Tauri vs Electron in 2026: why our desktop app is 10x smaller

When we built Ceesvee — a desktop CSV editor that opens files big enough to kill Excel — the first real decision wasn't the UI. It was the runtime: Electron or Tauri. We picked Tauri. Here's the scorecard after actually shipping.

The one-table version

	Tauri	Electron
Installer size	~10–20 MB	~80–150 MB
Memory at idle	Light (OS webview)	Heavy (bundled Chromium)
Backend language	Rust	Node.js
Rendering consistency	Varies by OS webview	Identical everywhere
Ecosystem maturity	Growing fast	Enormous, battle-tested
Your team already knows it	Probably not	Probably yes

Why Tauri won for us

Size and feel. Electron ships a full copy of Chromium with every app. Tauri uses the webview your OS already has — WebView2 on Windows, WKWebView on macOS. Ceesvee installs at a fraction of what an Electron build would, launches fast, and idles light. For a utility users open beside their real work, that matters. Nobody wants their CSV editor eating a browser's worth of RAM.

Rust where it counts. Ceesvee's whole reason to exist is streaming 100MB+ files without loading them into memory. That work happens in Rust — parsing, indexing, chunked reads — while React renders only the visible rows through a virtualized grid. A million-row file scrolls like a hundred-row one. Could Node do it? Mostly, with care. But Rust made the fast path the default path.

Same frontend DX. This part surprised people: day-to-day, building Tauri feels like building any React app. Hot reload, Tailwind, the works. The Rust side stays small — commands the UI invokes for heavy lifting.

Where Electron still wins (honesty section)

Rendering consistency. Electron's bundled Chromium renders identically on every machine. Tauri inherits whatever webview the OS provides — which means a Windows 10 machine with a stale WebView2 can render differently than your dev box. We hit exactly one CSS bug like this. It cost an afternoon. If your app is pixel-critical across ancient enterprise machines, this is a real consideration, not a footnote.

Ecosystem depth. Need deep OS integration someone's already packaged — auto-updaters with staged rollouts, native menus with every edge case handled, a plugin for some obscure hardware? Electron's decade of ecosystem is genuinely valuable. Tauri's plugin story is good and improving, but you'll occasionally write the thing yourself.

Team ramp. If your team is all-JavaScript and the app needs nontrivial native work, the Rust learning curve is real. Our take: the curve is front-loaded and worth it, but "worth it" assumes someone actually climbs it.

The decision framework

• Utility or tool where footprint matters (editors, trays, companions) → Tauri, easily
• Performance-critical native work (big files, crypto, parsing) → Tauri — Rust is the feature
• Pixel-perfect UI across unknown enterprise machines → Electron, grudgingly
• Heavy reliance on existing Electron-ecosystem plugins → Electron, pragmatically
• Greenfield in 2026 with none of the above constraints → we default to Tauri