Local image processing
The image is handled by your browser canvas, so the file does not need to leave your device.
Add rounded corners to images online.
Drop in a screenshot, product image, avatar, or social post and export a polished image with rounded corners, borders, padding, and clean backgrounds.
A quick way to make screenshots and images feel finished.
Rounded image corners are useful for app screenshots, product mockups, avatars, thumbnails, social posts, blog images, and design handoffs. This tool keeps the workflow simple: choose an image, tune the radius and border, then export.
Transparent corners
Export PNG or WebP with a transparent background for clean placement in websites, slides, and documents.
Border and padding controls
Add a thin outline, soft spacing, or a solid background when the image needs more contrast.
Common image polishing tasks, without opening a design app.
Most people do not need a full editor for this job. They need one small change, a quick preview, and a clean export. These guides cover the most common cases and link back to the tool.
Corner radius
Round image corners online
Use a simple radius workflow for product photos, app screens, avatars, and blog images.
- Best for quick visual polish
- Works with PNG, JPG, and WebP
- Includes a practical radius checklist
Border
Add a border to an image online
Add a thin outline, colored frame, padding, or soft shadow when an image blends into the page.
- Useful for white screenshots
- Good for docs and landing pages
- Explains border width and contrast
Transparent PNG
Make a transparent rounded PNG
Keep the corners transparent for websites, slide decks, documents, and layered designs.
- Use PNG or WebP export
- Avoid white corner boxes
- Best for flexible placement
Screenshots
Round screenshot corners
Turn plain screenshots into cleaner visuals for changelogs, support docs, and social posts.
- Good for SaaS screenshots
- Add padding and background color
- Export polished preview images
Decision guides that help you pick the right settings faster.
These pages are less about the button clicks and more about the judgment behind them: how much radius looks natural, when transparency matters, and which export format makes sense for the final destination.
Radius decisions
Best corner radius for screenshots
Use practical ranges for UI screenshots, launch graphics, docs, and social previews instead of guessing.
- Recommended radius by screenshot type
- How to avoid over-rounding
- Good defaults for product teams
Format decisions
PNG vs JPG vs WebP for rounded images
Choose the right export format based on transparency, file size, screenshot clarity, and reuse needs.
- When PNG is worth the extra size
- When JPG is still enough
- When WebP gives the best balance
Example outcomes for the jobs people actually have.
You usually are not editing an image in the abstract. You are trying to make a screenshot work in docs, a preview card work on social, or a profile image feel cleaner. These starting recipes map the tool to those real jobs.
Documentation
Readable help-center screenshot
A small radius and faint border keep the screenshot separated from body text without making it feel styled for marketing.
Social
Launch-ready screenshot card
Extra padding and a soft shadow make a plain screenshot feel deliberate enough for release notes, X posts, or changelog promos.
Profile
Clean avatar or team image
A strong radius with almost no extra treatment works well when the image will live inside profile UIs or directory cards.
Built for one small job, not as a generic image editor.
RoundPic exists for people who keep hitting the same tiny visual task: make a screenshot, avatar, or product image look cleaner without opening a full design app. It stays deliberately narrow so the workflow stays fast.
Focused scope
The tool is intentionally limited to radius, border, padding, background, and export choices that show up in day-to-day publishing work.
Browser-first privacy
Your image stays in the browser session, which makes the tool more useful for quick internal screenshots and rough drafts.
Human guidance
The supporting pages focus on practical decisions like radius ranges and export tradeoffs instead of repeating generic image-editing advice.
Product notes, browser behavior, and current limits.
One thing that makes a small tool trustworthy is being clear about what it does well, where it may feel rough, and what kind of maintenance it is getting. RoundPic is intentionally simple, but it is not pretending every browser and every image size behave identically.
Current update focus
Recent work has focused on clearer presets, stronger screenshot workflows, better export guidance, and more useful support pages around radius and format decisions.
Browser notes
RoundPic is best on current Chrome, Edge, and Safari-class browsers. It also works on mobile, although very large images are easier to handle on desktop screens with more memory and space.
Known limits
This tool is designed for quick single-image cleanup, not batch processing, layered editing, or template composition. If you need multi-step design work, a full editor is still the better fit.
Large image behavior
Very high-resolution files may feel slower on older laptops or phones because everything is rendered locally in the browser.
Transparency reminder
If you need rounded corners to stay transparent, keep the background transparent and export as PNG or WebP instead of JPG.
Feedback channel
If a browser-specific export issue shows up, the fastest way to improve the tool is to report the browser, image type, and settings used via the contact page.
Last product-content refresh: July 14, 2026. The tool is intentionally narrow, and that narrowness is part of the product quality, not a missing feature list.
FAQ
How do I add rounded corners to an image?
Upload or drag your image into the tool, move the corner radius slider, and download the result as PNG, JPG, or WebP.
Will this upload my image?
No. The rounded image is generated locally in your browser. The tool does not need a server upload to work.
Which format should I use?
Use PNG for transparent corners, JPG for smaller photo files, and WebP when you want a modern web-friendly format.
Can I add a border around the image?
Yes. Use the border width slider and color picker to add a clean outline around the rounded image.
Does it work on mobile?
Yes. The controls and preview are responsive, although very large images are easier to edit on a desktop screen.
Can I use it for screenshots?
Yes. It works especially well for app screenshots, website captures, product mockups, and social media images.