Svelte is a free, open-source user interface framework released under the MIT license that is described as "web development for the rest of us".

The main features and capabilities of Svelte include:

• Compiler-Based Framework: Uses a compiler to allow developers to write concise components that do minimal work in the browser, using standard web languages—HTML, CSS, and JavaScript.

• Comprehensive Ecosystem & Tooling: Features an integrated platform that includes Svelte, SvelteKit, a CLI, AI tooling, an interactive Playground, and learning tutorials.

• Strong Support & Community: Backed by Vercel alongside maintainers and donors, with community events and a global Discord server coordinated by Svelte Society.