Adds an Agents feature: start coding agents (Claude Code, Codex, Gemini CLI, Copilot, Cursor, OpenCode and more, plus custom ones from <config>/agents/<id>.toml) on a task, each in its own git worktree or in the checkout, and follow them from the IDE. - ide-agent crate: one ACP agent process per task (newline-delimited JSON-RPC), the timeline folded from session/update, permission requests, session settings (model, mode, thinking effort), slash commands, context usage, a message queue with "send now", @-referenced files (embedded when the agent takes embedded context) and images. Tasks persist and their sessions are reloaded with session/load. - Agents tool window grouped by what each task needs; a task opens as an editor tab with the conversation, a permission banner and its changes (diff against the task's base). New Task is an editor page. - Composer: @ file references from the project index, / commands, up/down history, pasted or dropped images, Shift+Tab cycles the mode. "Send to Agent" adds the editor selection or Project view files. - Editor: the Switcher lists every open editor, not only files; editor kinds can mark their tabs restorable, so agent tabs survive a reload. - Select popups size to fit short option details.
The IDE you know, rebuilt in Rust.
https://github.com/user-attachments/assets/234dd54c-1255-4b3a-b35c-533d78d737c0
OpenIDEA brings the IntelliJ IDEA way of working — its keymap, its tool windows, its search-everything habits — to a native app with a Rust core.
Editor, code insight, debugger, Git, terminal, database and HTTP clients, for 60+ languages. Builds for macOS, Windows and Linux.
Benchmark
Opening freqtrade (Python, ~770 files) with warm caches, median of 5 runs:
| OpenIDEA | IntelliJ IDEA 2026.2.3 | |
|---|---|---|
| Window with the project | 0.9 s | 3.1 s |
| Ready (CPU settled) | 1.1 s | 13.2 s |
| Memory (USS, all processes) | 169 MB | 2011 MB |
| CPU time until ready | 2.4 s | 47.9 s |
| Idle CPU | 4 % of a core | 7 % of a core |
| Quit | 0.3 s | 5.9 s |
A release build of OpenIDEA from main and IDEA with default settings and plugins, on
Windows 11, 32-core AMD, 62 GB RAM.
IDEA analyses Python more deeply, so "ready" doesn't mean the same work on
both sides. Both are measured from the outside, the same way: see
perf/compare to run it on your machine and projects.
Build
pnpm install
pnpm tauri dev
Rust 1.96, Node 22, pnpm and the Tauri prerequisites.
License
Apache 2.0. Bundled third-party assets are listed in THIRD_PARTY_LICENSES.md.
Not affiliated with JetBrains. IntelliJ IDEA is a trademark of JetBrains s.r.o.