Tauri vs Electron in 2025: Why We Switched and What We Learned

Electron bundles Chromium and Node.js inside every app. Every Electron app ships its own copy of Chrome — which is why even simple Electron apps are 100–200 MB. The upside: you get a consistent rendering engine on every OS and the entire Node.js ecosystem.

Tauri uses the OS's built-in webview (WebView2 on Windows, WKWebView on macOS, WebKitGTK on Linux) and Rust for the backend. A basic Tauri app is 5–15 MB. The webview is whatever the OS ships, which introduces minor cross-platform rendering differences but is rarely a real problem in practice.

The choice between them is essentially: bundle size and performance (Tauri) vs ecosystem maturity and rendering consistency (Electron).

A 150 MB Electron app isn't just a large download. It's 150 MB of disk space and a significant memory footprint even when idle. On machines with constrained storage or RAM — which is a real concern for enterprise and education customers in many markets — this matters.

Our InstituteOS (educational ERP) was designed for institutes that often run on mid-range Windows laptops. A Tauri build is under 12 MB installed. An equivalent Electron build would be 130+ MB. For software that's distributed via USB drives or slow internet connections, this difference is significant.

If you're building for professional users on modern hardware in high-bandwidth environments, bundle size is minor. If you're building for widespread distribution to varied environments, Tauri wins.

This is where Tauri's real trade-off lives. The Tauri backend (the part that talks to the filesystem, database, and OS APIs) is written in Rust. Rust is fast, memory-safe, and excellent — but it has a steep learning curve and a smaller talent pool than Node.js.

For our team, Rust was an investment worth making. Docufiy Desktop (before we moved it to .NET) and SecurityOS both benefit from Rust's performance and memory safety for file processing and encrypted storage operations.

If your team doesn't know Rust, Electron lets you use Node.js — a language most web developers already know. The time to first working feature is faster with Electron if Rust is new to your team.

The middle path: Tauri allows you to write backend plugins in JavaScript/TypeScript via the Sidecar feature, though this partially defeats the purpose.

Tauri has a significantly better default security model than Electron. By default, Tauri follows a least-privilege approach — the frontend has no access to the filesystem, shell, or OS APIs unless you explicitly grant permissions in the Tauri config.

Electron's default is broader access, and many Electron apps have had security vulnerabilities from running Node.js in the renderer process with nodeIntegration: true.

For SecurityOS — a security operations tool — Tauri's model was a hard requirement. We needed local encrypted storage, and we needed confidence that the frontend code couldn't access it without going through our explicit Rust backend.

For most business apps, both frameworks can be made secure with discipline. But Tauri makes the secure path the default.

We choose Tauri when: - Bundle size matters (enterprise distribution, bandwidth-constrained users) - The app handles sensitive data (Rust's memory safety reduces attack surface) - Performance is critical (file processing, local databases, CPU-heavy tasks) - We want offline-first architecture with local encrypted storage

We choose Electron when: - The team needs to move fast and knows Node.js - The app requires many npm packages that don't have Rust equivalents - Rendering pixel-perfect consistency across all OS versions is critical - The project needs a large plugin ecosystem

We choose .NET/WPF when: - The app is Windows-only - The organization has a .NET-heavy existing codebase - We need deep Windows API integration (COM, registry, service management)

Chronicle is still on Electron because it was built before we standardized on Tauri, and its use of several Node.js media libraries would require significant Rust rewriting. For new projects, we default to Tauri.

If you're starting a new desktop app project in 2025:

- Choose Tauri if performance, bundle size, and security are priorities and your team can invest in Rust - Choose Electron if your team knows JavaScript and you need to ship fast - Choose .NET if you're targeting Windows-only enterprise environments

The framework matters less than shipping. Pick the one your team can maintain, and build it well.

We're happy to discuss which is right for your specific case — it's context-dependent enough that a 15-minute call is worth more than any article.