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favipulse

Favicons that say something: who, where, and what's happening.

favipulse is a tiny (2.9 KB min+gzip), zero-dependency, typed ESM + CJS favicon library by Louis Wright:

• Generative icons: a deterministic identicon from any seed, with an optional self-drawing animation.
• Badges, progress rings and pulse: unread counts, build/upload progress, "needs attention".
• Per-environment icons: dev, staging and prod each get their own icon from the same seed.
• Static sets: a CLI (and Vite / Next.js helpers) that write favicon.svg, favicon.ico, PNG sizes and a manifest per environment.

It's the maintained replacement for favico.js (last release 2015) and tinycon (last release 2017).

Live demo · README · npm

Pages

• Getting Started
• API
• Environments
• Progress & Badges
• Migrating from favico.js and tinycon
• FAQ