# clojerl/clojerl

Clojure for the Erlang VM (unofficial)

Repository: https://github.com/clojerl/clojerl
Canonical: https://ross.abutalabs.com/products/clojerl
Homepage: http://try.clojerl.io/
Language: Erlang
License: EPL-1.0
License Family: copyleft
Topics: clojure, erlang, programming-language, beam, erlang-vm
Last push: 2025-01-07T22:23:02+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4059, "days_push": 603, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1715, forks 45 (observed 2026-08-28T04:05:26.217234+00:00)

## What it is
Clojerl is an unofficial implementation of the Clojure programming language that runs on the Erlang VM (BEAM). It provides a REPL, compiler, and tooling so Clojure code can leverage Erlang's concurrency and reliability features.

## Use cases
- write clojure code on the erlang vm
- run clojure on the beam
- use clojure for scalable concurrent systems
- try clojure in a repl without jvm
- build erlang applications in clojure

## When to choose
- you want Clojure's syntax and immutability with Erlang's fault-tolerant runtime
- you're building distributed or concurrent systems on the BEAM and prefer Clojure over Erlang/Elixir
- you want to interoperate with existing Erlang libraries from Clojure

## When to avoid
- you need full JVM Clojure compatibility or the Java ecosystem
- you need production-grade support identical to official Clojure, since this is unofficial and differs in some features
- your team is already comfortable with Erlang or Elixir natively

## Facets
- artifact type: library
- maturity: active
- function: interpreter, compiler, programming-language
- domain: programming-languages, compilers, developer-tools
- platform: elixir, windows
- tags: clojure, erlang-vm, beam, repl, functional-programming, linux, macos, docker

## Member repositories
- clojerl/clojerl (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:26.217234+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:34:17.717851+00:00, confidence not recorded.
  - readme: https://github.com/clojerl/clojerl (fetched 2026-08-28T04:05:26.217234+00:00, sha 3bd65457a042)
- Data as of 2026-08-30T08:39:29.467469+00:00.