Add Border to Image Online
Add a colored border or rounded corners to any image — privately in your browser, with a live preview.
Physical photo prints have always relied on borders. Film darkroom prints ran a 3–5 mm white bleed to mask enlarger edges; gallery-matted work adds a 3–6 cm mounting board to make a 5×7 print feel substantial at 16×20. That visual language carries into digital sharing — a thin white border on a phone shot reads as intentional composition, not a raw screenshot.
Color and mood interact more than expected. A warm cream (#FFF8F0) border softens a flash-heavy photo without touching the subject. Dark charcoal on a bright landscape pushes the eye inward. Matching border color to a brand accent is one of the fastest ways to apply visual identity to product images without opening Photoshop or Canva.
The canvas grows with each border pass — a 4% border on a 2000 px image produces a 2160 px wide result. Plan final dimensions if your destination has a size constraint: apply the border first, then use the image resizer to hit the target. For photos that need a specific aspect ratio before framing, the crop tool is the right first stop.
Drop an image here to add a border
PNG · JPEG · WebP — color, thickness, and rounded corners
How to add a border to an image online
Drop your image into the box above. Set the Thickness (as a percentage of the shorter image side, so the border feels right at any resolution), pick a Color, and optionally slide the Corner radius. The preview updates instantly. Click Export to render the result at full resolution and download it.
Border presets that work well
- Subtle frame — Thickness 2%, white, no rounding
- Polaroid look — Thickness 8%, white, rounding 4%
- Instagram-style — Thickness 3%, white, rounding 10%
- Avatar circle — Thickness 5%, white, rounding 50% (square input)
- Dramatic mat — Thickness 15%, black, no rounding
What you can do
- Adjustable thickness from 0% to 20% of the shorter image side
- Full color picker for the border
- Optional rounded corners (0–50% radius)
- Live preview while adjusting
- No watermark, no signup, no upload
Frequently asked questions
How do I add a border to an image online for free?
Drop your image into the box above. Set the Thickness, Color, and (optionally) Corner radius. The preview updates as you adjust. Click Export, then Download. No account, no upload, no watermark.
Does ToolChop upload my photo?
No. The border is drawn in your browser using the Canvas API. Your image never leaves your device — there is no upload, no temporary storage, and no copy on our servers.
What is the difference between border thickness in percent and pixels?
Thickness here is a percentage of the shorter image side. That way the same percentage looks right whether your image is 800 px or 4000 px. A 4% border on a 2000-px image is 80 px; on a 500-px image it is 20 px. Both feel proportional.
Can I make the border just a thin outline?
Yes — set Thickness to 1%. On most images that produces a clean 10–40 px line. For an even thinner hairline, use the watermark-remover crop tool first to trim a few pixels off, then apply a 1% border.
How do I add rounded corners to an image?
Slide the Corner radius control. 0% leaves square corners. 50% produces a circular shape (rounded all the way). Common Instagram-style polaroids land around 5–10%; full pills land around 50%.
Will the bordered image keep transparency?
If the background outside the rounded corners would otherwise be transparent and you pick a transparent-looking color, the file is exported as PNG so the alpha channel is preserved. For solid borders on JPEG inputs, JPEG output is kept (smaller file).
Can I add a frame-style multi-color border?
Not yet — the tool supports a single solid border. To stack borders (e.g., black inside, white outside), apply the inner border first, download, and run the result through the tool again with a different color and additional thickness.
What image formats are supported?
PNG, JPEG, WebP, and GIF inputs. Output format matches the input when corners are square; when corners are rounded, output is forced to PNG so the transparent corners survive.
How does the output size compare to the input?
The output dimensions grow by `border × 2` on each side. So a 1920 × 1080 image with a 4% border (≈43 px on the shorter side) becomes roughly 2006 × 1166. The aspect ratio is preserved; only the canvas grows.
Is there a file size limit?
Only your browser's memory. We have bordered 24-megapixel photos without issue. Very large images (50+ MP) may pause briefly during export.
Can I use the tool on a phone or tablet?
Yes. The tool is fully responsive and works in iOS Safari, Android Chrome, and other mobile browsers. Tap to pick an image from your photos or files.
Why use ToolChop instead of Photoshop, Canva, or Preview?
No install, no signup, no upload, and one screen with live preview. ToolChop is the fast choice for one-off image bordering and is the only choice when you do not want the source file to leave your device.
Can I batch border multiple images?
Right now the tool handles one image at a time so you can see the live preview. Batch mode with a saved preset is on the roadmap. For now, dropping each image in sequence is fast — most exports take 1–2 seconds.