Electron (software framework)

Electron (software framework)
Name	Electron
Developer	GitHub
Released	15 July 2013
Programming language	C++, JavaScript, Python
Operating system	Microsoft Windows, macOS, Linux
Genre	Software framework
License	MIT License

Electron (software framework). Electron is an open-source software framework developed by GitHub that enables the creation of cross-platform desktop applications using web technologies such as HTML, CSS, and JavaScript. It combines the Chromium rendering engine and the Node.js runtime into a single runtime environment, allowing developers to build applications for Microsoft Windows, macOS, and Linux with a single codebase. Originally created for the text editor Atom (text editor), it has since been adopted by many major companies for building popular desktop applications.

Overview

Electron allows developers to use familiar web development technologies to create native-feeling desktop applications, effectively bridging the gap between web applications and traditional desktop applications. The framework packages a Chromium-based browser window with a full Node.js backend, granting the application access to both the Document Object Model and low-level system APIs. This model has been instrumental in enabling companies like Microsoft, Slack Technologies, and Discord to deploy their software across multiple operating systems efficiently. The use of a single JavaScript codebase for all platforms significantly reduces development and maintenance costs compared to maintaining separate native codebases for Windows API, Cocoa (API), and GTK.

Architecture

The architecture of Electron is centered on two primary processes: the main process and the renderer process. The main process runs the application's entry script, creates BrowserWindow instances, and manages application lifecycles using the Electron API. Each BrowserWindow runs a separate renderer process, which is essentially an isolated instance of Chromium that displays the application's HTML and CSS and executes its JavaScript for the user interface. Communication between these processes is handled via Inter-process communication channels such as [`ipcMain` and `ipcRenderer`](https://www.electronjs.org/docs/latest/api/ipc-main). This multi-process model is derived from Chromium's architecture and helps isolate failures, though it can lead to higher RAM usage.

Development and history

Electron was originally developed in 2013 by GitHub engineer Cheng Zhao as the underlying framework for the company's customizable text editor, Atom (text editor). It was initially known as Atom Shell before being open-sourced in 2014 and renamed Electron. The framework gained rapid adoption following its use in high-profile applications like Microsoft's Visual Studio Code and the communication platform Slack. Key milestones in its development have included the integration of newer versions of Chromium and Node.js, the introduction of the [`electron-forge`](https://www.electronforge.io/) tooling ecosystem, and the formation of an independent governance model under the OpenJS Foundation in 2019. The project is maintained by a core team and a large community of contributors on GitHub.

Applications

Electron has been used to build a wide array of prominent desktop applications across various industries. Notable examples include the code editor Visual Studio Code by Microsoft, the team collaboration tools Slack and Discord, the messaging application WhatsApp Desktop, and the music streaming service Spotify's desktop client. Other significant applications built with the framework include the GitHub Desktop client, the Tidal music service, and the Figma collaborative design tool. The ability to leverage existing web development teams and code has made it a popular choice for companies seeking to expand from the World Wide Web to the desktop.

Reception and criticism

Electron has received a mixed reception within the software development community. It is widely praised for dramatically lowering the barrier to entry for cross-platform desktop development, enabling rapid prototyping and deployment, as evidenced by its adoption by major firms like Microsoft and Salesforce. However, it has faced significant criticism for the large size of generated applications and their high consumption of system resources, particularly RAM and storage, when compared to native applications built with C++ or Swift (programming language). Critics often cite the "bloat" of bundling a full Chromium instance, leading to comparisons with the resource usage of the Google Chrome browser itself.

Security considerations

Security is a critical area of focus and concern for Electron applications due to their integration of powerful Node.js APIs with web content. The framework's documentation strongly advises developers to follow security best practices, such as enabling Context Isolation, disabling the [`nodeIntegration`](https://www.electronjs.org/docs/latest/tutorial/security#2-do-not-enable-nodejs-integration-for-remote-content) flag for remote content, and implementing Content Security Policy headers. High-profile security vulnerabilities, including those potentially allowing Remote Code Execution, have been identified in various Electron-based applications, prompting ongoing scrutiny from security researchers. The Electron Security Checklist published by the maintainers is a key resource for developers aiming to harden their applications against common threats.

Category:Free software programmed in C++ Category:Free software programmed in JavaScript Category:Software using the MIT license Category:Cross-platform software Category:Software frameworks