transparent_image

Package Overview

Package selection guidance compiled from public package information, community data, and project usage.

A lightweight Dart package that provides a transparent image as a Uint8List, useful for placeholder images in UI development. It enables consistent rendering of invisible or transparent images across multiple platforms without requiring external assets. Ideal for testing, layout prototyping, or when an image placeholder is needed without visual content. The package is platform-agnostic and integrates seamlessly with Flutter applications.

Use cases

Placeholder images in UI testing
Layout prototyping without visual assets
Testing image placeholders
Cross-platform UI consistency
Requiring minimal asset overhead

Key features

Provides a transparent image as Uint8List
No external asset files required
Cross-platform compatibility
Lightweight and simple API
Supports all major Flutter platforms

Suitable for

Developers needing image placeholders
UI/UX prototyping workflows
Test environments requiring neutral images
Projects minimizing asset size
Flutter apps targeting multiple platforms

Considerations

Not suitable for actual image display
Requires manual handling of image data
Limited to transparent image use case
Does not support image manipulation
Best used as a temporary or placeholder solution

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

A simple transparent image. Represented as a Uint8List, which was originally extracted from the Flutter codebase (was private in the test package).

It's a silly, simple library, but I found I needed transparent images in a few projects and found this is the simplest way to represent it :)

Usage

This package exports one constant: kTransparentImage.

Image Widget

Displays the transparent image.

Image.memory(kTransparentImage);

ImageProvider

MemoryImage(kTransparentImage);

FadeInImage Widget

A more useful example, and the reason I originally extracted this from the Flutter codebase!

A complete example can be seen on the Flutter website.

FadeInImage.memoryNetwork(
    placeholder: kTransparentImage,
    image: 'https://picsum.photos/250?image=9',
  ),
);

Contributors

Flutter team
Brian Egan