Electron and NW.js are two established frameworks for building cross-platform desktop applications using web technologies. Both combine Chromium and Node.js, allowing developers to create applications with HTML, CSS, JavaScript, and familiar frontend frameworks such as React, Vue, and Angular.
NW.js is actually the older framework. Originally known as node-webkit, the project began in 2011 and was publicly available by 2012. Electron followed in 2013, initially developed by GitHub for its Atom code editor. Despite arriving later, Electron eventually became the more widely adopted framework for mainstream desktop applications.
Today, Electron powers major applications such as Visual Studio Code, Slack, Discord, Notion, and Figma. It also benefits from participation by major technology companies and governance through the OpenJS Foundation. At WebCatalog, we've chosen Electron to power our cross-platform desktop applications.
NW.js, meanwhile, has a much smaller visible presence among major productivity and business applications. Its continued adoption is particularly apparent in the gaming industry, including indie games and titles built using RPG Maker.
So how do the two frameworks compare, and which should developers choose?
Electron vs. NW.js at a Glance
Both frameworks allow developers to build desktop applications using web technologies, but they approach application architecture, native integration, and security differently.
| Feature | Electron | NW.js |
|---|---|---|
| First introduced | 2013 | 2011–2012 |
| Original developer | GitHub | Intel Open Source Technology Center |
| Governance and ecosystem | OpenJS Foundation, with major corporate contributors | Community-maintained, with Intel origins |
| Browser engine | Chromium | Chromium |
| JavaScript runtime | Node.js | Node.js |
| Desktop platforms | macOS, Windows, Linux | macOS, Windows, Linux |
| Architecture | Main and renderer processes | Chromium architecture with direct Node.js integration |
| Node.js access | Main process and controlled renderer integration | Direct access from eligible application pages |
| Application size | Relatively large | Relatively large |
| Performance | Depends on application | Depends on application |
| Security | Sandboxing, context isolation, IPC | Configurable Node access and frame isolation |
| Adoption | Widely used in mainstream desktop applications | Smaller ecosystem, notable gaming adoption |
| Mobile support | No official support | No official support |
The most important distinctions are not performance or application size. Both frameworks bundle Chromium and Node.js, so their resource requirements are broadly comparable. Instead, the major differences concern architecture, security boundaries, developer tooling, and ecosystem support.
History: NW.js Came First, but Electron Became More Popular
NW.js was one of the earliest projects to demonstrate that developers could combine Node.js with browser technologies to create desktop applications. Originally called node-webkit, it emerged from Intel's Open Source Technology Center, with development beginning in 2011 and public releases appearing by 2012.
Its central idea was straightforward: allow JavaScript running in a browser-like environment to access Node.js modules directly. This made it possible to develop desktop applications using familiar web technologies without building a traditional native interface.
Electron arrived in 2013 under the name Atom Shell. GitHub developed it to power Atom, its code editor, which entered public beta in 2014. Electron was designed as an alternative to the web-based desktop frameworks available at the time, including node-webkit and Chromium Embedded Framework.
Although both frameworks shared the goal of making desktop development accessible to web developers, Electron adopted a different architecture that separated application-level functionality from web content. This approach became increasingly attractive as developers began building more complex applications.
Electron subsequently gained adoption among startups and major technology companies. GitHub, Slack, Microsoft, and other organizations contributed to its development and ecosystem. In 2019, Electron joined the OpenJS Foundation, moving from GitHub ownership to a neutral open-source foundation.
Today, Electron operates under an established governance model with working groups covering security, releases, APIs, Chromium and Node.js upgrades, and other areas. Engineers associated with organizations such as Microsoft and Slack have participated in its maintenance and governance.
NW.js also has corporate origins, having been created at Intel. However, its current ecosystem is smaller and does not have the same breadth of visible participation from major desktop software companies.
This history illustrates an important distinction: being first does not guarantee long-term dominance. NW.js helped establish the concept of building desktop applications with Chromium and Node.js, but Electron attracted a broader ecosystem of developers, maintainers, and commercial adopters.
For more background, see Electron's 10-year retrospective, Electron joining the OpenJS Foundation, and the history of the node-webkit project.
Architecture: Main Processes vs. Direct Node.js Integration
Electron uses a multi-process architecture inherited from Chromium. Each Electron application has a main process responsible for managing windows, application lifecycle events, operating-system integrations, and privileged functionality. Web content runs in separate renderer processes, which communicate with the main process through inter-process communication (IPC).
