# gleam-lang/gleam

⭐️ A friendly language for building type-safe, scalable systems!

Repository: https://github.com/gleam-lang/gleam
Canonical: https://ross.abutalabs.com/products/gleam
Homepage: https://gleam.run
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: gleam, programming-language, compiler, erlang, statically-typed
Last push: 2026-08-26T13:49:46+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 95, longevity 100
- inputs: {"age_days": 3716, "days_push": 7, "days_rel": 32, "gap_med": 22, "n_releases_24m": 26}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 21827, forks 1010 (observed 2026-08-28T04:11:32.118003+00:00)

## What it is
Gleam is a statically typed, functional programming language that compiles to Erlang and runs on the BEAM virtual machine. It ships with a built-in compiler, build tool, package manager, formatter, and language server, and interoperates with Erlang and Elixir packages.

## Use cases
- build type-safe scalable backend services on the Erlang VM
- learn a statically typed functional programming language
- write concurrent fault-tolerant systems with millions of green threads
- interoperate with existing Erlang and Elixir packages
- create a new web service project with a modern toolchain
- migrate from Elixir or Erlang to a type-safe language

## When to choose
- you want BEAM reliability and concurrency with a strong static type system
- you need no null values, no exceptions, and clear compiler error messages
- you want an all-in-one toolchain with compiler, build tool, and formatter included
- you are building planet-scale services like WhatsApp-style workloads

## When to avoid
- you need a mature ecosystem with decades of libraries and hiring pool
- your team depends on tooling outside the BEAM ecosystem
- you need low-level systems programming or direct hardware control
- you require languages with guaranteed long-term corporate backing

## Facets
- artifact type: cli-tool
- maturity: active
- function: compiler, programming-language, build-tool, package-manager, formatter, type-system, linter
- domain: programming-languages, compilers, developer-tools, backend, microservices
- platform: windows, bsd, cross-platform, cli, elixir
- tags: gleam, erlang, beam, statically-typed, functional-programming, actor-concurrency, language-server, rust, linux, macos

## Member repositories
- gleam-lang/gleam (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:32.118003+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 2026-08-29T16:57:47.328120+00:00, confidence not recorded.
  - readme: https://github.com/gleam-lang/gleam (fetched 2026-08-28T04:11:32.118003+00:00, sha e504fa3b0c59)
  - homepage: https://gleam.run (fetched 2026-08-29T07:56:12.908751+00:00, sha 95ded8903961)
  - site_page: https://gleam.run/install (fetched 2026-08-29T07:56:12.919980+00:00, sha b1321f943129)
  - site_page: https://gleam.run/documentation (fetched 2026-08-29T07:56:12.918083+00:00, sha c2a9dcb87e59)
- Data as of 2026-08-30T08:39:29.467469+00:00.