Custom Corner Boundary Generator
You don't have to round every corner. Create unique shapes by specifically targeting only the top-left or bottom-right corners of your divs.
When to use this solution:
Use this when designing chat bubbles, tab navigation, or creative cards where asymmetry is part of the brand.
Common Use Cases
1Step-by-Step Guide
De-link corners
Ensure you are editing corners independently rather than using one global value.
Set target values
Increase the radius for only the 2 or 3 corners you want rounded.
Preview the shape
Keep adjusting until the balance between sharp and soft edges looks right.
Copy independent CSS
The tool generates the 4-value shorthand (e.g., 20px 0 20px 0) for you.
Ready to get started?
Use our free tool to solve this problem in seconds. No installation required.
Round Specific CornersFrequently Asked Questions
What is the order of corners in CSS?
It goes Clockwise starting from Top-Left: Top-Left, Top-Right, Bottom-Right, Bottom-Left.
Can I use percentages?
Yes, 50% for one corner creates a quarter-circle effect.