cddl
Parser for the Concise data definition language (CDDL)
opensearch
Official OpenSearch Rust client
bat
A cat(1) clone with wings
looop
A tiny, portable, Kubernetes-shaped control loop for your work
uu_cat
cat ~ (uutils) concatenate and display input
mdcat
cat for markdown: Show markdown documents in terminals
ion-cli
Command line tool for working with the Ion data format
crc-catalog
Catalog of CRC algorithms (generated from http://reveng.sourceforge.net/crc-catalogue) expressed as simple Rust structs
tidy-viewer
Head, but for CSV files and with color
syncat
Syntax aware cat
cat-dev
interacting with the CAT-DEV hardware units distributed by Nintendo (i.e. a type of Wii-U DevKits).
cljrs-stdlib
Built-in standard library namespaces for clojurust (clojure.string, clojure.set, clojure.test, …)
jnv
JSON navigator and interactive filter leveraging jq
tossicat
입력된 단어에 맞게 같이 입력된 토시(조사)를 적절하게 변환하는 라이브러리
rskim
The most intelligent context optimization engine for coding agents. Code-aware AST parsing, command rewriting, output compression.
smartcat
Putting a brain behind
cat. CLI interface to bring language models in the Unix ecosystem 🐈⬛
dota2cat
An updated fork of dotacat (which is like lolcat, but fast)
cddl-cat
Parse CDDL schemas and validate CBOR or JSON serialized data
vmt
The Very Opinionated Mail Interaction Toolkit
oxiarc-bzip2
Pure Rust BZip2 compression/decompression for OxiArc
mlar
A wrapper around the MLA library for common use cases
oxideav-iff
Pure-Rust EA IFF 85 container support (8SVX/ILBM/ANIM Amiga forms + AIFF/AIFC Apple audio) for oxideav
twincatads-rs
Rust wrapper for TwinCAT ADS library provided with Beckhoff TwinCAT
alloc_cat
allocator for small-to-tiny Wasm projects in rust
axonml-tensor
N-dimensional tensor operations for the Axonml ML framework
meow-cli
Print ASCII cats to your terminal
twas
A text substitution application for using random look-up tables to generate text in a manner similar to the Mad Libs game
zcat
netcat-inspired utility for zenoh
reposix-quality
Quality Gates dimension verifier suite for reposix -- doc-alignment + walk + run + verify
dircat
High-performance Rust utility that concatenates and displays directory contents, similar to the C++ DirCat
teacat
A modern document languge for web pages
tinysandbox
Ultra-minimal Linux-like sandbox for AI agents: shell, coreutils, VFS, and a Wasmtime-hosted JS runtime in one crate
aki-xcat
concatenate files that are plain, gzip, xz and zstd
cansi
Catergorise ANSI - ANSI escape code parser and categoriser
goldilocks-ntt-hdl
Field-generic NTT pipeline in hdl-cat (Goldilocks + BabyBear) with comp-cat-rs categorical structure
ambassador
Trait implementation delegation via procedural macros
rlnc-cat-rs
Random Linear Network Coding over GF(2^8), built on comp-cat-rs
brainpurr
interpreter
termdown
Render Markdown with large-font headings in the terminal via Kitty graphics protocol
configcat
SDK
mdcat-ng
cat for markdown: show markdown documents in terminals
cat-cli
Concatenate and send files to standard output
ext4-cli
Read ext4 filesystems from image files and block devices
nagisa
Rust 的 QQ 机器人框架,支持 OneBot v11 和 Milky
scfs
A convenient splitting and concatenating filesystem
reposix-remote
git-remote-reposix binary: stateless-connect + export protocol helper for reposix backends
ads_client
An asynchronous, non-blocking ADS client
world_rules
世界规则库 - 收集各种游戏、体育、社交、科学、法律规则
comp-cat-rs
Computational category theory in Rust: all constructions as Kan extensions
rmeow
A command line tool that aims to be a replacement for cat/bat with better highlighting
common-access-token
Common Access Token (CAT) specification
devcat
A micro-version control system for your AI development loop
reposix-confluence
Confluence Cloud BackendConnector implementation for reposix
catboost-rust
Rust bindings for CatBoost, a gradient boosting library for machine learning. Downloads CatBoost binaries at runtime for cross-platform compatibility.
