Crate

postcard

Browse Rust repositories that depend on postcard.

166

Repositories

92%

Actively maintained

152

Updated ≤ 30 days

488k

Total stars

162

Owners

Counted from the Cargo.toml manifests of the 166 indexed repositories that declare postcard as a dependency — not download counts. Dependency data last verified 2026-08-13.

Browse 166 repositories using postcard in Repos →

Often used with

Crates that show up unusually often in postcard projects. The most distinctive pairings rank first — crates these projects use far more than the average indexed Rust project does, not just crates that are popular everywhere. Each percentage is the share of postcard projects that also use it.

inventory10.8%chacha20poly130510.2%num-bigint14.5%blake322.3%rmp-serde11.4%moka11.4%serde_bytes10.8%wasm-bindgen-futures18.1%libloading12.7%smallvec30.7%rand_core10.8%webpki-roots10.8%ed25519-dalek15.1%paste17.5%mimalloc14.5%js-sys19.9%web-sys17.5%lru15.1%num-traits23.5%insta11.4%dashmap27.7%pretty_assertions10.8%criterion21.1%proptest12.7%

Used by these organizations

Microsoft Oxide Computer The Rust Project Fuel Labs Tauri Bytecode Alliance Quickwit probe-rs Yew Leptos Servo

50 of 166 repositories · ranked by stars · 152 pushed in the last 30 days

fuel-core★ 57kactive

chain wasm

Rust full node implementation of the Fuel v2 protocol.

libp2p quick_cache num-rational

⑂ 2.9k◎ 201

fuels-rs★ 43kmaintenance

chain

Fuel Network Rust SDK

argh octocrab trybuild

⑂ 1.4k◎ 70

spacedrive★ 39kactive

tauri ai

Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.

sea-orm-migration bip39 tauri-plugin-global-shortcut

⑂ 1.3k◎ 48

dioxus★ 39kactive

wasm db

Fullstack app framework for web, desktop, and mobile.

cargo_toml ouroboros rustversion

⑂ 1.8k◎ 737

servo★ 38kactive

db async

Servo aims to empower developers with a lightweight, high-performance alternative for embedding web technologies in applications.

ecdsa base64ct quick_cache

⑂ 3.7k◎ 3.1k

yew★ 33kactive

wasm web

Rust / Wasm framework for creating reliable and efficient web applications

base64ct actix-files rustversion

⑂ 1.5k◎ 114

leptos★ 21kactive

wasm web

Build fast web applications with Rust.

tower-layer actix-files rustversion

⑂ 887◎ 125

wasmtime★ 19kactive

wasm async

A lightweight WebAssembly runtime that is fast, secure, and standards-compliant

wit-bindgen gimli wasm-encoder

⑂ 1.8k◎ 838

rust-analyzer★ 17kactive

A Rust compiler front-end for IDEs

serde_core lsp-server borsh

⑂ 2.2k◎ 1.8k

clash-nyanpasu★ 13kactive

tauri db

Clash Nyanpasu～(∠・ω< )⌒☆

enumflags2 tauri-plugin-global-shortcut tauri-plugin-deep-link

⑂ 798◎ 127

iroh★ 12kactive

db web

IP addresses break, dial keys instead. Modular networking stack in Rust.

curve25519-dalek dirs-next hdrhistogram

⑂ 734◎ 167

quickwit★ 11kactive

db grpc

Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.

typetag quick_cache ouroboros

⑂ 578◎ 798

CubeSandbox★ 11kactive

db web

Instant, Concurrent, Secure & Lightweight Sandbox for AI Agents.

slog path-absolutize wait-timeout

⑂ 1.0k◎ 118

Pumpkin★ 11kactive

wasm async

Empowering everyone to host fast and efficient Minecraft servers.

ecdsa wit-bindgen cipher

⑂ 731◎ 336

paradedb★ 9.2kactive

Simple, Elastic-quality search for Postgres

typetag proptest-derive serde_cbor

⑂ 432◎ 196

monty★ 8.1kactive

A minimal, secure Python interpreter written in Rust for use by AI

pyo3-async-runtimes fancy-regex tungstenite

⑂ 403◎ 113

azul★ 6.1kactive

Desktop GUI Framework

cargo_toml android_logger security-framework

⑂ 225◎ 22

loro★ 6.0kactive

wasm

Make your JSON data collaborative and version-controlled with CRDTs

loom quick_cache thread_local

⑂ 164◎ 48

sxt-proof-of-sql★ 5.4kactive

wasm

Space and Time | Proof of SQL

tiny-keccak proptest-derive ark-ff

⑂ 608◎ 922

koharu★ 5.2kactive

tauri ai

ML-powered manga translator, written in Rust.

