Jotsy is a self-hosted, free and open-source note taking app with a goal of simplicity in mind

A React Rich Text Editor that's block-based (Notion style) and extensible. Built on top of Prosemirror and Tiptap.

Generate massive amounts of fake data in the browser and node.js

A habit tracker app which treats your goals like a Role Playing Game.

Interactive, thoroughly customizable maps in the browser, powered by vector tiles and WebGL

OpenLayers

The lightweight library for manipulating and animating SVG

An open-source JavaScript library for world-class 3D globes and maps 🌎

Simple React Bootstrap 5 components

🍞📅A JavaScript calendar that has everything you need.

DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:

Highcharts JS, the JavaScript charting framework

𝙃𝙪𝙜𝙚 collection of Tailwind MIT licensed (free) components, sections and templates 😎

Client/server side PDF printing in pure JavaScript

The world's #1 JavaScript library for rich text editing. Available for React, Vue and Angular

Simple responsive charts

Luckysheet upgraded to Univer

🤖 GPU accelerated Neural networks in JavaScript for Browsers and Node.js

a 2D rigid body physics engine for the web ▲● ■

Simple, responsive, modern SVG Charts with zero dependencies

Open-source JavaScript charting library behind Plotly and Dash

Full-sized drag & drop event calendar in JavaScript

A WebGL accelerated JavaScript library for training and deploying ML models.

A draggable and resizable grid layout with responsive breakpoints, for React.

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

The Open Source kanban, built with Meteor. New English strings for new features at imports/i18n/data/en.i18n.json . Non-English translations at https://app.transifex.com/wekan/wekan only.

Data Apps & Dashboards for Python. No JavaScript Required.

A modern load testing tool, using Go and JavaScript

🤖 Headless UI for building powerful tables & datagrids for TS/JS - React-Table, Vue-Table, Solid-Table, Svelte-Table

Find and fix problems in your JavaScript code.