This creates a distinction between application logic and user interface code. A renderer process typically behaves like a conventional browser environment, while the main process handles operations that require access to Node.js or native APIs. Electron also provides preload scripts and the contextBridge API, allowing developers to expose selected functionality to the renderer without granting unrestricted access to Node.js.
NW.js takes a different approach. It was designed to make Node.js functionality available directly within web applications. In an eligible application page, developers can access Node.js modules using familiar JavaScript APIs without establishing a separate IPC interface for every operation.
For example, a locally packaged NW.js application can use Node.js directly from a script running in its page:
const fs = require('node:fs');
const content = fs.readFileSync('notes.txt', 'utf8');
document.body.textContent = content;
This simplicity is one of NW.js's defining advantages. Developers can combine browser APIs and Node.js functionality without necessarily separating their code into distinct application layers. NW.js also supports separate JavaScript contexts and a mixed-context mode, providing flexibility in how browser and Node.js functionality interact.
Electron generally encourages a more explicit separation. To read a file from the renderer, a typical secure Electron application would expose a limited operation through a preload script and handle the filesystem access in the main process.
That approach requires additional code, but it makes the boundary between privileged application functionality and web content more explicit. For complex applications, this separation can improve maintainability and make security responsibilities easier to understand.
Neither architecture is universally better. NW.js may feel more straightforward for smaller applications or projects that benefit from direct Node.js integration. Electron provides a structure that can be especially useful as an application grows in complexity.
Performance, Memory Usage, and Application Size
Because both Electron and NW.js bundle Chromium and Node.js, neither framework has an inherent architectural advantage comparable to the size difference between Electron and Tauri.
Even a simple application built with either framework needs to distribute a substantial runtime. Both frameworks can also create multiple Chromium processes, which increases memory consumption but helps isolate workloads and improve responsiveness.
NW.js's direct integration between Node.js and the browser environment can reduce the need for IPC in certain operations. Depending on the context configuration, JavaScript code can interact with Node.js functionality directly, making some operations simpler and potentially reducing communication overhead.
Electron separates privileged operations from renderer code, which introduces IPC when crossing process boundaries. However, this does not mean that Electron is inherently slower. The additional overhead may be negligible for ordinary user-interface interactions, and the separation can help keep expensive backend work away from the renderer.
In practice, application performance depends heavily on how developers use Chromium, manage background processes, implement rendering, and handle application state.
For meaningful comparisons, developers should evaluate:
- Startup time: How quickly the application becomes interactive.
- Memory usage: Both idle consumption and memory usage under realistic workloads.
- CPU usage: Resource consumption during rendering and background operations.
- Application size: Download size and storage requirements after installation.
- Responsiveness: How well the interface behaves during resource-intensive tasks.
Neither framework should be considered categorically faster without measuring a representative application. Differences in Chromium versions, build configurations, native modules, and application architecture can all affect benchmark results.
For developers looking primarily to reduce application size, switching from Electron to NW.js is unlikely to deliver the dramatic savings associated with moving to a system-webview framework.
Security: Different Approaches to Native Access
Security is one of the most important differences between Electron and NW.js, particularly for applications that display remote websites or other untrusted content.
Electron provides several security mechanisms, including Chromium sandboxing, context isolation, and the ability to disable Node.js integration in renderer processes. Modern Electron versions enable important protections by default, and the project's security documentation strongly recommends keeping privileged native APIs separate from remote content.
NW.js allows more direct access to Node.js from eligible application pages, which can simplify development but also requires careful consideration of which content receives those privileges.
NW.js distinguishes between normal frames and Node-enabled frames. It also supports settings such as node-remote to control which remote URLs can access Node.js functionality. Its webview component can display guest content in a separate process without automatically granting it the application's privileges.
| Security consideration | Electron | NW.js |
|---|---|---|
| Privileged Node.js access | Primarily main process and controlled bridges | Available directly in eligible app contexts |
| Remote content isolation | Sandboxed renderers and web contents | Normal frames and isolated webviews |
| Native API exposure | IPC and contextBridge | Node contexts and configurable access |
| Chromium sandboxing | Supported with secure defaults | Depends on frame type and configuration |
| Developer responsibility | Validate IPC, navigation, permissions, and exposed APIs | Control privileged frames, Node access, and remote content |
Neither Electron nor NW.js should automatically be treated as a secure general-purpose browser. Applications that display arbitrary third-party websites require additional security controls, regardless of the framework.
