Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

Do I need to install any software to use NanoTools?

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

What file formats are supported?

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

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Placeholder Image Generator - Create Dummy Images

Generate placeholder images online for free. Create dummy images for mockups. Custom dimensions and colors.

Drop an image here or click to browse

image/* • Max 50MB

What This Tool Does

Creates custom placeholder images with any dimensions
Adds customizable text labels and dimensions
Selects background colors or generates random colors
Specifies exact width and height in pixels
Generates multiple placeholders in batches
Provides instant download in common formats

How to Use

1
Set dimensions
Enter width and height for your placeholder image
2
Customize appearance
Choose background color and add optional text label
3
Generate placeholder
Click to create the placeholder image
4
Download or copy
Save the image or copy the URL for use in projects

How it works

Set dimensions

Enter width and height for your placeholder image

Customize appearance

Choose background color and add optional text label

Generate placeholder

Click to create the placeholder image

Download or copy

Save the image or copy the URL for use in projects

Use Cases

Creating temporary images for website development and testing
Building design mockups and wireframes with sized placeholders
Testing responsive layouts with various image dimensions
Generating quick prototypes without needing real images
Creating thumbnail placeholders for content management systems
Designing presentation slides with appropriately sized image blocks

Frequently Asked Questions

What dimensions can I create?

You can specify any width and height combination. Common sizes include 300x200, 800x600, 1920x1080, etc.

Can I add custom text?

Yes, you can add text labels like "Logo Here", "Hero Image", or display the dimensions.

What file format are placeholders?

Placeholders are typically generated as PNG or JPG files for maximum compatibility.

Can I use these in production?

Placeholders are intended for development and mockups. Replace with real images before production launch.

Are there pre-set common sizes?

Many versions offer quick-select buttons for common sizes like social media dimensions and standard photo ratios.