CSS Border Radius Generator
Generate border-radius CSS for uniform rounding or per-corner customization, including special shapes like blobs and leaves.
Input
- Mode:
uniform (all corners equal) or per-corner
- Uniform value: integer 0–9999 px (default
16)
- Per-corner values: top-left, top-right, bottom-right, bottom-left in px (defaults
16 16 16 16)
Output
- CSS property:
border-radius: <value>;
- Tailwind CSS class equivalent
Instructions
- Parse the user's request. Determine if all corners are the same or each is specified separately.
- Compute the CSS value:
- All corners equal:
border-radius: <value>px;
- Mixed corners:
border-radius: <tl>px <tr>px <br>px <bl>px;
- Compute the Tailwind class:
- All equal, value is 0:
rounded-none
- All equal, value >= 9999:
rounded-full
- All equal, other:
rounded-[<value>px]
- Mixed:
rounded-[<tl>px_<tr>px_<br>px_<bl>px]
- Output both CSS and Tailwind.
- If the user mentions a shape preset, map it:
- None →
0 0 0 0
- Small →
4 4 4 4
- Medium →
8 8 8 8
- Large →
16 16 16 16
- XL →
24 24 24 24
- Full / pill / circle →
9999 9999 9999 9999
- Blob →
30px 70px 70px 30px
- Leaf →
0px 50px 0px 50px
Options
topLeft: 0–9999 — default 16
topRight: 0–9999 — default 16
bottomRight: 0–9999 — default 16
bottomLeft: 0–9999 — default 16
linked: if true, all corners use the same value
Examples
Input: "Rounded corners, 12px all sides"
Output:
border-radius: 12px;
Tailwind: rounded-[12px]
Input: "Blob shape border radius"
Output:
border-radius: 30px 70px 70px 30px;
Tailwind: rounded-[30px_70px_70px_30px]
Input: "Full pill / circle border radius"
Output:
border-radius: 9999px;
Tailwind: rounded-full
Input: "Top corners 24px, bottom corners 0"
Output:
border-radius: 24px 24px 0px 0px;
Tailwind: rounded-[24px_24px_0px_0px]
Error Handling
- If a value is negative, set it to 0 and inform the user that border-radius cannot be negative.
- If a value exceeds 9999, cap at 9999 (used to represent fully rounded /
rounded-full).
- If the user provides a unit other than px (e.g., rem, %), note the unit in the output and omit the Tailwind arbitrary value if not px.