Live Image Generator

Create your custom placeholder image in real-time. Adjust the parameters and see instant results.

Min: 50px, Max: 4000px
Min: 50px, Max: 4000px
Leave blank to generate without central text (dimensions will be placed near the credit area).
Hex code or color name
Hex code or color name
Readability Check

Choose colors to check text readability.

Live preview of the placeholder image generator - customize dimensions, text, and colors in real-time
fillth.at/600x400/FillThat/667eea/white

Why FillThat?

Instant Generation

Generate images on-the-fly with zero setup. Just use a URL.

Fully Customizable

Control size, text, colors, and gradients with URL parameters.

Lightning Fast

Cached responses and optimized generation for maximum speed.

No API Key

No registration, no API keys. Just simple URLs that work.

AI Powered (Optional)

Integrate with DALL-E or Stability AI for advanced images.

Examples

Blog Post - Red background placeholder image (400x300)
/400x300/Blog-Post/FF6B6B/white
Product Image - Teal background placeholder (400x300)
/400x300/Product_Image/4ECDC4/2C3E50
Hero Section - Purple to pink gradient placeholder (400x300)
/400x300/Hero-Section/purple/white?gradient=true&gradientend=pink

Text Generation

Generate placeholder copy for UI mocks, blog drafts, landing page wireframes, and API testing. Choose style and volume, then copy instantly.

Generate text

Output is available via URL route and API endpoint.

URL Format /text/3/p/lorem Format: /text/{amount}/{type}/{style}
Generated Text

Select options and click Generate Text to preview output here.

How to Use

Basic URL Structure:

fillth.at/WIDTHxHEIGHT/TEXT/BG_COLOR/TEXT_COLOR

Parameters:

  • WIDTH x HEIGHT - Image dimensions (e.g., 800x600)
  • TEXT - Text to display (use - or _ for spaces; use - to intentionally generate without centered text)
  • BG_COLOR - Background color (hex or name)
  • TEXT_COLOR - Text color (hex or name)

Optional Query Parameters:

  • ?gradient=true - Enable gradient background
  • &gradientend=COLOR - Gradient end color
  • &fontsize=NUMBER - Custom font size