CSS Triangle Generator
Generate CSS triangles using borders
CSS Triangle Generator is a free online tool from BrowserUtils that generate css triangles using borders. It runs entirely in your browser — your data never leaves your device. No account required.
.triangle {
width: 0;
height: 0;
border-left: 60px solid transparent;
border-right: 60px solid transparent;
border-bottom: 60px solid #06b6d4;
}How to use CSS Triangle Generator
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About CSS Triangle Generator
Free online CSS triangle generator. Create triangles pointing in any direction using the CSS border technique with live preview. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
CSS Triangle Generator specs
- Runtime
- 100% client-side (browser)
- Built on
- CSS Color Module Level 4 conversions (sRGB, OKLCH, OKLAB) and native CSSOM parsing
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
How does the CSS triangle technique work?
CSS triangles are created by setting an element to zero width and height, then using transparent borders on three sides and a colored border on the fourth side.
What directions are supported?
You can generate triangles pointing up, down, left, or right by changing which border is colored.
Can I change the size of the CSS triangle?
Yes, adjust the border width to control the triangle size. A larger border value produces a bigger triangle. You can also set different widths for each side to create non-equilateral shapes.
Is there a simpler alternative to the border triangle technique?
CSS clip-path can create triangles with more intuitive syntax. However, the border technique has broader legacy browser support and remains the most widely used approach.
Comments
Related tools
More CSS & Design
Color ConverterCSS Gradient GeneratorBox Shadow GeneratorPX to REM ConverterColor Palette GeneratorColor Contrast CheckerTailwind Color PickerCSS Animation Generator
View all CSS & Design tools
Comments