postcard
A no_std, serde-compatible serializer and deserializer for Rust, designed for embedded and constrained environments.
What is postcard?
Postcard is a serializer and deserializer library for Rust that is fully compatible with the Serde framework and designed to work in `no_std` environments. It provides a stable, efficient wire format for serializing data structures, making it ideal for communication in embedded systems or other resource-constrained contexts. The library focuses on being a drop-in replacement for Serde while optimizing for memory usage, code size, and developer time.
Rust developers working on embedded systems, microcontrollers, or any constrained environment where the standard library is unavailable. It is also suitable for those needing a reliable, customizable serialization format for inter-process or network communication.
Developers choose Postcard for its seamless integration with Serde, stable wire format, and efficiency in `no_std` contexts. Its unique Flavors system allows deep customization of serialization behavior, making it versatile for bespoke protocols while maintaining low resource overhead.
Overview
A no_std + serde compatible message library for Rust
Use Cases
Best For
- Serializing data for communication between microcontrollers and desktop applications
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