Free Toolkit

Placeholder Image GeneratorGenerate customizable placeholder images with solid colors or gradients for mockups and prototyping.

Placeholder Image Generator illustration
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Placeholder Image Generator

Generate customizable placeholder images with solid colors or gradients for mockups and prototyping.

How to Use
1

Set Dimensions

Enter width and height in pixels.

2

Choose Style

Select solid color or gradient, customize text.

3

Download

Download as PNG.

What Is Placeholder Image Generator?

Creates custom placeholder images using the HTML Canvas API in your browser. Choose any dimensions, solid or gradient backgrounds, and custom text overlays. Download as PNG. Works offline. Perfect for web development, wireframes, responsive testing, and email templates.

Why Use Our Placeholder Image Generator?

  • Any dimension
  • Solid and gradient backgrounds
  • Custom text overlay
  • Download as PNG
  • Works offline

Common Use Cases

Web Development

Placeholders before final assets.

Wireframes

Correctly-sized placeholders for mockups.

Responsive Testing

Images at specific breakpoint sizes.

Technical Guide

HTML5 Canvas API. Creates canvas, draws background (solid or gradient via createLinearGradient()), renders text with auto font sizing, exports via toDataURL() as PNG.

Tips & Best Practices

  • 1
    Common sizes: 1200x630 (social), 300x250 (ads)
  • 2
    Gradients for better presentations
  • 3
    Use contrasting text colors

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Frequently Asked Questions

QFormat?
PNG files, universally compatible.
QMax size?
Browser canvas limits, typically 16,384px.

About Placeholder Image Generator

Placeholder Image Generator is a free online tool from FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration required. No ads. Just fast, reliable tools.