enumflags2 candle-transformers git-version

⑂ 332◎ 100

asterinas★ 4.8kactive

Asterinas aims to be a production-grade Linux alternative—memory safe, high-performance, and more.

gimli ctr spin

⑂ 354◎ 336

iggy★ 4.5kactive

wasm db

Apache Iggy: Hyper-Efficient Message Streaming at Laser Speed

simd-json derive-new actix-files

⑂ 378◎ 162

fallow★ 4.3kactive

cli

Codebase intelligence for TypeScript and JavaScript. Free static layer: unused code, duplication, circular deps, complexity hotspots, architecture boundaries. Optional paid runtime layer: hot-path review and cold-path deletion evidence from real production traffic. Rust-native, sub-second, zero-config framework support.

rquickjs fixedbitset dhat

⑂ 146◎ 4

wild★ 3.8kactive

A very fast linker for Linux

gimli thread_local wasm-encoder

⑂ 133◎ 77

lean-ctx★ 3.6kactive

ai db

LeanCTX — the Context OS for AI development. One local binary that compresses, remembers, routes, and verifies every token between your code and the model. 63 MCP tools, 10 read modes, up to 99% token savings. Works with Cursor, Claude Code, Copilot, Windsurf, Codex, Gemini.

deadpool-postgres tree-sitter-php pdf-extract

⑂ 323◎ 13

spiceai★ 3.1kactive

ai wasm

A portable accelerated SQL query, search, and LLM-inference engine, written in Rust, for data-grounded AI apps and agents.

calamine async-openai candle-transformers

⑂ 217◎ 625

probe-rs★ 2.9kactive

embedded cli

A debugging toolset and library for debugging embedded ARM and RISC-V targets on a separate host

serialport gimli linkme

⑂ 621◎ 355

moltis★ 2.8kactive

ai wasm

A secure persistent personal agent server in Rust. One binary, sandboxed execution, multi-provider LLMs, voice, memory, Telegram, WhatsApp, Discord, Teams, and MCP tools. Secure by design, runs on your hardware.

mdns-sd tree-sitter-json wit-bindgen

⑂ 333◎ 105

LibAFL★ 2.6kactive

embedded cli

Advanced Fuzzing Library - Slot your Fuzzer together in Rust! Scales across cores and machines. For Windows, Android, MacOS, Linux, no_std, ...

cargo_toml enumflags2 wide

⑂ 479◎ 112

iceoryx2★ 2.4kactive

cli

Eclipse iceoryx2™ - the zero-copy data plane with a Rust core

loom ron inventory

⑂ 178◎ 222

gloo★ 2.0kactive

wasm

A modular toolkit for building fast, reliable Web applications and libraries with Rust and WASM

futures-io gloo-timers warp

⑂ 165◎ 77

teamtype★ 1.9kactive

async

Peer-to-peer, editor-agnostic collaborative editing of local text files.

rust-ini path-clean ropey

⑂ 52◎ 114

cairo★ 1.9kactive

chain

Cairo is the first Turing-complete language for creating provable programs for general computation.

typetag bimap ark-ff

⑂ 766◎ 211

icu4x★ 1.8kactive

embedded cli

Solving i18n for client-side and resource-constrained environments.

simple_logger num-rational regex-automata

⑂ 285◎ 727

tansu★ 1.8kactive

async

Apache Kafka® compatible broker with S3, PostgreSQL, SQLite, Apache Iceberg and Delta Lake

opentelemetry-stdout rhai deadpool

⑂ 76◎ 69

rmk★ 1.7kactive

embedded

Rust keyboard firmware library with layers, macros, real-time keymap editing, wireless(BLE) and split support

cargo_toml embassy-sync document-features

⑂ 216◎ 71

rmk★ 1.7kactive

embedded wasm

A modern, easy-to-use, and feature-rich keyboard firmware written in Rust.

cargo_toml embassy-sync document-features

⑂ 217◎ 68

UniClipboard★ 1.5kactive

tauri db

Real-time clipboard sync across all your devices — local-first, peer-to-peer, and end-to-end encrypted. No account. No cloud dependency. No central server.

if-addrs x11rb tauri-plugin-global-shortcut

⑂ 69◎ 169

rumdl★ 1.4kactive

wasm cli

Fast Markdown linter and formatter written in Rust

etcetera tower-lsp fancy-regex

⑂ 75◎ 12

rosenpass★ 1.4kactive

Rosenpass is a post-quantum-secure VPN that uses WireGuard to transport the actual data.

base64ct typenum stacker

⑂ 133◎ 197

grafbase★ 1.2kmaintenance