rust-lang/flate2-rs

Health v2 · maintenance only

Adoption not part of the score

1120 stars · 204 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

flate2 is a Rust library for streaming compression and decompression of DEFLATE-based formats: raw DEFLATE, zlib, and gzip. It supports multiple backends including pure-Rust miniz_oxide, zlib-rs, and C libraries like zlib and zlib-ng, selectable via Cargo feature flags.

Use cases

• compress and decompress gzip files in Rust
• read and write zlib streams
• compress data with DEFLATE in Rust
• choose a fast zlib backend like zlib-ng or zlib-rs
• stream-compress data without loading it all in memory
• avoid needing a C compiler for compression in Rust

When to choose

• you need gzip, zlib, or DEFLATE support in a Rust project
• you want a pure-Rust default backend with optional high-performance C backends
• you need streaming Read/Write-based compression APIs
• you want to avoid duplicate zlib dependencies via zlib-ng-compat

When to avoid

• you need non-DEFLATE formats like zstd, bzip2, or lz4
• you are not working in Rust
• you need archive formats like tar or zip (combine with dedicated crates)

Facets

library · maturity stable

compression file-system developer-tools files developer-tools cross-platform rust cross-platform deflate gzip zlib zlib-ng miniz-oxide streaming-compression rust-crate

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