cjseq
Create+process+modify+convert CityJSONSeq
taktora-ethercat-netcfg
Parser and in-memory IR for the EtherCAT network-config YAML (build-host codegen toolchain)
automerge-cat
CRDTs as categorical colimits, built on comp-cat-rs
mathcat
Math Capable Assistive Technology ('Speech and braille from MathML')
spottedcat
game engine
plonkish-cat
PLONKish circuit system built on comp-cat-rs: circuits as morphisms in a free category
reposix-cache
On-disk bare-repo cache built from REST responses; lazy blob materialization for git partial-clone
rs-script
create and edit single-file Rust scripts
zipcrawl
Explore and stream ZIP archives without even extracting them
mls-rs-crypto-hpke
HPKE implementation based on mls-rs-crypto-traits used by mls-rs
reposix-sim
In-process axum-based simulator of an issue-tracker REST API for reposix testing
rusty-cat
Async HTTP client for resumable file upload and download
web-api-cat
Bindings between boa-cat (JS engine) and the DOM (html-cat tree) plus fetch (net-cat). v0.7.17 adds the
:emptyand:rootstructural pseudo-classes plus a semantic fix: `document…
batty-cat
A cat clone with syntax highlighting, git integration, and Rhai support
roboplc-io-iec60870-5
RoboPLC I/O connector for TwinCAT/ADS
catopy
Copy file content to clipboard safely with size guards
reposix-jira
JIRA Cloud BackendConnector implementation for reposix
purrgress
A lightweight, async-ready hierarchical stage machine tailored for P2P networks and game state trees
tiller-sync
downloading, uploading and manipulating Tiller Google sheet data using CLI or MCP
see-cat
A cute cat(1)
vm-cat
Provable stack-machine VM built on machine-cat
ads
Client for the Beckhoff Automation Device Specification protocol for PLCs
cat-dev-serial
interacting with the serial port of a CAT-DEV hardware unit distributed by Nintendo (i.e. a type of Wii-U DevKits).
cross-stream
An event stream store for personal, local-first use, specializing in event sourcing
hdl-cat
Umbrella crate re-exporting the hdl-cat workspace
prx
Praxis — agent-native Unix tools. Single binary replacing grep, cat, find, sed, diff for AI coding agents.
pluck-cli
pluck CLI — symbol-aware code reading for terminals and non-MCP environments. Drop-in replacement for cat/grep with a raw fallback that preserves their output byte-for-byte.
reposix-core
Shared types for reposix: BackendConnector trait, Record/Project/RemoteSpec, Tainted<T>
paip
like cat but through llm
litcat
A CLI tool for viewing patches with colors
reposix-github
GitHub Issues BackendConnector implementation for reposix
openapi-types
Types for OpenAPI
lolrust
A transpiler from .meow (lolcat Rust) to valid Rust. i can haz rust?
zkfs
A Zookeeper command-line tool with Linux-like file system commands
sts-cat
GitHub STS, aims to be easy-self-hosting and cloud-agnostic
cato
A file catenation tool written in Rust
ecma-runtime-cat
ECMAScript runtime: native built-ins (console, Math, JSON, parseInt, isNaN, Promise, Object, Array, Error, …) that the boa-cat engine exposes to scripts. v0.3.5 adds the seven standard error constructors
Error…
libp2p-cat-udp
UDP datagram transport for libp2p-cat-rs, exposed as an Io-shaped linear transport
ifc-lite-core-cat
High-performance IFC/STEP parser for building data, built on comp-cat-rs
stash-cli
A local store for pipeline output and ad hoc file snapshots
ecma-parse-cat
ECMAScript parser consuming ecma-lex-cat tokens and producing ecma-syntax-cat Program ASTs. Comprehensive ES2024 surface (classes, modules, destructuring, async/await, optional chaining…
machine-cat
Generic AIR chip framework built on proof-cat-core
supdock
What's Up, Doc(ker)? A slightly more visual way to interact with the docker daemon
pluck-mcp
MCP server (pluckd) for pluck — exposes the read/search/grep/symbol/peek/expand tools over stdio for AI coding agents like Claude Code, Cursor, and Codex
catlock
Defend keyboard against your cat
haru-cat
A tiny cat living in your terminal
reposix-cli
reposix CLI orchestrator: init, sim, list, refresh, spaces
oli
OpenDAL Command Line Interface
s3sh
Interactive S3 shell with Unix-like commands and archive navigation
apollo-encoder
serialise GraphQL Schemas
cat_translator
encodes text into cat noises code and vice-versa
boa-cat
Tree-walking ECMAScript interpreter built on ecma-syntax-cat. v0.7.2 lands three integration tests pinning down the existing
new SomeNativeFn(args)dispatch path:expression::construct…
aush
Actually Usable Shell — a modern Unix shell written in Rust
nisshi-cli
Tansu CLI
templito
A template language library that allows multiple parameters to pass between templates
wdi
interacting with the Windows Driver Installer subsystem
kitcat
A Git-like version control system written in Rust with support for branching, merging, and packfiles
dsp-cat
Composable DSP signal processing pipeline with hdl-cat and comp-cat-rs categorical structure