For applications developed entirely around trusted local content, NW.js's direct integration may be convenient. For applications that need strong separation between privileged code and untrusted web content, Electron's architecture can make those boundaries more explicit.
Ultimately, security depends on application design, configuration, dependency management, and the speed at which developers apply security updates.
Adoption: Electron Dominates Mainstream Desktop Applications
One of the most significant differences between Electron and NW.js is their adoption among desktop software developers.
Despite being the younger project, Electron has established itself as a mainstream framework for production desktop applications. Its adoption spans development tools, communication platforms, productivity software, design applications, and business utilities.
Some well-known examples include:
| Company | Electron application |
|---|---|
| Microsoft | Visual Studio Code |
| Salesforce | Slack |
| Discord | Discord |
| Notion | Notion |
| Figma | Figma |
| GitHub | GitHub Desktop |
| Signal | Signal Desktop |
| Postman | Postman |
These products demonstrate that Electron can support sophisticated desktop applications used by millions of people. Its adoption has also contributed to an extensive ecosystem of libraries, documentation, debugging tools, and packaging solutions.
Corporate participation is another advantage. Electron was originally developed by GitHub and later attracted contributions from engineers at major technology companies. Its governance through the OpenJS Foundation provides an organizational structure for collaboration, security maintenance, release management, and long-term development.
This does not mean every company using Electron contributes directly to the framework, nor does it guarantee that Electron will always be better maintained. However, a widely used framework with a diverse group of commercial stakeholders can benefit from shared engineering investment and real-world production experience.
NW.js has a different adoption profile. While it has been used to build desktop applications, relatively few prominent modern productivity or business applications publicly identify NW.js as their framework. Many applications traditionally mentioned in NW.js showcases are older projects, making those lists less useful for evaluating its current adoption.
This does not mean NW.js is abandoned or unused. It continues to receive releases incorporating updated Chromium and Node.js versions. However, its visible ecosystem is considerably smaller than Electron's in mainstream desktop software.
For developers choosing a framework for a new commercial application, this distinction matters. A larger ecosystem generally makes it easier to find existing solutions, recruit developers with relevant experience, and resolve production problems.
Electron's popularity does not make it technically superior in every respect, but its broader adoption and corporate participation are practical advantages that should not be overlooked.
You can explore more examples in the official Electron application showcase.
Where NW.js Is Still Popular: Indie Games
Although NW.js is not widely represented among major modern productivity applications, it continues to have a notable presence in game development, particularly among independent developers.
One reason is its integration with game development tools such as RPG Maker MV. Games created with RPG Maker MV can use NW.js as their desktop runtime, allowing HTML5 and JavaScript-based games to run as standalone applications.
This means developers may use NW.js indirectly through their game engine rather than selecting it as a general-purpose desktop framework.
There is also independent evidence that NW.js continues to appear in newly released games. SteamDB tracks games using NW.js by automatically examining technology signatures in their distributed files. Its database includes games released in 2025 and 2026, providing evidence of continued usage rather than relying entirely on potentially outdated application showcases.
Examples associated with NW.js include:
| Game | Genre | Steam release |
|---|---|---|
| Look Outside | Horror RPG | March 2025 |
| OMORI | RPG | December 2020 |
| CrossCode | Action RPG | September 2018 |
| Fear & Hunger | Horror RPG | December 2018 |
| Ib | Horror adventure | April 2022 |
| Saihate Station | Adventure | March 2025 |
| Sheepy: A Short Adventure | Platformer | February 2024 |
Source: SteamDB's NW.js technology detection.
SteamDB identifies technologies automatically from game files, so individual detections may contain errors or represent an included dependency rather than a runtime deliberately selected by the developer. The presence of NW.js also does not establish which framework version a game uses or whether its developer actively maintains it.
Nevertheless, these examples demonstrate that NW.js remains part of the modern game development ecosystem.
This creates an interesting distinction between the two frameworks. Electron is highly visible in mainstream desktop applications, particularly productivity and development tools. NW.js has a smaller presence in those categories but continues to appear in independently developed games.
