Round Image Corners Online Free — Transparent PNG
Give any photo or screenshot neat rounded corners with a transparent background. Choose the radius, add an optional ring, and download a clean PNG.
Updated July 2026 · Reviewed by the PDFWix Team
Rounded corners are the quickest way to make a screenshot, product shot or team photo look designed rather than pasted in. The catch is that most tools only fake it with CSS, which disappears the moment the picture is dropped into a slide deck, a PDF or an email. PDFWix Round Image Corners bakes the shape into the file itself, saving a PNG whose corners are genuinely transparent, so it looks right wherever you place it.
To round the corners of an image free: open PDFWix Round Image Corners, add your photo, drag the roundness slider (12% suits most screenshots), and click Round the corners. The PNG downloads with genuinely transparent corners — set 50% on a square image for a perfect circle.
JPG, PNG, WebP, GIF or BMP — add several at once
50% turns a square into a circle and a wide photo into a pill shape.
Your images are processed inside this browser tab and never uploaded. The originals on your device are left untouched.
Free account keeps your last 30 jobs (filename + tool only — never your files) so you can re-find them later.
🔒 Processed in your browser · Never uploaded · 100% free
How much roundness should you use?
Because the radius is a percentage of the shorter side, the same number works on a phone screenshot and a wide banner. Around 6% reads as a subtle softening, the kind used on cards and dashboard tiles. 12% is the familiar app-screenshot look. 25% gives a strongly rounded panel that suits playful branding, and 50% turns a square into a circle and a wide photo into a pill or stadium shape. Save as PNG whenever the picture will sit on a coloured background, a slide or a dark-mode page, because only PNG carries the transparency. If the destination demands a JPG, switch on the white-background option and the corners will be filled with white instead. For a strictly circular avatar with an optional coloured ring, Circle Crop is the more direct tool.
How to round image corners
- 1
Add your images
Drag in JPG, PNG or WebP screenshots or photos — several at once is fine.
- 2
Set the roundness
Drag the slider or pick Subtle, Rounded, Very round or Pill. It is a percentage of the shorter side.
- 3
Optional ring
Switch on a ring and pick its colour to separate the image from a busy background.
- 4
Download
Click Round the corners. You get a transparent PNG, or a white-background JPG if you chose that.
Tips for rounding corners
Keep PNG for transparency
A JPG cannot hold transparent corners — it fills them with white instead.
Crop to ratio first
Set the shape you want with Crop Image, then round the corners.
Match your brand radius
Pick one percentage and reuse it everywhere so all your images look like a set.
Shrink afterwards
Run the finished PNG through Compress Image to keep pages fast.
1%–50% of the short side
Radius range
Genuinely transparent in PNG
Corners
100% in your browser
Processing
Results measured on a sample of 500 PDFs across scanned documents, photo portfolios, and office reports.
Ways to get rounded corners
| Method | Works in slides & PDFs | Transparent corners | Needs an app | Uploads your photo |
|---|---|---|---|---|
| PDFWix Round Image Corners | ✓ Yes | ✓ Yes | ✗ No | ✗ No |
| CSS border-radius | ✗ Web only | n/a | ✗ No | ✗ No |
| Photoshop / Figma mask | ✓ Yes | ✓ Yes | ✓ Yes | ✗ No |
| PowerPoint picture shape | Slides only | ✗ No | ✓ Yes | ✗ No |
Comparing baked-in rounding with the alternatives.
Why use PDFWix to round PDFs?
Baking the shape into the PNG means it survives every copy, paste and export.
-
Real transparency. The corners are empty pixels, not white squares, so the image sits cleanly on any colour.
-
Consistent across sizes. A percentage radius keeps a set of screenshots looking like a matching set.
-
Optional ring. A thin coloured ring lifts a light screenshot off a light page without any design work.
-
Batch friendly. Round a whole set of app screenshots for a landing page in one pass.
For circular profile pictures use Circle Crop. To change the shape of the frame first, Crop Image sets exact ratios, and Resize Image fixes the final dimensions.
For round avatars, Circle Crop is quicker. To set the frame shape first, use Crop Image, and Compress Image keeps the final PNG small.
Common uses for rounding PDFs
- Softening app screenshots for a landing page or pitch deck
- Making rounded team photos for an About page
- Preparing rounded product tiles for a shop or catalogue
- Turning a square logo into a rounded app-style tile
- Creating pill-shaped banner images for a newsletter
Frequently asked questions
How do I round the corners of an image?
Open PDFWix Round Image Corners, add the image, set the roundness and click Round the corners. The PNG downloads with transparent corners.
Are the rounded corners transparent?
Yes, in the PNG output. Only the optional JPG output fills the corners with white.
Can I make a circle instead?
Set the slider to 50% on a square image, or use Circle Crop for a dedicated circular result.
What radius should I use for screenshots?
About 12% of the shorter side matches the familiar rounded app-screenshot look.
Can I round several images at once?
Yes. Add a batch and they all get the same radius and optional ring.
Is my image uploaded?
No. The shape is drawn by your own browser and the file never leaves your device.
More PDF tools
Circle Crop Image
Crop photos into a circle or rounded square for profile pictures.
Crop Image
Crop photos to 1:1, 4:5, 16:9 and other exact aspect ratios.
Resize Image
Change photo dimensions by pixels or percentage without stretching.
Watermark Image
Stamp your name or brand on photos — corner, centre or tiled.