Generate a Custom Image
Create a solid-color image of any size with an optional centered label. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Generate a Custom Image
- 1. Set Width, Height and Fill color. Enter the pixel dimensions you need and pick a Fill color for the background. These two settings define the base canvas before any label is added.
- 2. Add an optional Label. Type text into the Label field if you want dimensions, a name or a note printed on the image, and choose a Label color that stands out against the fill.
- 3. Generate and download. Click generate to build the PNG and download it. Leave Label empty for a plain solid rectangle, or fill it in for a labeled placeholder.
When to use Generate a Custom Image
Generate a Custom Image builds a solid-color image at any size with an optional centered label, combining what a plain color swatch does with basic text overlay. It suits situations where a placeholder needs to visibly announce its own dimensions or purpose.
- Making labeled placeholder images for a mockup. A wireframe needs several image slots at different sizes, and generating each one with its dimensions printed as the label, like '640×480', makes the mockup self-documenting.
- Creating a dummy asset with a filename hint. A development team needs stand-in images before final assets arrive, and labeling each placeholder with its intended purpose, like 'Hero banner', avoids confusion during review.
- Building a quick test pattern. You need a specific-sized colored image with a visible marker of some kind to confirm an image pipeline resizes or positions assets correctly.
Examples
Placeholder image
Input
640×480, blue, label “640×480”
Output
custom.png: a labeled placeholder
About the Generate a Custom Image tool
Generate a Custom Image is a free online tool that works entirely inside your web browser. Create a solid-color image of any size with an optional centered label. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 200 Image utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 5 settings, including Width (px), Height (px), Fill color and Label (optional), and the result refreshes the moment you change one. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Generate a Custom Image cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.