For developers building business software, communication tools, or complex productivity applications, Electron's ecosystem may be more relevant. For developers working with RPG Maker or maintaining games built around NW.js, the older framework remains an established and practical choice.
Development Experience, Tooling, and Long-Term Maintenance
Both frameworks support modern frontend technologies and Node.js packages, making them accessible to developers familiar with web development. However, Electron has a considerably larger ecosystem focused on general-purpose desktop software.
NW.js offers a relatively straightforward development model. A simple application can be defined using a package.json manifest and an HTML entry point. Developers can access Node.js modules directly from eligible application pages and use NW.js APIs for managing windows, menus, system trays, and other desktop functionality.
Electron typically requires more initial structure. Developers create a main-process entry point, configure application windows, and manage communication between the main and renderer processes. This can feel more complicated for small applications, but it also encourages developers to organize application functionality into distinct layers.
Electron benefits from established tools such as Electron Forge and electron-builder, which provide solutions for packaging, signing, distributing, and updating applications. Its extensive adoption also means developers can find more examples and community discussions about advanced desktop development problems.
NW.js provides packaging tools such as nw-builder and supports manual packaging. It also exposes APIs derived from Chromium's application and extension architecture, which can be attractive for projects that already use those APIs.
Both frameworks require developers to handle operating-system differences, code signing, native module compatibility, and application updates. Neither eliminates the complexity of distributing production desktop software.
The size and composition of the ecosystem become particularly important for long-term maintenance. Teams building commercial applications may need solutions for code signing, auto-updates, crash reporting, accessibility, native integrations, and platform-specific bugs.
Electron's wider adoption among major software companies makes it easier to find established practices and reusable solutions for many of these requirements. NW.js remains capable, but developers may encounter fewer examples or maintained integrations for specialized desktop functionality.
For a project expected to be maintained for many years, ecosystem maturity and ongoing investment deserve as much consideration as framework APIs or benchmark results.
Why We Choose Electron at WebCatalog
At WebCatalog, we've chosen Electron because its architecture aligns closely with the requirements of our products. WebCatalog allows users to turn websites into desktop applications, manage multiple accounts independently, and organize their applications across macOS, Windows, and Linux.
Unlike developers building a conventional desktop application with a frontend they fully control, we need to support websites created by thousands of different developers. These websites may rely on different authentication systems, storage mechanisms, browser APIs, media features, and complex JavaScript applications.
Both Electron and NW.js use Chromium, so they offer similar advantages in browser engine compatibility. The distinction for us is how much control the framework provides over application windows, browser sessions, navigation, permissions, and the separation between privileged application code and remote content.
Electron provides a mature set of APIs for these requirements. Its BrowserWindow, webContents, and session interfaces allow us to manage browser behavior at a relatively low level. Persistent session partitions are especially important because they let users keep multiple accounts signed in to the same website without sharing their cookies and other session data.
NW.js also supports embedded webviews, cookie management, and storage partitions, so these capabilities are not exclusive to Electron. However, Electron's dedicated application process and well-established browser-management APIs provide an architecture that works well for our needs.
Security is another important consideration. Because WebCatalog displays third-party websites that we do not control, we need to carefully separate remote content from privileged application functionality. Electron's process model, context isolation, and IPC mechanisms help us maintain that separation, although we still need to implement and maintain appropriate security controls ourselves.
Finally, Electron's ecosystem makes cross-platform development and maintenance more practical. Our applications need to run on macOS, Windows, and Linux, with support for platform-specific features, packaging, signing, and updates. Electron's tooling, documentation, and extensive real-world adoption provide a strong foundation for this work.
We also value Electron's long-term development ecosystem. The participation of major technology companies and its governance through the OpenJS Foundation give us greater confidence in the availability of technical resources, security maintenance, and community support as our products evolve.
We recognize Electron's disadvantages, particularly its application size and resource requirements. Rather than replacing the framework, we continue exploring ways to reduce unnecessary overhead. For example, we've implemented APFS clones to reduce disk usage for generated Mac applications.
Our decision is not based on the belief that NW.js is incapable of supporting sophisticated software. Both frameworks offer the Chromium consistency we value. For WebCatalog, Electron's architecture, security controls, broader mainstream adoption, and established engineering ecosystem make it the better fit.