rig-cat
LLM agent framework built on comp-cat-rs: typed effects, no async, categorical foundations
nisshi-cat
Fetch or produce (with validation when backed by a schema) messages to a topic
termicat
A fun ASCII cat art display that shows random cats every 15-35 seconds
tree-sitter-iec61131-3-st
IEC 61131-3 Structured Text grammar for tree-sitter (standard, dialect-extensible)
binsider
Analyze ELF binaries like a boss
config2args
A CLI tool which converts config file into GNU option style string
plonky-cat-reduce
Core claim-reduction coalgebra unifying FRI and sumcheck
fencecat
Walkdir cat with markdown fenced code output
animal-age
CLI tool to convert animal ages to human years and show lifespan progress
avz
Blistering-fast Avro CLI tool — a modern replacement for avro-tools and fastavro
cat-dev-telnet
interacting with the telnet service on a CAT-DEV (wii-u devkit) host bridge, like a MION
hilang
A small programming language
proof-cat
PLONKish bridge to sumcheck proving (built on proof-cat-core)
net-cat
Minimal hand-rolled HTTP/1.1 client over std::net::TcpStream. v0.3.0 adds chunked-transfer decoding (
Transfer-Encoding: chunkedresponses now yield the correct decoded body) and…
stark-cat
STARK proof system (AIR + FRI low-degree test) built on proof-cat-core and field-cat
pcloud-cat-core
Point cloud processing on comp-cat-rs: ICP registration, normal estimation, anomaly detection
cerf
A shell
tauri-runtime-servocat
Servo-replacement runtime for Tauri: wires html-cat, css-cat, dom-cat, layout-cat, paint-cat, net-cat, boa-cat, ecma-runtime-cat, and web-api-cat into a single rendering + scripting pipeline…
tmdp
Terminal Markdown Preview — render markdown with Mermaid diagrams, math equations, and syntax highlighting in your terminal
ascii-agents
Terminal pixel-art office for AI coding agents
gesha-rust-types
Rust types for Gesha proejct
mat-o-viewer
A modern terminal file viewer combining cat, less, and grep with syntax highlighting and markdown rendering
xny
search files
dpp-tool
CLI to explore Apple DMG disk images: DMG → HFS+/APFS → PKG → PBZX → files
heretek
GDB TUI Dashboard for the understanding of vast knowledge
browser-cat
Pipe text or HTML to your browser from the command line — a Rust port of bcat
younix
A collection of minimalist Unix command-line tools made in Rust
rhai-safe-io
Rhai bindings for safe filesystem I/O access in REX scripts
omnifs-provider-arxiv
omnifs provider for browsing arXiv papers
cat-token
CTA-5007-B Common Access Token specification
ecma-syntax-cat
ECMAScript abstract syntax tree as comp-cat-rs-idiomatic Rust types. ESTree-shaped, ES2024-complete, no panics, no Rc, no interior mutability. Foundation crate for boa-cat and related downstream tooling.
plonky-cat-field
Field abstractions for plonky-cat: BabyBear, Goldilocks, Mersenne31
cat-ascii-faces
generate random ASCII cat faces + binary to print them out
gf-core
Rust runtime for Grammatical Framework
jsonlogic-rs
jsonlogic (jsonlogic.com) implemented in Rust
lettre-cat
Email sending built on comp-cat-rs: composable, resource-safe, lazy effects over lettre
csv-cat
CSV processing built on comp-cat-rs: streaming, resource-safe, composable effects
lambda-async-cat
Lambda calculus with records, prototype chains, ref cells, mark-sweep GC, throw/try/catch, and cooperative promise-based scheduling. Pure-functional pending-task queue threaded through…
pulldown-cmark-mdcat
Render pulldown-cmark events to TTY
vdisk
Virtual disk image tool for creating, partitioning, formatting, and manipulating images
ecma-lex-cat
ECMAScript lexer producing Spanned<Token> values for ecma-syntax-cat. ES2024 token surface (keywords, punctuators, all numeric forms, template literals with interpolation, regex literals with last-token disambiguation…
hadris-udf-cli
CLI utility for Universal Disk Format image operations
prani
— Creature and animal vocal synthesis: species-specific voice models, call patterns, non-human vocal tracts
csa-rhdl
Carry-save adder compressor trees composed via comp-cat-rs, with hdl-cat backend
ifc-qto-cat
Data-driven quantity takeoffs from IFC models, built on comp-cat-rs
wasibox
BusyBox-like umbrella crate for WASI utilities and SL animation
kittysay
cowsay, but with a cute kitty :3
lambda-throw-cat
Lambda calculus with records, prototype chains, ref cells, GC, and non-local control flow via throw/try/catch. Outcome::Normal/Thrown is threaded purely-functionally through every reduction…
msu-256
256-bit Ozturk Modular Squaring Unit on hdl-cat and comp-cat-rs
hdl-cat-verilog
Verilog AST + emitter for hdl-cat IR graphs
plonky-cat-poly
Univariate and multilinear polynomial functors
swarm-scout
scout — a light, no-node client for reading content from Swarm: point at a gateway (or any Bee) and cat / get / bytes by reference
prezzy
Make any CLI output beautiful. Zero config. Just pipe.
