clojure-emacs/cider

Health v2 · maintenance only

Adoption not part of the score

3677 stars · 653 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

CIDER is an Emacs package that turns Emacs into a full interactive development environment for Clojure and ClojureScript. It connects to a running Clojure process over nREPL to provide compilation, code completion, debugging, documentation lookup, testing, and a rich REPL experience.

Use cases

• set up a Clojure IDE in Emacs
• interactively evaluate Clojure code from my editor
• debug Clojure programs with a source debugger
• run Clojure tests from Emacs
• get code completion and doc lookup for Clojure
• connect Emacs to a running nREPL server
• do REPL-driven development in ClojureScript

When to choose

• you develop Clojure or ClojureScript and use Emacs as your editor
• you want an interactive, REPL-centric workflow like SLIME for Common Lisp
• you need integrated testing, debugging, and documentation lookup for Clojure

When to avoid

• you don't use Emacs (consider Calva for VS Code or Cursive for IntelliJ)
• you only need syntax highlighting without a live REPL connection
• you work in a language other than Clojure

Facets

plugin · maturity active

editor developer-tools testing developer-tools programming-languages text-editors editor-plugin cross-platform clojure clojurescript repl interactive-programming nrepl emacs-lisp ide debugging emacs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="clojure-emacs/cider")