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A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

JavaScript syntax highlighter with language auto-detection and zero dependencies.

:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!

From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents

String validation

Low-code programming for event-driven applications

A simple, lightweight JavaScript API for handling cookies, client-side.

Ember.js - A JavaScript framework for creating ambitious web applications

⚙️ Node.js tool for optimizing SVG files

:ok_hand: Drag and drop so simple it hurts

Web Extension for saving a faithful copy of a complete web page in a single HTML file

The Open Source kanban, built with Meteor. GitHub issues/PRs are only for FLOSS Developers, not for support, support is at https://wekan.fi/commercial-support/ . New English strings for new features at imports/i18n/data/en.i18n.json . Non-English translations at https://app.transifex.com/wekan/wekan only.

Node.js test runner that lets you develop with confidence 🚀

Interactive Data Visualization in the browser, from Python

A query builder for PostgreSQL, MySQL, CockroachDB, SQL Server, SQLite3 and Oracle, designed to be flexible, portable, and fun to use.

A rich text editor for everyday writing

A simpler site generator. Transforms a directory of templates (of varying types) into HTML.

🐐 Simple and complete React DOM testing utilities that encourage good testing practices.

Share your terminal as a web application

An open-source screen recorder built with web technology

1kB-ish JavaScript framework for building hypertext applications

Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.

Daemon for easy but powerful stats aggregation

Open-source alternative to AI video platforms — Free AI image & video generation studio with 200+ models (Flux, Midjourney, Kling, Sora, Veo). No content filters. Self-hosted, MIT licensed.

Modular and customizable Material Design UI components for the web

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:

Pragmatic, balanced FP in JavaScript. @FLJSBook on twitter.

Luckysheet upgraded to Univer

State-of-the-art Machine Learning for the web. Run 🤗 Transformers directly in your browser, with no need for a server!