In 2023, Discord revealed that its desktop app consumed 600MB of RAM while idle. The tech community reacted swiftly. Now, years later, the conversation has shifted with the arrival of Tauri. This technology is revolutionizing the creation of desktop applications using a web stack. The result? A comparable app built with Tauri only takes up 180MB. It's not magic, folks; it's an architecture designed from the operating system up, not from the browser.
Photo: Dulcey Lima on Unsplash
The issue with Electron doesn't lie in its core but in the fact that it packages a full Chromium instance in every app. Tauri, on the other hand, takes the opposite approach: it leverages the native webview of the operating system (WebKit on macOS, WebView2 on Windows, WebKitGTK on Linux) and a robust backend written in Rust. The result is efficiency and a pivotal change in how we distribute modern applications.
Why Electron Dominates (and Why That's Changing)
Electron was created by GitHub in 2013, originally known as Atom Shell. The promise was enticing: write once in JavaScript, HTML, and CSS, and deploy everywhere. Many apps adopted this stack, benefiting from the developer experience that allowed any frontend team to build desktop apps without needing to learn Swift, C#, or GTK.
However, this convenience comes at a cost. Each Electron app includes:
- Full Node.js (~50MB)
- Chromium engine (~120MB)
- Your code and dependencies (~30-200MB)
Multiply this by the number of Electron apps you likely have open. How many full browsers are running on your laptop? In the future, with M4 chips and 32GB of RAM, it might be sustainable. However, the architecture remains inherently inefficient.
Tauri, on the other hand, was publicly introduced in 2020, with its stable 1.0 release in 2022. Now, in 2026, it has gained real traction, being used in over 2,800 projects, including internal tools at Netflix and cryptocurrency clients.
The Architecture That Changes Everything: Rust + Native Webviews
Photo: Yogi Permana on Unsplash
The key difference lies in its design. Where Electron packages everything, Tauri delegates:
Backend in Rust: All critical logic is implemented in Rust, offering memory safety by design, native performance, and highly optimized binaries.
Frontend in Any Web Framework: The interface remains HTML/CSS/JS but is rendered in the operating system's webview, significantly reducing resource usage.
Communication via IPC: The frontend interacts with the Rust backend through an asynchronous messaging system. This design isn't just aesthetic; it allows for executing complex operations without affecting the UI.
The Rust backend can perform blocking operations without freezing the interface. Additionally, it has access to native OS APIs, something the browser sandbox restricts. And Rust's security stack prevents known Electron vulnerabilities.
Where Tauri Saves You $40K in Infrastructure
A real-world example: Aptakube, a visual Kubernetes client, migrated from Electron to Tauri in 2024. The transformation was remarkable:
- Installer Size: from 180MB to 8.5MB
- Idle Memory Usage: from 420MB to 95MB
- Idle CPU Consumption: reduced by 73%
- Startup Time: from 3.2s to 0.8s
The financial savings were significant. Aptakube distributes its app with automatic updates. With Electron, each release meant massive bandwidth usage, costing thousands annually. With Tauri, the expense was drastically reduced, saving the pre-seed startup nearly $8,400 annually.
Another saving came from technical support. Electron apps generate numerous tickets due to performance issues. After the migration, 60% of those tickets vanished. In my experience, reducing such complaints is a relief for any support team.
When Tauri is the Right Choice (and When It’s Not)
Tauri isn't a silver bullet. Here are some scenarios where it shines:
1. Apps with Heavy System Operations
If your application requires intensive processing, complex networking, or direct hardware access, Rust provides unparalleled control.
2. Startups Sensitive to Binary Size
Reducing installer size has a direct impact in emerging markets or areas with limited connections, significantly improving installation rates.
3. Applications Requiring Maximum Security
Rust eliminates common vulnerabilities, crucial for apps handling sensitive data. In 2025, Tauri passed a Trail of Bits security audit with flying colors.
When to Stick with Electron:
- No Rust Experience: The learning curve is real. If you need to launch in 6 weeks and no one has touched Rust, Electron is the fast track.
- Dependency on Specific Node.js Modules: Switching can be challenging if your app requires C++ bindings with no Rust equivalent.
- Legacy Browsers: If you need support for older operating systems, Electron might be your only option.
The Full Stack: Production Architecture in Tauri
In 2026, setting up a Tauri app looks like this:
Frontend: Use Vite with React (or your preferred framework). Vite is fast and integrates well with Tauri.
// tauri.conf.json
{
"build": {
"beforeDevCommand": "npm run dev",
"beforeBuildCommand": "npm run build",
"devPath": "http://localhost:5173",
"distDir": "../dist"
}
}
Backend Rust: Define your business logic as commands, events, and plugins. All this benefits from Rust's memory safety.
Update System: Tauri incorporates an auto-update system. You can use its own system or integrate with external services.
Cross-Platform Distribution: Tauri's CLI generates native installers for each OS.
With a single command: npm run tauri build. The CI/CD process is straightforward:
# .github/workflows/release.yml
name: Release
on:
push:
tags: ['v*']
jobs:
build:
strategy:
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v3
- uses: actions/setup-node@v3
- uses: dtolnay/rust-toolchain@stable
- run: npm install
- run: npm run tauri build
- uses: actions/upload-artifact@v3
with:
name: ${{ matrix.os }}-build
path: src-tauri/target/release/bundle/
The Growing Ecosystem (and Must-Know Plugins)
Tauri has a plugin system covering common use cases:
tauri-plugin-store: For encrypted data persistence.
tauri-plugin-sql: Embedded SQL client, ideal for offline-first apps.
tauri-plugin-fs-extra: For advanced filesystem operations.
tauri-plugin-websocket: Native WebSocket client with automatic reconnection.
And the Rust ecosystem offers a wide variety of crates that extend Tauri's capabilities.
A real case is Pake, a tool that turns any web app into a native desktop app, built entirely with Tauri. Isn't that amazing? Its codebase is much smaller than Electron alternatives, and the resulting app is significantly lighter.
The Decision You Should Make in the Next Two Weeks
If you're considering which stack to use for your next app, here’s a decision framework:
Choose Tauri if:
- You’ll be processing large files or need native performance
- Binary size impacts your app's adoption
- You have someone on the team willing to learn Rust
- Security and efficiency are priorities
Stick with Electron if:
- Your timeline is short and your team excels at JavaScript
- Critical dependencies lack a Rust equivalent
- Supporting legacy systems is a must
To conclude, my recommendation is not to rewrite everything at once. Start a new project in Tauri or migrate a specific module. The learning curve for Rust can be steep, but there are plenty of resources to help along the way.
Discord could have avoided complaints about excessive RAM usage. Slack could have significantly reduced its installer size. The technology to improve is already here. The question is: will you make the decision now or wait until users start complaining?