Free Web-based Development Apps

Free, extensible code editor with Git integration, AI-driven IntelliCode, and 30,000+ extensions, supporting various languages like Python, Java.

Web-based Git hosting service facilitating collaboration, with features like issue tracking, social networking, and wikis for project management.

Privacy-focused diagramming software supporting real-time collaboration, offline mode, and cloud storage without ads or registration.

Open-source software for creating websites and blogs with an emphasis on accessibility, ease of use, performance, and security.

Offers on-premise or hosted Git repository management, including issue tracking, wikis, code reviews, and continuous integration and deployment.

Microsoft Visual Studio is an IDE used to create programs, apps, websites, and web services using various frameworks. It supports multiple languages and offers tools for coding, debugging, and design.

A free Git source code hosting service with the objective to give the open-source code that is running our world a safe and friendly home, and to ensure that code remains free and secure forever.

JavaScript (sometimes shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but also used in many non-browser environments.

Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible.

Gitea is a fork of Gogs, lightweight code hosting solution written in Go and published under the MIT license.

The world's most popular modern publishing platform for creating a new media platform.

Stack Overflow, part of Stack Exchange, is a free, community-driven, reputation-based Q & A site for computer programmers. No membership is required to ask questions or provide answers to questions by others.

Open source community and software directory offering code hosting, analytics, version control, project management, and access to over 50,000 business titles.

Free Code Camp's open source community help you build a job-worthy portfolio of real apps used by real people, while helping nonprofits.

This is an F-Droid style repository for Android apps, provided by IzzyOnDroid. Applications in this repository are official binaries built by the original application developers, taken from their...

yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams...

Offers Git-based code hosting, integrated issue tracking, a project wiki, pull requests, and collaboration tools with support for private or public repositories.

A scalable tool for real-time and asynchronous team collaboration across devices with an infinite canvas, suitable for strategy planning and real-time feedback.

Build a customizable link-in-bio page with grid layout, rich widgets, contact forms, service listings, SEO optimization, and custom domain options.

Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly. Supports PHP, Node, Multiple servers, and more.

Create your own free website, and connect with others you by following their sites. You get 1 GB of space to make whatever you’d like with HTML, CSS, JS, image, text, and web font files.

A widely used platform for storing and sharing text online, popular among programmers for source code and configuration sharing with ease.

phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Currently it can create and drop databases, create/drop/alter tables, delete/edit/add fields, execute any SQL statement, manage keys on fields.

Begin interactive coding for free with courses in multiple languages, offering a fun learning experience enhanced by community support and optional pro features.

Gist is a simple way to share snippets and pastes with others. All gists are git repositories, so they are automatically versioned, forkable and usable as a git repository.