OpenIDEA is an open-source, native application that replicates IntelliJ keymaps, tool windows, and search habits using a Rust core. Benchmarked on a 32-core Windows machine opening a 770-file Python repository, it starts in 1.1 seconds and uses 169 megabytes of memory compared to IntelliJ's 13.2 seconds and 2 gigabytes. It includes an editor, debugger, terminal, and database clients for over sixty languages while building on Tauri and Rust.
It is worth trying if you like JetBrains ergonomics but are tired of JVM memory usage and sluggish startup times. The catch is that the analysis engine is not nearly as deep as IntelliJ's, meaning code insight will lag behind on large codebases. This is an early-stage alternative, so expect missing plugins and rough edges if you rely on deep language-specific tooling.
more: https://github.com/l0ng-ai/openidea
my other side: ivo.blogspot.com
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