Image Tools · Browser-based utility
Add Border, Rounded Corners & Padding Online Free
Add outer padding, a border and rounded corners to an image, choose background and border colors, preview the result and save PNG.
What this tool does
Add outer padding, a border and rounded corners to an image, choose background and border colors, preview the result and save PNG.
People often describe this task with phrases such as add border to image, rounded corners image, add padding to photo and image frame online. This page uses those terms only where they refer to the same underlying function.
How to use the Add Border, Rounded Corners & Padding
- Open the Add Border, Rounded Corners & Padding page and select or enter the source data required by the tool.
- Review the available controls instead of accepting defaults blindly when the destination has a size, format, layout or compatibility requirement.
- Run the operation and inspect the preview, status or generated result before treating it as final.
- Download or copy PNG and verify it in the destination application, browser, viewer or workflow that will actually use it.
Use the interactive tool above for the actual operation. The documentation below explains what the controls mean, what changes in the file/data, and how to troubleshoot common results.
Settings and capabilities explained
| # | Control or capability |
|---|---|
| 1 | Outer padding in pixels |
| 2 | Border thickness in pixels |
| 3 | Corner radius in pixels |
| 4 | Background color |
| 5 | Border color |
| 6 | Preview |
| 7 | PNG save |
Supported input and output
- Input: one image
- Output: PNG
How it works technically
Raster image operations work on decoded pixel data. Dimensions, alpha transparency, color representation and encoder settings can all affect the result independently.
Padding increases the canvas outside the original image. A border occupies pixels around the image area, while corner radius clips corners to a curve.
PNG preserves the composited result without JPEG-style loss.
Common use cases
- Add whitespace around a product photo
- Create rounded screenshots
- Add a colored frame
- Prepare a card-style social image
Choosing the right settings
- Choose radius relative to image size; very large radius values can create pill/circle-like corners.
- Use padding to prevent borders from touching surrounding page content.
Common problems and fixes
Rounded corners are hard to see
Increase the radius or use a contrasting outer background.
Browser processing and privacy notes
The source code for this build performs the documented file transformation or analysis from browser JavaScript/Web APIs, and the video tools load FFmpeg.wasm for media processing. The site also contains third-party analytics, font/CDN and advertising scripts that can make ordinary network requests. Therefore, the precise claim made here is limited to the tool routine: it does not need a separate AutoClip file-upload API in order to perform the documented local operation.
For sensitive files, you should still use your browser’s developer tools or network controls if you need to independently verify the behavior of every third-party request in your environment.
Frequently asked questions
What does the Add Border, Rounded Corners & Padding do?
Add outer padding, a border and rounded corners to an image, choose background and border colors, preview the result and save PNG.
What input and output does it use?
Input: one image Output: PNG Outputs include PNG.
Do I need to install desktop software?
No desktop installation is required for this page. The interactive workflow runs from the web browser. Some advanced media features load browser-side JavaScript/WebAssembly libraries when needed.
Are selected files processed through the tool interface?
Yes. The implementation reads selected files with browser APIs and performs the documented transformation or analysis in the page. External libraries, analytics and advertising scripts may make their own network requests, so this statement is about the file-processing routine itself.
Rounded corners are hard to see?
Increase the radius or use a contrasting outer background.