An open-source desktop IDE in the spirit of IntelliJ IDEA, built with Rust and Tauri.

_{Not affiliated with JetBrains. IntelliJ IDEA is a trademark of JetBrains s.r.o.}

Warning

OpenIDEA is early-stage software (0.1). Expect rough edges and breaking changes.

Features

• Editor — CodeMirror 6 with tree-sitter highlighting, folding, multi-caret, live templates and an IDEA-style keymap.
• Code insight — LSP-backed completion, navigation, find usages, rename and refactorings, diagnostics and inspections, plus a fast project-wide index.
• Search — Search Everywhere, Go to File / Symbol / Action, Find in Files.
• Run & debug — run configurations, DAP debugging, test runner, coverage and a profiler.
• Build tools — Maven and Gradle project sync and builds.
• Version control — Git (status, diff, commit, history, branches, blame) and GitHub pull requests.
• Tools — integrated terminal, database client (PostgreSQL, MySQL, SQLite, SSH tunnels), HTTP client, Docker, scratch files and TODO view.
• Languages — 60+ languages via declarative definitions in languages/: detection, comments, language server and debug adapter in one TOML file each.
• Plugins — sandboxed WebAssembly plugins against the wit/plugin.wit interface; see plugins/ for examples.

Building from source

Requirements: Rust 1.96+, Node.js 22+, pnpm, and the Tauri prerequisites for your platform.

pnpm install
pnpm tauri dev      # run the app in development mode
pnpm tauri build    # produce a release bundle

Language servers and debug adapters are not bundled; OpenIDEA finds them on PATH or offers to download them on first use.

Development

pnpm typecheck && pnpm lint && pnpm test       # frontend
cargo nextest run --workspace                  # backend tests
cargo clippy --workspace --all-targets -- -D warnings
cargo fmt --all
pnpm gen:bindings                              # regenerate src/bindings.ts after IPC changes
pnpm perf && pnpm perf:rust                    # performance checks vs perf/budgets.json

Project layout:

Path	Contents
crates/ide-*	Backend crates, one domain each (VFS, index, LSP, DAP, VCS, run, …)
src-tauri/	Tauri app: state and thin IPC command adapters
src/	React UI: platform/ (IPC, actions, keymaps), workbench/, ui/ (design system), features/
languages/	Language definitions
plugins/, wit/	Example plugins and the plugin interface

License

Apache License 2.0; see NOTICE. Bundled third-party assets, including icons from the IntelliJ Platform, are listed in THIRD_PARTY_LICENSES.md.