A text editor should not need a browser.
levium is a Markdown editor written in Rust with egui. No Electron, no Tauri, no WebView — 6 MB on disk, 45 MB in memory, on screen in 0.18 seconds.
Free 30-day trial · Windows 10 / 11 · 64-bit
6 MB
Install size
45 MB
Memory when idle
0.18 s
Cold start
0
Browser engines
01Performance
Performance, measured
The same job, without a browser engine inside the process. Lower is better in every row.
Install size
016MB
27× smaller than Electron
Memory (idle)
0245MB
7× less memory than Electron
Cold start
030.18s
13× faster to launch
02Built native
Built like a native app — because it is one
No hidden renderer, no runtime to boot, no web layer pretending to be a desktop window.
Native, not a browser
There is no Chromium, no WebKit and no WebView2 anywhere in the process. levium draws its own window with egui and talks straight to the operating system — which is why it weighs megabytes instead of hundreds of them.
Instant startup
A lean Rust release build with LTO. Nothing has to boot before your first keystroke.
Light on memory
No renderer process, no JavaScript heap, no idle tax while you are just reading.
Live, in-place rendering
Type Markdown and watch it format itself. No split preview pane, no modal window.
Your files stay yours
Plain .md files on your disk. No account, no sync server, no lock-in.
03Themes
Light, dark, and everything you write in between
Two themes, one codebase, zero web views. The whole interface is redrawn by the GPU every frame.
04Pricing
One-time purchase. Pay once, keep it forever.
one-time · Regular price after launch:$9.9
Checkout is not open yet. Start the free 30-day trial now — the buy button goes live soon.
What you get
- Lifetime licence — pay once, keep it
- Free updates for the 1.x line
- Native app — no Electron, Tauri or WebView
05Field Notes
From the blog
levium vs Electron: 6 MB, 45 MB, 0.18 s
What a native Rust + egui editor costs your disk, your RAM and your patience — compared with an Electron build doing the same job.
Start readingWhy we skipped Tauri and WebView too
Tauri fixes Electron's download size. It does not remove the browser engine from the process — and that is where memory and startup time live.
Start readingA Typora alternative that opens instantly
Typora set the bar for inline Markdown editing. Here is the same idea rebuilt as a native Rust application — and an honest list of what it still does better.
Start readingTry it before you decide.
Download the trial, write something, and see how quickly it gets out of your way.
Free 30-day trial · Windows 10 / 11 · 64-bit · 6 MB