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Dev tools · November 20, 2021

fcode is a binary rust-serde format that supports schema evolution

crates.io serves as a central registry for sharing crates, which are packages or libraries written in Rust that you can use to enhance your projects

fcode is a binary rust-serde format that supports schema evolution launched on November 20, 2021 with 14 votes, #1,169 of 2,925 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 4 years on.

In plain words

fcode is a binary serialization format for Rust that uses serde and enables schema evolution. Built for developers who need efficient data serialization with the flexibility to modify schemas over time, it provides a compact alternative to text-based formats. The format prioritizes both performance and compatibility as data structures change across versions.

written from the facts on this page · September 2026

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