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Develop desktop apps from websites, using system installed browsers and NodeJS.

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System installed browsers

Gluon uses normal already installed browsers, instead of bundling a browser or relying on webview libraries.

Chromium and Firefox support

Unlike others, Gluon supports Chromium and Firefox, allowing user and developer choice.

Rapid prototyping

Gluon has simple yet powerful APIs, with batteries-included to avoid boilerplate.

Actively developed

Gluon is young and quickly evolving, actively listening to feedback.

Deno support

Gluon also supports using Deno (or Bun) in place of Node for more options.

Cross-platform, Cross-browser, Cross-runtime

Gluon supports Windows, Linux, and Mac, with most Chromium-based and Firefox-based browsers supported. You can also use Node, Deno, or Bun as the JS Runtime powering your app (experimental).



Gluon is not only versatile, but also one of the fastest frameworks out there. By looking into browser internals and using a curated set of flags, Gluon tries to squeeze out the most performance possible whilst also aiming to use less memory and resources.

Startup Time

Time until FCP. Gluon using Chromium. All frameworks in release config, on Windows 10.

Tiny Builds

Gluon has tiny builds thanks to a custom bootstrapper written in Nim, allowing dependencies (like Node) to only be downloaded on the fly when not already installed.

Build Size Windows x64

Open Window API

Opening a Window in Gluon is as simple as one function call, with more options available if you need them like window size or loading extra code.

import * as Gluon from '@gluon-framework/gluon';

const Window = await'');


IPC (Inter-Process Communication) allows you to communicate between your Node backend and website frontend.

Gluon has an easy but powerful asynchronous IPC API, which is also near-identical in Node and the exposed Gluon web API to allow even easier and quicker development.

It also has multiple versatile sub-APIs for doing common things, wrapping the base API so most developers won’t need to use a needlessly complex event-based system:


Easily expose Node functions to Web.


Share common data effortlessly between Node and Web both ways.

Learn more about Gluon’s IPC here.

import * as Gluon from '@gluon-framework/gluon';
const Window = await''); = {
  env: 'production'

import { writeFile } from 'fs/promises';

let log = '';
Window.ipc.log = msg => { // Log data to a log file on disk
  log += msg;
  writeFile('app.log', log); // Write to log file
// Get data from IPC Store
const { env } =;
env // 'production'

// Call exposed IPC function
Gluon.ipc.log('Stored to log file!');

Idle API Experimental

The Idle API is a unique feature to Gluon, allowing you to “hibernate” or “sleep” Gluon windows to save system resources.

Hibernation fully kills the browser internally (using ~30MB of memory), whilst sleep uses a screenshot of the page as a placeholder (using ~60MB of memory).

You can either hibernate, sleep, and wake up manually with the API, or use automatic idle management which will hibernate the window when minimized for a chosen period of time, and wake it up when it’s focused again for you.

import * as Gluon from '@gluon-framework/gluon';
const Window = await'');

const wait = ms => new Promise(resolve => setTimeout(resolve, ms));
await wait(5000); // Wait for everything to fully load

Window.idle.hibernate(); // Hibernate the window
await wait(5000);

Window.idle.wake(); // Wake up the window
await wait(5000);

Window.idle.sleep(); // Put the window to sleep
await wait(5000);

Window.idle.wake(); // Wake it up again

Also featuring…

Browser Extensions

Gluon also features best-in-class browser extension support:

Extension Feature Gluon Electron Tauri
Extension Support
Basic browser extension support
🟢 🟢 🔴
DevTools Extensions
DevTools extensions like React DevTools work
🟢 🟢 🔴
Manifest V2
Support for Manifest V2
🟢 🟢 🔴
Manifest V3
Support for Manifest V3 (new format/APIs)
🟢 🔴 🔴
WebExtension APIs Support
Broad support for various WebExtension APIs
🟢 🟡 🔴
🟢 Supported 🟡 Partial 🔴 Unsupported


Security in Mind

Gluon has strict security, by default, without developer annoyance:

Extension Feature Gluon Electron Tauri
Process Isolation
Isolate and sandbox processes for enhanced security
🟢 🟢 🟢
No localhost Server
Do not use a localhost server which could be exposed
🟢 🟢 🟢
Content Security Policy
Use a CSP to stop unwanted external content
🟢 🟡 🟡
Limited Navigations
Prevent navigation to untrusted origins
🟢 🟡 🔴
Only accept HTTPS URLs and content
🟢 🔴 🔴
🟢 Default 🟡 Opt-in 🔴 Unimplemented

Screenshot of a Gluon Hello World app showing versions with 2 windows, one using Chrome Canary and another using Firefox Nightly.