Lisse is a small JavaScript library that renders squircle (continuous curve) corners for web elements, matching the aesthetic used by Figma and iOS. It includes a framework-agnostic core plus official bindings for React, Vue, and Svelte. Features include per-corner radius control, border rendering, and shadow support. It is installed via npm and provides a playground for testing different smoothing levels.
In the Frameworks & SDKs space, lisse takes a focused approach. It focuses on implementing smooth, continuous squircle (superellipse) corner shapes on web elements beyond basic CSS border-radius. It is built as an open-source project for web developers. The project is open source (MIT). It ships for the web, the command line, and embeddable surfaces.
It is developed by Lisse (Serbia), and it first shipped in 2026. Development happens publicly on GitHub with 263 stars and 133 commits in the last 90 days. Key capabilities include squircle corners, per-corner control, and border and shadow support. The interface is available in 4 languages, including German, English, and Japanese.
Summary written by a language model from the project’s public pages.
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