buncha/code & dev/css-triangle

CSS Triangle Generator

The classic CSS triangle uses zero-size elements with thick borders — three transparent, one coloured. No SVG, no images, no JS. Pick a direction, set dimensions, copy the CSS.
Direction
Width — 100px
Height — 100px
Color
CSS
.triangle {
  width: 0;
  height: 0;
  border-left: 50px solid transparent;
  border-right: 50px solid transparent;
  border-bottom: 100px solid #dd7c35;
}
Pure CSS — runs in your browser, copy and use anywhere.

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About CSS Triangle Generator

Generate pure-CSS triangle shapes using the classic border-trick. Eight directions including four diagonal corners. Set independent width and height for non-equilateral triangles.

Everything happens on your device. Close the tab and it's gone.
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Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
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Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.