effects
Compare visibility: hidden vs display: none. See how each affects layout and event listeners. Inline code.
International Phone Number Formatter - Online Validate & Normalize
Paste a phone number and format it according to the E.164 standard. Identify country and detect common typos. Local parser.
List Style CSS Generator - Online Custom Bullet & Counter
Design custom unordered and ordered lists with images, strings, or counters. Preview and copy the CSS.
Story Prompt Generator - Online Creative Writing Inspiration
Combine random character, setting, conflict, and genre to generate unique story prompts. Over 10,000 possible combinations. Perfect for overcoming writer's block.
Batch QR Code Generator - Online Multiple Codes at Once
Paste a list of URLs or texts and generate QR codes all at once. Download as individual images or a single sheet.
Kubernetes Deployment YAML Generator - Online K8s Spec
Fill in container image and ports. Generate a Deployment and Service YAML with best practices. Start your K8s journey.
Kitchen Timer - Online Multiple Preset Countdowns
Run multiple named timers simultaneously for cooking. Presets like pasta, rice, etc. Audio alarm. Works in background.
Sound Effect Generator - Online Create 8-bit & Retro Noises
Generate classic retro sound effects (coin, jump, explosion) using oscillators and noise. Play and download as WAV. Web Audio API fun.
<dialog> Modal Generator - Online Native HTML Modal
Build an accessible modal using the native <dialog> element. Customize backdrop, content, and open/close logic. Copy the code.
Online Audio Recorder - Record Voice & Export WAV
Record audio from your microphone and export as a WAV file. Monitor levels. Processed entirely in your browser.
Online Audio Recorder - Record Voice & Export WAV
Record audio from your microphone and export as a WAV file. Monitor levels. Processed entirely in your browser.
Area Converter - Online Square Feet & Acre Hectare Tool
Convert between square meters, square feet, acres, hectares, and more. Essential for real estate and land measurements. Instant results, private data.
SVG Morphing Playground – Online Smooth Path Transformation
Paste start and end SVG paths with the same number of points and preview a smooth morph animation. Copy SMIL code.
Invoice Number Generator - Online Sequential & Random
Generate the next sequential invoice number with optional prefix and date stamp. Keep track locally or export.
Web Crypto Key Generator - Online Generate RSA/EC Keys
Generate cryptographic key pairs using the Web Crypto API. Export as JWK or raw. No server needed; pure security.
Date to Unix Epoch Converter - Online Human to Timestamp
Convert any human‑readable date to a Unix timestamp in seconds or milliseconds. Also shows ISO 8601. Clean interface.
JSON to YAML Converter - Online Data Serialization Tool
Convert JSON data structures to clean, human-readable YAML. Indentation and formatting preserved. All processing done locally for your privacy.