Vanilla Javascript GitHub Repositories (2026) · Open Source Tools

Extension that adds word-by-word/syllable lyrics feature to YouTube Music and Apple Music (experimental), it's lightweight & good, this extension also fix apple music web lyrics

LazyLoad is a lightweight, flexible script that speeds up your website by deferring the loading of your below-the-fold images, backgrounds, videos, iframes and scripts to when they will enter the viewport. Written in plain "vanilla" JavaScript, it leverages IntersectionObserver, supports responsive images and enables native lazy loading.

Input Mask plugin

A components library built with Tailwind CSS that works with any web stack.

FPS satírico de navegador: 5 facções brasileiras caricatas, 44 personagens, 5 mapas e 26 armas — rounds e Capture the Flag contra bots, direto na aba, sem instalar nada. Three.js + vanilla JS, zero build. Gerado em par com agentes de IA (Claude, Kimi, Codex/GPT, GLM) — AI generated & AI friendly.

A lightweight JavaScript plugin that transforms your logo into a custom progress bar.

A modular WYSIWYG HTML editor with zero runtime dependencies. Everything included, enable only what you need.

Encrypted file vault that lives entirely in your browser — no server, no account. Convenient local desktop with a clinical level of paranoia.

:key: A password strength meter

Framework-agnostic JavaScript library that generates and validates forms from JSON Schema, with zero runtime dependencies.