Placeholder Image Generator
Custom Placeholders in Seconds
Generate custom placeholder images instantly. Set dimensions, colors, text, and download as PNG or JPEG. Perfect for mockups, wireframes, and prototypes. 100% client-side. Zero data stored.
Placeholder Image Generator Tool
Preset Sizes
Colors
Text
Custom Dimensions
Preview
Export
Common Use Cases
Wireframes & Mockups
Create placeholder images for design mockups and wireframes. Perfect for showing image placement without final assets.
Frontend Development
Use as temporary images during development. Test responsive layouts and image loading without waiting for real content.
Testing & QA
Generate test images of specific sizes for automated testing. Verify image handling across different dimensions and formats.
Content Management
Create placeholder images for CMS templates and themes. Fill empty image slots before real content is available.
Presentations & Demos
Generate custom placeholder images for slides and demos. Show image dimensions and placement clearly to stakeholders.
Prototyping
Create quick placeholder images for interactive prototypes. Focus on functionality and layout without spending time on design assets.
Common Image Sizes
Open Graph
1200 x 630 - Facebook, LinkedIn, Twitter card images
Instagram Post
1080 x 1080 - Square Instagram posts
Instagram Story
1080 x 1920 - Vertical Instagram stories
Video Thumbnails
1280 x 720 - YouTube, Vimeo thumbnails
Banner Ads
300 x 250, 728 x 90, 160 x 600 - Common ad sizes
Desktop Wallpaper
1920 x 1080 - Full HD desktop backgrounds
Frequently Asked Questions
Why We Built Placeholder Image Generator
Designers and developers need placeholder images constantly - for wireframes, mockups, prototypes, and development. Most existing services require internet access, show ads, or charge fees for basic features. Many generate images server-side, meaning your settings and dimensions are tracked. Others require multiple clicks and page loads to get a simple placeholder image.
We built Placeholder Image Generator to solve these problems. It runs 100% in your browser using the Canvas API. No server requests, no tracking, no waiting. Set your dimensions, choose colors, and get your placeholder instantly. The tool works completely offline, making it perfect for developers working on local projects or in environments without reliable internet.
The preset sizes feature saves time by providing quick access to common social media and web dimensions. Need an Open Graph image? One click. Instagram story? One click. The custom text option lets you label placeholders with meaningful names instead of just dimensions, making it easier to identify where each image belongs in your design.
Placeholder Image Generator is part of RJL.io's collection of free developer tools. Check out our QR Code Generator, Barcode Generator, Color Palette Generator, and more. Every tool is 100% client-side, works offline, and respects your privacy.