[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"blog-post-en-how-to-add-rounded-corners-to-image":3},{"code":4,"message":5,"data":6},200,"ok",{"id":7,"slug":8,"title":9,"description":10,"content":11,"cover":12,"keywords":13,"tool":14,"tool_label":15,"reading_time":16,"status":17,"published_at":18,"created_at":18,"updated_at":18,"locale":19},36,"how-to-add-rounded-corners-to-image","How to Add Rounded Corners to an Image — Free Online Tool","Add smooth rounded corners to any image online. Adjust corner radius, set background color, and download — free, no software needed.","## Why Add Rounded Corners?\n\nRounded corners give images a polished, modern look. They soften the harsh edges of rectangular photos and make them feel more integrated into designs — which is why every major design system (iOS, Material Design, Windows Fluent) uses rounded corners extensively.\n\nCommon use cases:\n\n- **App screenshots** — rounded corners match iOS and Android device aesthetics for marketing materials.\n- **Social media graphics** — cards, thumbnails, and story images look more professional with rounded edges.\n- **Blog post images** — rounded corners add visual polish to hero images and inline photos.\n- **Presentation slides** — images with rounded corners look cleaner than sharp rectangles.\n- **Profile images** — create a modern avatar style that's softer than a circle crop but more interesting than a square.\n- **Product mockups** — match the rounded aesthetic of modern device frames and UI elements.\n\n## How to Add Rounded Corners Online (Step by Step)\n\nThe [PPImage Rounded Corners tool](\u002Frounded-corners) adds customizable rounded corners to any image instantly.\n\n**Step 1 — Open the tool**\n\nGo to [ppimage.com\u002Frounded-corners](\u002Frounded-corners). No download or account required.\n\n**Step 2 — Upload your image**\n\nDrag and drop your image or click to upload. JPG, PNG, and WebP formats are supported.\n\n**Step 3 — Set the corner radius**\n\nUse the radius slider to control how rounded the corners are. A small radius (10–20px) creates a subtle rounding, while a large radius creates a more dramatic \\\"squircle\\\" or pill shape.\n\n**Step 4 — Choose the background**\n\nSelect what appears behind the rounded corners:\n- **Transparent** — exports as PNG with alpha channel (best for layering in designs).\n- **White** — clean white corners for documents and presentations.\n- **Custom color** — match your brand or background color.\n\n**Step 5 — Download**\n\nClick Download to save your rounded image. Transparent backgrounds are saved as PNG; solid backgrounds can be saved as JPG or PNG.\n\n## Corner Radius Guide\n\n| Radius | Effect | Best for |\n|---|---|---|\n| 5–15 px | Subtle softening | Blog images, formal documents |\n| 20–40 px | Noticeable rounding | Social media, app screenshots |\n| 50–80 px | Strong rounding | Cards, thumbnails, modern design |\n| 100+ px | Pill \u002F squircle shape | Avatars, badges, buttons |\n\n## Pro Tips\n\n- **Use transparent backgrounds** — export as PNG with transparency so the rounded image blends seamlessly into any background color.\n- **Match your design system** — if you're designing for iOS, use a 22% corner radius (corner radius ÷ shorter side). For Material Design, 16dp is standard.\n- **Batch process** — upload multiple images at once to apply the same corner radius to an entire set.\n- **Combine with borders** — add rounded corners first, then use the [Border tool](\u002Fborder) to add a colored border for extra polish.\n- **Consider the aspect ratio** — very wide or very tall images may need a proportionally larger radius to make the rounding visible.\n\n## Related Tools\n\n- [Add Border](\u002Fborder) — add a colored border around your rounded image.\n- [Image Cropper](\u002Fcrop) — crop your image to the right dimensions before rounding.\n- [Social Media Resizer](\u002Fsocial-resize) — resize to platform-specific dimensions, then add rounded corners.\n\nPolish your images with the free [Rounded Corners tool](\u002Frounded-corners).","","rounded corners image,add rounded corners,round corners online,image border radius","rounded-corners","Rounded Corners",4,"published","2026-03-31 23:25:06","en"]