Test Image Maker is a Chrome extension for generating test images without leaving the browser. Pick width and height, optional text, a gradient or pattern background, and export in the format your pipeline actually expects.
Features
- Dimensions — Set width and height explicitly (great for layout and responsive checks).
- Formats — PNG, JPG, GIF, TIFF, BMP, PDF, WebP, HEIC, and more from one UI.
- Backgrounds — Gradient or pattern fills; preview updates as you change settings.
- Text — Add a label, tune alignment, adjust size for screenshots and mocks.
- Favorites — Save combinations you use all the time and reload them quickly.
- Export — Download or copy to clipboard from the popup.
How to use it
- Install from the Chrome Web Store (button above).
- Click the extension icon to open the popup.
- Set width, height, and output format.
- Choose gradient or pattern for the background.
- Add optional text and alignment.
- Use Download or Copy; use Favorites to store presets you reuse.
Demo
Who it's for
- Developers and designers who need exact placeholder sizes.
- QA folks who need many formats and resolutions for tests.
- Anyone who wants a quick labeled image without opening Photoshop.
Privacy
Test Image Maker privacy policy — no data collection; it runs locally.