Reading, at your own pace.
Clear syntax highlighting, code folding, and split views. Collapse the sidebar and let the code unfold.
· 60 languages highlighted· Side-by-side or stacked· Light & dark
Open a project like opening a page.
Read the code, untangle the changes, make a few well-placed edits.
paperplane/src/main.rs
main.rs
1
// A little space to make sense of things.2
3
use folio::{App, Theme, Workspace};4
5
mod preview;6
mod tree;7
8
const PROJECT: &str = "paperplane";9
10
fn main() {11
tracing_subscriber::init();12
13
let project = Workspace::open(PROJECT)14
.expect("paperplane: project folder");15
16
let app = App::new()17
.workspace(project)18
.theme(Theme::System)19
.title("Paperplane")20
.run();21
22
if let Err(error) = app {23
eprintln!("paperplane exited: {error}");24
}25
}26
27
/// Say hi to the reader.28
fn greet(name: &str) -> String {29
format!("Hello, {name}!")30
}a59fa28 · xuyi, 2 hours ago — feat: ship Mac updates through Sparkle and R2
↳ One window. Your project. Just enough.Interactive demo · switch the view above
Files always stay localA truly native desktop feelNo account, ready on launch
Sometimes, you just want
a good look at the code.
An AI-written project, a repo you haven't opened in months,
or a config that needs two lines changed.
Folio keeps a quiet space for those moments.
Small edits, made easy.
Multi-cursor, find & replace, bracket pairing, undo. Editing stays light, and saving takes every change seriously.
· Multi-cursor editing· Project-wide search· Save conflict checks
The full story, in view.
See a file's changes against HEAD, trace who wrote the line you're on. Need a command? Pull up the terminal below.
· Git diff· Line-by-line blame· Project terminal
From opening
to understood.
Use the shortcuts you already know, and keep your attention on the code.
01 / OPEN⌘ O
Open the project
Pick a local folder. Several projects share one window, and switching keeps each one's state.
02 / FIND⌘ P
Find that line
Jump by filename with quick open, search for the context you need. Two files can sit side by side.
03 / KEEP⌘ S
Keep your thoughts
Edit a few spots and save. Next time, the projects and tabs return where you left them.
Lighter,
on purpose.
Native feel
Built with Rust + GPUI — the interface is drawn directly, no browser engine.
Your own files
Open local repositories. Reading and editing need no cloud and no sign-in.
It remembers
Projects, tabs, and unsaved edits come back, so an interruption never breaks the thread.
Keeps the needed tools
The terminal lives below the workspace. Open it when needed; commands keep running when it's closed.
You might also wonder.
Your code. A quieter place.
Your next project,
opened gently.
Download Folio for macOS
macOS 12+ · Apple silicon