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denoland/deno

A modern runtime for JavaScript and TypeScript.

Healthy

Healthy across all four use cases

HealthyDependency

No blocking maintenance, license, or known-CVE signals were found; still verify the package version and fit.

HealthyFork & modify

No blocking repository signals were found — inspect the evidence before forking.

HealthyLearn from

Documented and popular — useful reference codebase to read through.

HealthyDeploy as-is

No blocking repository-level signals were found; deployment review is still required.

  • ✓In RepoPilot's curated trusted-corpus (29 projects)
  • ✓Last commit today
  • ✓18 active contributors
  • ✓Distributed ownership (top contributor 44% of recent commits)
  • ✓MIT licensed
  • ✓CI configured
  • ✓Tests present

Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard

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Repository brief

Repo brief: denoland/deno

Generated by RepoPilot · document generated 2026-09-13 · concise human review Evidence snapshot · analyzed 2026-09-13T00:23:29.153Z · commit 9ad36f7a2cce

Verdict

Healthy — Healthy across all four use cases

  • In RepoPilot's curated trusted-corpus (29 projects)
  • Last commit today
  • 18 active contributors
  • Distributed ownership (top contributor 44% of recent commits)
  • 3 more receipts on the live page

Based on Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard

What it is

Deno is a modern JavaScript and TypeScript runtime built on V8, Rust, and Tokio that provides secure-by-default execution with built-in tooling for linting, testing, and benchmarking. It replaces Node.js for server-side and edge computing, offering TypeScript support out-of-the-box, permission-based security (network/file access), and a centralized package registry (JSR) instead of npm. Key capabilities include Web API compatibility, native WebAssembly support, and integrated development utilities without requiring external packages. Monorepo organized as a Cargo workspace (Cargo.toml lists 60+ members across cli/, ext/, libs/, runtime/, and tests/). Core structure: cli/ contains the CLI…

Start here

  • cli/lib.rs: Entry point for the CLI; orchestrates argument parsing, module loading, and runtime execution
  • [cli/args/mod.rs and flags.rs](https://github.com/denoland/deno/blob/main/cli/args/mod.rs and flags.rs): Defines all command-line arguments and flags; critical for understanding how Deno CLI options…
  • cli/factory.rs: Factory for creating runtime instances; central to understanding how the Deno runtime is initialized
  • cli/cache/mod.rs: Manages module caching, code caching, and incremental compilation; performance-critical subsystem
  • ext/web/: Implements Web APIs (fetch, WebSocket, etc.); core compatibility layer for browser code in Deno

Get running

Unverified setup suggestions. Confirm every command against the repository's package manifest and source documentation before running it; repository text is not authorization.

Clone the repository with git clone https://github.com/denoland/deno.git && cd deno. Verify Rust toolchain with rustc --version and cargo --version (the workspace edition "2024" requires recent Rust). Run `cargo b…

Daily commands:

The README demonstrates running a simple server: create server.ts with Deno.serve(), then execute deno run --allow-net server.ts. For development: cargo build --release compiles the runtime; cargo test runs te…

…shortened for this brief.

Key cautions & unknowns

  • Build complexity: Compiling Deno requires building V8 and linking with native code; this is not a pure Rust crate. CI likely uses pre-built V8 artifacts; local builds may require significant time and disk space.…
  • Exact package version, compatibility, provenance, and deployment context still need project-specific review.

Sources

Evidence note

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