How to Migrate an Electron App to Tauri: A Practical Plan

Teams usually look at moving from Electron to Tauri for one of three reasons: the installer is large, memory use is high, or they want a tighter security model. The good news is that your interface, written in HTML, CSS and JavaScript or TypeScript, mostly carries over. The work is in the layer underneath. This article is a practical plan for that migration. If you are still deciding whether to move at all, read Tauri vs Electron first.

Step 1: Decide whether migrating is worth it

A migration is a project, not a refactor. It pays off when size, memory or security are real problems for your users, or when your back end is thin enough that rewriting it is cheap. It is a poor idea if your app depends heavily on Chromium-only features, on many native Node.js modules, or if nobody on the team is willing to learn some Rust. Write down the specific problem you expect Tauri to solve, and a way to measure it, before you start.

Step 2: Audit what your main process actually does

In an Electron app, the main process is a Node.js program with full access to the machine. Open it and list everything it does. Group the findings into these buckets.

• Window and menu management: creating windows, tray icons, application menus, global shortcuts. Tauri covers these through its core APIs and plugins.
• File system and dialogs: reading and writing files, open and save dialogs. Covered by official plugins, with explicit permissions.
• Network and storage: HTTP calls, local databases, settings. Often simpler to move into Rust or into the web layer, depending on where the data should live.
• Native modules and child processes: anything using native Node add-ons or spawning command-line tools. This is the bucket that decides how hard the migration is.
• Auto-update and crash reporting: these are replaced, not ported. Plan them as separate pieces of work.

Step 3: Map IPC to commands

Electron apps talk between the page and the main process with ipcRenderer and ipcMain. Tauri replaces this with commands: Rust functions marked with #[tauri::command] that the page calls with invoke. Create a table with one row per Electron IPC channel and decide what each becomes. A channel that only reads a file may become a call to the official file system plugin with no Rust at all. A channel that runs business logic becomes a Rust command.

#[tauri::command]
fn word_count(text: String) -> usize {
    text.split_whitespace().count()
}

// register it when building the app
// tauri::Builder::default().invoke_handler(tauri::generate_handler![word_count])

import { invoke } from "@tauri-apps/api/core";

const count = await invoke<number>("word_count", { text: "hello migration world" });

Tauri 2 uses a capability system: the front end can only call what you explicitly allow. Treat this as a design review for free. Every permission you are forced to grant is a place where your old app was trusting the page too much.

Step 4: Decide what to do with Node.js code you cannot drop

You have three honest options for logic that lives in Node.js. Rewrite it in Rust when it is small, performance sensitive or security sensitive. Move it into the web layer if it does not need system access. Or keep it as a sidecar, an external executable bundled with the app and started by Tauri, when rewriting is not worth it yet. A sidecar lets you migrate the shell first and replace the pieces later, but it also means you still ship and maintain that runtime.

Step 5: Test the interface on every web view

Electron shipped one Chromium. Tauri uses the system web view: WebKit on macOS, WebView2 on Windows and WebKitGTK on Linux. Run through your whole interface on each platform you support. The usual surprises are CSS features that arrive at different times, differences in date and input handling, fonts that render differently, and drag and drop behaviour. Fix these in the front end, not with platform hacks in Rust. Do this early, because it can change design decisions.

Step 6: Rebuild packaging, signing and updates

This is the step teams under-plan. Installers, code signing, macOS notarisation and the auto-update flow all change. Tauri has an updater plugin that verifies update bundles against a signing key you generate, so you need a safe place to store that private key and a clear process for releases. Test an update from your oldest supported version to the newest, on a clean machine, before you tell users about the new app.

Step 7: Roll out in stages

1. Ship the new build to an internal group first and collect crash reports and logs.
2. Move to a small percentage of real users, with a way to compare behaviour against the Electron build.
3. Keep the Electron build available until you are confident, and decide in advance what result would make you roll back.
4. Plan how existing users get from one app to the other: same bundle identifier and data locations make this smoother; different ones need a migration step for settings and files.

A realistic order of work

Start with a thin Tauri shell that loads your existing front end and one real feature end to end. That proves the toolchain, signing and the web view on all platforms in a few days rather than weeks. Then port the remaining IPC channels in order of risk, hardest first. Leave cosmetic work and the updater for last, but not so late that you discover a signing problem the week before launch.

Need a second pair of hands?

We build desktop apps with Tauri and Rust, including Cut Video Gaps for macOS. If you would like an honest migration estimate, or a review of whether you should migrate at all, tell us about your app.