Tauri 2 in 2026: Building Desktop Apps With Web Technologies

Tauri and Electron solve the same problem — desktop applications built with web technology — and they solve it in opposite ways. Electron ships a browser with your app. Tauri uses the one already on the machine.

That single decision explains every difference between them, in both directions. This guide covers what it means in practice. Versions at the time of writing: Tauri 2.11 and Electron 43.

The architectural difference

An Electron app bundles Chromium and Node.js. You know exactly which rendering engine runs, on every machine, because you shipped it. The cost is that you shipped it — every install carries a browser.

A Tauri app has a Rust backend and renders in the operating system's webview: WebView2 on Windows, WKWebView on macOS, WebKitGTK on Linux. Nothing is bundled, so binaries are dramatically smaller.

And now the honest part, which many comparisons skip: you no longer control the rendering engine. Your app runs on three different browsers, at whatever version the user's OS provides. Modern CSS may behave differently on WebKitGTK than on WebView2. That is a real cost, not a footnote.

Comparison

Getting started

npm create tauri-app@latest
cd my-app
npm run tauri dev

The frontend is whatever you like — React, Vue, Svelte, plain HTML. Tauri does not care; it serves your built assets into a webview.

Commands: calling Rust from the frontend

This is the core pattern. Rust functions are exposed as commands, and the frontend invokes them:

// src-tauri/src/lib.rs
use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize)]
pub struct Report {
    title: String,
    rows: usize,
}

#[tauri::command]
async fn build_report(path: String) -> Result<Report, String> {
    let contents = std::fs::read_to_string(&path)
        .map_err(|e| format!("Could not read {path}: {e}"))?;

    Ok(Report {
        title: path,
        rows: contents.lines().count(),
    })
}

#[cfg_attr(mobile, tauri::mobile_entry_point)]
pub fn run() {
    tauri::Builder::default()
        .invoke_handler(tauri::generate_handler![build_report])
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}

// frontend
import { invoke } from '@tauri-apps/api/core'

const report = await invoke<{ title: string; rows: number }>('build_report', {
  path: '/tmp/data.csv',
})

Note the Result<Report, String> return type. A Rust error becomes a rejected promise on the frontend, so error handling crosses the boundary properly rather than silently returning undefined.

This is also where Tauri's performance argument actually lives. Heavy work — parsing large files, image processing, cryptography — runs in Rust rather than JavaScript. The webview stays responsive because it is not doing the work.

Permissions

Tauri 2 replaced the older allowlist with an explicit capability system. Nothing is available unless granted:

// src-tauri/capabilities/default.json
{
  "identifier": "default",
  "windows": ["main"],
  "permissions": [
    "core:default",
    "dialog:allow-open",
    "fs:allow-read-text-file",
    {
      "identifier": "fs:scope",
      "allow": [{ "path": "$DOCUMENT/**" }]
    }
  ]
}

Read that scope line carefully. The app can read text files, but only under the user's Documents directory. If a bug or a compromised dependency tries to read ~/.ssh/id_rsa, the request fails at the framework rather than succeeding quietly.

Electron can be configured to be equally safe, but the default is permissive and the burden is on you. Tauri's default is restrictive and the burden is on you to open it. For most teams the second is safer.

Mobile

Tauri 2 added iOS and Android targets:

npm run tauri ios init
npm run tauri android init
npm run tauri android dev

Worth being clear about what this is. It is your web frontend in a native webview with a Rust core — closer to Capacitor than to React Native, which renders genuinely native components. For a data-oriented or forms-heavy application that is entirely reasonable. For something that should feel platform-native, it is not the same thing.

When Electron is still the right choice

• You need Node APIs or the npm ecosystem in the backend. Tauri's backend is Rust; a Node library does not port over.
• Consistent rendering matters more than size. If your UI is visually complex, shipping one known Chromium beats debugging three webviews.
• Your team does not write Rust. You can go far with the templates, but the moment you need custom native work you need Rust, and that is a real hiring and learning cost.
• You depend on mature Electron tooling. Auto-update, crash reporting, native modules — the ecosystem is a decade deep.

When Tauri wins

• Distribution size matters. A few megabytes against tens changes download completion rates, especially on poor connections.
• The app is long-running. Lower idle memory is noticeable when something sits open all day beside other applications.
• Security posture is a requirement. Capability-scoped permissions are much easier to justify in review than "we configured Electron carefully".
• You want desktop and mobile from one codebase and a webview UI is acceptable.
• There is real computation to do. Rust in the backend is a genuine advantage, not a stylistic preference.

Practical advice

Test on all three platforms early. Not before release — early. The system webview is Tauri's main trade-off and you want to discover a WebKitGTK rendering difference in week two, not the week you ship.

Keep the frontend conservative. Bleeding-edge CSS is exactly where the three engines diverge.

And put real work in Rust rather than treating it as a thin shell. If everything happens in JavaScript, you have taken on Rust's learning curve without collecting its benefit.

Frequently asked questions

Is Tauri better than Electron?

Neither is better in general. Tauri produces far smaller, lower-memory apps with a stricter security model; Electron gives you one known Chromium everywhere plus Node and a decade of tooling. Choose on which trade-off you can afford.

What is the latest version of Tauri?

Tauri 2.11, released July 2026, with @tauri-apps/api at 2.11.1. Tauri 2 is the current major line and added iOS and Android targets.

Do I need to know Rust to use Tauri?

Not to start — the templates work without writing any. You need it as soon as you want custom backend commands or native integration, which most non-trivial applications eventually do.

Why are Tauri apps so much smaller than Electron apps?

Electron bundles Chromium and Node with every app; Tauri uses the operating system's existing webview and ships a Rust binary. That is the whole difference — and it is also why rendering can vary across platforms.

Does Tauri work the same on Windows, macOS and Linux?

Mostly, but not exactly. Each platform supplies its own webview — WebView2, WKWebView and WebKitGTK — so modern CSS and JavaScript can behave differently. Test on all three from early in the project.

Can Tauri build mobile apps?

Yes, Tauri 2 targets iOS and Android. It is your web UI in a native webview with a Rust core, comparable to Capacitor rather than React Native, which renders truly native components.

Is Tauri secure by default?

More so than Electron by default. Capabilities must be granted explicitly and filesystem access can be scoped to specific paths, so an unrequested read fails at the framework. Electron can be configured just as tightly, but you have to do it.

Can I migrate an Electron app to Tauri?

The frontend usually ports with little change. The backend does not — Node code must be rewritten in Rust, and any native Node module needs a Rust equivalent. Scope the migration around the backend, not the UI.