qiaojianlong
c4b87ae09e
Configuration navigation from YAML/properties still waited for a cold index the first time and repeated the lookup between the ⌘-hover probe and the click. - Trusted projects with a Maven/Gradle/Eclipse build file start Java shortly after opening. Once JDT reports ServiceReady, the app calls the new openidea.java.configuration.warmup command: a low-priority background job builds the configuration index one project at a time (open YAML/properties modules first), waits for workspace builds, has a 30 s budget per project, and only fills free cache room. - Index builds take a cancellable per-project lock instead of one global lock, so a background build never delays another project, and a warmed snapshot is dropped if the Java model changed meanwhile. - In YAML/properties the editor underlines the whole key (hyphens and dots included), hover and Go to Definition share one bounded request per key, and the declaration chooser names the whole key. Bundle java-usages 1.6.0 is rebuilt reproducibly with build.py against JDT LS 1.63.0-202610191322 (SHA-256 33cfa1bb…). The real-JDT harness checks that the first lookup reuses the warmed index. Co-authored-by: qjlqyf <109515705+qjlqyf@users.noreply.github.com>
The IDE you know, rebuilt in Rust.
Download · Benchmark · Plugins · Community
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.
Plugins
Plugins add actions, completion, quick fixes, tool windows, custom editors, themes, file icons and languages. They run as sandboxed WebAssembly components; themes, icon themes and languages need no code at all.
Install them from Settings › Plugins, or start your own with
openidea-plugin new — see Writing OpenIDEA plugins and
the official plugins. The plugin API is still a preview.
Community
-
Discord — questions, feedback and release news.
-
WeChat group — scan to join:
License
Apache 2.0. Bundled third-party assets are listed in THIRD_PARTY_LICENSES.md.
Database tool window notes, including Oracle Instant Client setup, are in
docs/databases.md.
Not affiliated with JetBrains. IntelliJ IDEA is a trademark of JetBrains s.r.o.