How this works in your browser
A new canvas is created larger than your image by twice the border thickness in each direction, filled entirely with your chosen colour, and then your image is drawn into the centre of it. That order is what makes the operation genuinely non-destructive: the border becomes the area around your photo rather than a frame painted over its edges, so no original pixel is covered or lost. Because the source is drawn at full resolution into a correspondingly larger canvas, there is no resampling and the photograph itself is untouched. The whole composition happens in your browser tab with nothing uploaded.
Add Border vs. traditional online converters
| Feature | Add Border (in-browser) | Traditional online converters |
|---|---|---|
| File upload required | No - never leaves your device | Yes - file is sent to a server |
| Processing queue | None - starts instantly | Often, especially at peak times |
| Watermark on output | Never | Common on free plans |
| Usage limits | None - free, unlimited use | Often capped per day or file size |
| Works offline once loaded | Yes, for most tools | No - requires a live connection |
| Account required | No | Often, for anything beyond a trial |
Who uses Add Border
Fitting social media dimensions
Pad a tall or wide photo toward a square without cropping any of the picture away.
Framing prints and gallery walls
Add a clean white or black margin so a printed photo has breathing room inside its frame.
Separating from a background
Give an image a defined edge when it sits on a busy or similarly coloured page.
Consistent post sets
Apply the same frame across several images so a series looks intentionally grouped.
How to use Add Border
- 1
Open the Add Border tool
Go to tools.slaytic.com and open the Add Border tool. No sign-up or account required.
- 2
Drop your image
Add a JPG, PNG or WEBP file. It is processed locally in your browser.
- 3
Set colour and thickness
Choose the border colour and how thick it should be on each side.
- 4
Download the framed image
Save the result, now larger by the border thickness on every side.
Frequently asked questions
Can I choose the border colour?
Yes, pick any colour and thickness before generating the result.
Does the border change the image dimensions?
Yes, the border is added outside the original image, so the final dimensions increase by the border thickness on each side.
What formats are supported?
JPG, PNG and WEBP images can all have a border added.
Will a border help my photo fit a square post?
Yes, and it is one of the most practical uses. Adding a border changes the overall proportions, so a tall or wide photo can be brought closer to square without cropping anything out of the picture. Choosing white or black usually reads as a deliberate frame rather than padding.
How thick should the border be?
Scale it to the image rather than picking a fixed number. A twenty pixel border is a bold frame on a small thumbnail and effectively invisible on a large photograph, so judge it against the result rather than the value.
Does the border reduce the visible image area?
No. It is added outside the original, so nothing is cropped or covered. The file simply becomes larger by the border thickness on each side.
Is my image uploaded anywhere?
No. The border is drawn inside your browser tab.