rust-lang/futures-rs

Health v2 · maintenance only

Adoption not part of the score

5909 stars · 705 forks observed · 2026-08-28

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

futures-rs is the foundational Rust library for asynchronous programming, providing core trait definitions like Stream plus utilities such as join!, select!, and futures combinators. It supports zero-cost async abstractions and works in no_std environments including bare metal.

Use cases

• write async code in rust
• combine multiple futures with join and select
• work with async streams in rust
• use async in embedded no_std projects
• build async control flow utilities

When to choose

• you need core async traits and combinators in Rust
• you want no_std async support
• you're building async runtimes or libraries on stable foundations

When to avoid

• you only need an async runtime like tokio for executing tasks
• you want batteries-included async I/O rather than foundational traits

Facets

library · maturity stable

concurrency developer-tools programming-languages developer-tools rust cross-platform embedded async futures streams no-std combinators zero-cost-abstraction algorithms

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markdown · JSON · MCP: product_card(name="rust-lang/futures-rs")