CSS Triangle Generator
Create perfect CSS triangles instantly. Our free visual generator outputs cross-browser compatible border hacks locally in your browser for total design privacy.
What is the CSS Triangle Generator?
Creating triangles in CSS requires a specific 'border hack'—manipulating thick transparent borders on a zero-width/height element. Remembering the exact border widths and colors for pointing up, down, left, or right is frustrating. This visual generator solves the problem. You choose the direction, width, and color, and the tool instantly generates the correct CSS border properties. Because the process is entirely reliant on your browser's local rendering engine, your design iterations are instantaneous and never logged by an external database.
Why Use Our CSS Triangle Generator?
- No Images Required: Create lightweight geometric shapes using pure CSS.
- Directional Control: Easily point the triangle Up, Down, Left, or Right.
- Total Privacy: Client-side processing means zero design tracking.
- Instant Code Output: Copy the exact border CSS string required.
How to Use the CSS Triangle Generator
Select the direction you want the triangle to point.
Adjust the width and height sliders to change its size.
Choose a solid color for the triangle.
Copy the generated CSS block to use for tooltips or decorative arrows.
Frequently Asked Questions
The CSS triangle trick works by setting an element's width/height to zero and using thick, differently colored borders. Setting adjacent borders to transparent creates the triangular shape.
Yes! The CSS border hack is one of the oldest and most universally supported CSS tricks in web development.
No, the tool operates 100% locally. We do not track or save your design interactions.
All file processing is performed locally in your web browser. We do not upload, store, or view your data.