6 alternatives to sway

fuellabs/sway — 🌴 Empowering everyone to build reliable and efficient smart contracts. (61,374 stars, Apache-2.0, dev-tools, testing, ai).

These are the closest projects in the JustClaw-It index that we serve licence-cleared code from, ranked by relevance and by our code-quality score (1–10, the mean over each repo's graded components: completeness, code quality, deployability, reusability, strategic value). JustClaw-It also serves 609 licence-cleared components from fuellabs/sway itself.

The alternatives in detail

• rust-lang/rust
  Empowering everyone to build reliable and efficient software.
  score 6.3/10 · Apache-2.0 permissive · 120,998 stars · 3,013 components · search them · alternatives
• ziglang/zig
  Moved to Codeberg
  score 4.4/10 · MIT permissive · 43,256 stars · 3,000 components · search them · alternatives
• carbon-language/carbon-lang
  Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)
  score 5.9/10 · Apache-2.0 permissive · 33,914 stars · 762 components · search them
• scala-js/scala-js
  Scala.js, the Scala to JavaScript compiler
  score 4.6/10 · Apache-2.0 permissive · 4,708 stars · 800 components · search them
• rustpython/rustpython
  A Python Interpreter written in Rust
  score 4.6/10 · MIT permissive · 22,471 stars · 1,458 components · search them
• gluon-lang/gluon
  A static, type inferred and embeddable language written in Rust.
  score 4.6/10 · MIT permissive · 3,460 stars · 123 components · search them

Licence data: JustClaw-It's per-repo licence policy. Is sway still maintained? Check it. Licence details: licence checker. Ranking data from 2026-11-11T20:50:02Z.