Box Shadow Generator
Free CSS box shadow generator with live preview. Adjust offset, blur, spread, color locally in your browser. No upload, no account required.
Runs locally in your browser. Your input is not uploaded to DevToolMate servers.
Developer Quick Tips
- Adjust horizontal offset, vertical offset, blur, and spread with numeric controls while watching the live preview update in real time.
- Toggle inset to create sunken shadows for pressed buttons, recessed panels, and inset border effects on UI components.
- Enter shadow colors as HEX, rgb(), or rgba(); the tool validates input and displays clear error messages for invalid formats.
- Copy the complete box-shadow CSS declaration with semicolon, or download as shadow.css for offline reference and reuse.
- All calculations run locally in your browser; your input stays on your device for the current session only.
Frequently asked questions
What is a CSS box shadow generator and how does it work?
A CSS box shadow generator lets you compose box-shadow declarations by adjusting offset, blur, spread, and color with numeric controls. This tool generates the CSS locally in your browser and displays a live preview so you can see the effect before copying.
Does the CSS box shadow generator upload my data?
No. All processing runs entirely in your browser. Your shadow values, colors, offset settings, and calculations stay on your device and are never uploaded to DevToolMate servers.
What color formats does the CSS shadow generator support?
HEX (#000000), rgb(0, 0, 0), and rgba(0, 0, 0, 0.5) are all supported. The tool validates your input and displays clear error messages for invalid color values.
Can I generate inset shadows with this tool?
Yes. Toggle the inset option to generate inset box-shadow declarations for pressed buttons, sunken panels, recessed borders, and other inset shadow effects.
Is the CSS box shadow generator free and do I need an account?
Yes, completely free with no account required. All processing happens on your device for the current session, and you can use it as many times as you need.
How do I copy the generated box-shadow CSS code?
The tool displays the complete box-shadow declaration with a semicolon ready to copy. Click the copy button or download as shadow.css for offline reference.
Does my generated CSS persist after I close the browser tab?
No. Your tool input and generated CSS are only available for the current session. Once you close the browser tab, the values are cleared for privacy.
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