Open source alternatives to IntelliJ IDEA

One project on starwire does the same job. Ranked by how much of what IntelliJ IDEA does each one covers, read from its README and website. Ties go to the most active.

What IntelliJ IDEA does

Code editing with smart completioncore
Refactoringcore
Debuggercore
Build tool and test integration
Git integration
Plugins
Database and framework tools

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
openideaNative IDE in Rust with an IntelliJ-style keymap, debugger, Git and terminal	Replaces it49%	9.0k+1.2k	2,218	today	92%	Install like an app	Apache-2.0
Covers 2 of 3 core jobs. Not shown: Refactoring; Build tool and test integration.See the evidence Code editing with smart completioncoreYesEditor, code insight, debugger, Git, terminal RefactoringcoreNot shownNeither the README nor the website mentions it. DebuggercoreYesEditor, code insight, debugger, Git, terminal Build tool and test integrationNot shownNeither the README nor the website mentions it. Git integrationYesEditor, code insight, debugger, Git, terminal PluginsYesPlugins add actions, completion, quick fixes, tool windows Database and framework toolsYesdatabase and HTTP clients, for 60+ languages

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