Where NW.js Still Makes Sense
Although Electron has a larger ecosystem, NW.js retains some meaningful advantages that developers should consider.
Its most distinctive feature is the ability to access Node.js directly from eligible browser contexts. For developers converting an existing web application into a desktop application, this can provide a convenient way to introduce filesystem access, operating-system integrations, and other native functionality without designing a separate communication layer.
NW.js may be a good choice when:
- Building games with an existing NW.js-based toolchain. Developers using RPG Maker MV or maintaining projects that depend on NW.js may have little reason to switch frameworks.
- Direct Node.js integration is desirable. The application can benefit from accessing Node.js functionality directly within its trusted interface.
- The application is relatively simple. A smaller project may not need Electron's more explicit separation between main and renderer logic.
- The project already uses NW.js. Migrating to Electron may provide little benefit if the existing application is stable and well maintained.
- Specific Chromium application APIs are important. NW.js provides access to supported Chrome APIs that may be useful for particular applications.
NW.js also remains actively maintained. Its ongoing Chromium updates demonstrate that it continues to evolve alongside the browser platform.
For developers maintaining an existing NW.js application or game, switching to Electron would require evaluating architectural differences, packaging changes, and compatibility requirements. Unless there is a clear technical or business benefit, maintaining the existing framework may be more practical.
Electron vs. NW.js: Which Should You Choose?
Both frameworks are capable of building cross-platform desktop applications. For new projects, the choice largely depends on how developers want to structure their code and which ecosystem best supports their requirements.
| Your priority | Better starting point | Why |
|---|---|---|
| Large, complex desktop applications | Electron | Established architecture and ecosystem |
| Mainstream productivity or business software | Electron | Much broader adoption in these categories |
| Long-term ecosystem and corporate participation | Electron | OpenJS Foundation and major industry contributors |
| Games built using RPG Maker MV | NW.js | Established integration and toolchain |
| Direct Node.js access from application pages | NW.js | Core architectural feature |
| Explicit separation between UI and privileged code | Electron | Main/renderer model and IPC |
| Extensive packaging and distribution tooling | Electron | Mature tooling ecosystem |
| Existing NW.js application | NW.js | Avoid unnecessary migration |
| Chromium consistency across desktop platforms | Either | Both bundle Chromium |
| Minimal application size | Neither has a clear advantage | Both bundle Chromium and Node.js |
| Browser session and window management | Electron | Mature, dedicated APIs |
| Broad community resources and examples | Electron | Greater mainstream adoption |
For most teams starting a substantial new desktop application, Electron is the stronger default choice. Its architecture, ecosystem, security guidance, corporate participation, and extensive production adoption make it a practical framework for long-term development.
NW.js remains worth considering for projects that benefit from direct Node.js integration, game development workflows that already depend on it, or established NW.js codebases. It can be simpler for certain use cases, and its Chromium foundation provides broad web platform compatibility.
Developers should also remember that neither framework is particularly lightweight. If small application size and low baseline resource consumption are the primary concerns, alternatives such as Tauri may deserve consideration.
Final Thoughts
Electron and NW.js share more similarities than differences. Both combine Chromium and Node.js to let developers build cross-platform desktop applications using familiar web technologies. Both support modern JavaScript frameworks, native operating-system integration, and sophisticated desktop experiences.
NW.js came first, introducing its approach to combining Node.js with web technologies before Electron existed. However, Electron subsequently became the more widely adopted framework for mainstream desktop applications, benefiting from GitHub's original investment, contributions from major technology companies, and governance through the OpenJS Foundation.
Their adoption patterns are noticeably different. Electron powers popular productivity, communication, and development applications used by millions of people. NW.js is less visible in that market, but continues to have a meaningful presence in indie gaming, including RPG Maker-based titles and recently released games.
At WebCatalog, we make the same framework choice as many major desktop software developers. Electron gives us the Chromium consistency, browser-management capabilities, security architecture, and cross-platform tooling needed to support a large variety of web applications across macOS, Windows, and Linux.
NW.js is not obsolete, and its continued use in game development demonstrates that it remains useful. But for developers starting a new general-purpose desktop application, Electron's broader ecosystem, established tooling, corporate participation, and larger community make it the more practical default.
Ultimately, the better choice depends on the requirements of the application, the experience of the development team, and the long-term cost of maintaining the software.
