A lightweight, read-only source code viewer with an IntelliJ‑like UI, written in Rust (egui). Built for quickly reading and reviewing a codebase — not editing it.
- IntelliJ New UI dark look — JetBrains Mono for code, tonal panel/editor separation, tool‑window headers.
- Project tree with the official IntelliJ (expUI) file/folder icons — source/test/resources root variants, special names (Dockerfile, .gitignore, build.gradle.kts, …) — plus indent guides and full‑width selection.
- Syntax highlighting via tree‑sitter (Rust, Kotlin, Java, Python, Go, JS/TS) with a syntect/Darcula fallback for everything else.
- Structure panel — AST‑derived symbol outline with IntelliJ kind icons (class/method/field/…), click to jump.
- ⌘+Click go‑to‑definition backed by a background‑built symbol index.
- In‑file search (⌘F) and project‑wide search / Find in Files (⇧⌘F) with live results, a code preview pane, and match highlighting.
- Back / Forward navigation (⌘[ / ⌘] or ⌥⌘← / ⌥⌘→, and mouse side buttons).
- Git integration (read‑only):
- file status colors in the tree (modified / added / deleted),
- gutter change bars vs HEAD (added / modified / deleted),
- current branch in the status bar,
- commit log panel + per‑commit changed files + unified diff viewer.
- Tool‑window toggles for the tree / structure / commit panels.
- Bottom breadcrumb + status bar.
Requires a Rust toolchain. libgit2 is built from source (vendored), so no system git library is needed.
# Run directly
cargo run --release -- /path/to/your/project
# Or build a double‑clickable macOS app bundle (CodeLook.app)
./make_app.sh
open CodeLook.app --args /path/to/your/projectYou can also launch and then use 프로젝트 열기 / Open Project to pick a folder.
| Action | Shortcut |
|---|---|
| Find in file | ⌘F |
| Find in project | ⇧⌘F |
| Go to definition | ⌘ + Click |
| Back / Forward | ⌘[ / ⌘] (or ⌥⌘← / ⌥⌘→, mouse side buttons) |
| Copy | ⌘C |
Tree‑sitter grammars: Rust, Python, JavaScript, TypeScript, Java, Go, Kotlin, JSON. All other file types fall back to syntect's TextMate grammars.
- Read‑only by design — the editor reverts any typing; it never writes your files.
- Git features require the opened folder to be inside a git repository.
See THIRD_PARTY_NOTICES.md. Bundles JetBrains Mono (SIL OFL 1.1), the IntelliJ expUI icons (Apache‑2.0), and the Darcula TextMate theme.
MIT — see LICENSE. (Bundled fonts/themes keep their own licenses.)