commucat-proto
Framing and codec layer for the CommuCat CCP-1 protocol
lcalc-cat
Limiting dilution analysis with maximum likelihood estimation, built on comp-cat-rs
nyoom-json
A json serializer that goes nyoom
dom-cat
Persistent DOM model: arena-backed Node tree with mutation API and CSS-selector matching. Consumes html-cat trees; selectors via css-cat. No mut, no Rc/Arc, no interior mutability, no panics…
bitmask-logger
Lightweight debug logger with bitmask-based categories for real-time applications
plonky-cat-hash
Arithmetization-friendly and generic hash functions
chess-cat
CLI to visualize chess boards in your terminal
qvcm
Register-based bytecode VM with quantum computing functionality
lambda-ref-cat
Lambda calculus with mutable reference cells and a pure-functional mark-sweep garbage collector, built on comp-cat-rs. Spike 2 of a web-engine reformulation targeting Tauri.
libasterix
parsing and encoding ASTERIX (All Purpose Structured Eurocontrol Surveillance Information Exchange) messages
om-context
LLM context tool that scores project files by importance
html-cat
HTML5 parser: tokenizer + tree builder producing a Document tree of Element/Text/Comment nodes. No mut, no Rc/Arc, no interior mutability, no panics, exhaustive matches. First sub-crate…
plonky-cat-merkle
Merkle tree over plonky-cat-hash
css-cat
CSS parser: tokenizer + parser producing a Stylesheet of Rules, Selectors, Declarations, and AtRules. No mut, no Rc/Arc, no interior mutability, no panics, exhaustive matches. Second…
mtp-mount
Mount MTP devices as local filesystems via FUSE
hdl-cat-circuit
Circuit as symmetric monoidal category built on comp-cat-rs and hdl-cat-ir
wordchipper-cli
A command-line interface for the Wordchipper tokenizer library
tansu-cat
Fetch or produce (with validation when backed by a schema) messages to a topic
nyanko
Pure stateless library for handling game quirks, animations, and data from The Battle Cats
plonky-cat-sumcheck
Sumcheck as a ReductionFunctor implementation
plonky-cat-fri
FRI as a ReductionFunctor implementation
plonky-cat-transcript
Fiat-Shamir transcript as a natural transformation
hdl-cat-sim
Stream-based simulator for hdl-cat Sync machines
car-utils
ipfs car file reader writer and utils CLI
miniximg-shell
Interactive REPL for inspecting and editing Minix v1 filesystem images
plonky-cat-fft
FFT/NTT including four-step Bailey algorithm
lambda-cat
Untyped lambda calculus interpreter built on comp-cat-rs. Lex, parse, and tree-walk evaluation expressed as Io effects with static dispatch and no panics.
pcloud-cat-viewer
WASM-based 3-D point cloud viewer using WebGL2
libp2p-cat-host
Connection-managing host for libp2p-cat-rs: drives Noise XX over UDP and routes plaintext datagrams
karpal-higher
2-categories, enriched categories, and bicategories for the Industrial Algebra ecosystem
plonky-cat-basefold
BaseFold as Interleave<BaseFoldAdapter>
plonky-cat-plonk
PLONK arithmetization with custom gates
kt-dog
A modern, fast, cross-platform, alternative to cat
http-srv
Http Server
dora-cat
Dataflow-oriented robotic architecture built on comp-cat-rs and tarpc-cat
layout-cat
Box-model layout: cascade + block layout over a dom-cat tree using css-cat stylesheets. Produces a LayoutBox tree with positions and dimensions. No mut, no Rc/Arc, no interior mutability…
field-cat
Finite field algebra shared across plonkish-cat, proof-cat, and stark-cat
ifc-lite-geometry-cat
Geometry processing and mesh generation for IFC models, built on comp-cat-rs
petfacts
CLI program to print out cat and dog facts to the console
infinity-cat
An example crate for clt 2026
libp2p-cat-kad
Kademlia DHT routing table and (eventually) RPCs for libp2p-cat-rs
cat-wgpu
Categorical host layer for wgpu compute: adapter, device, buffers, shaders, and dispatches expressed as comp-cat-rs Io/Resource combinators
tarpc-cat
RPC framework built on comp-cat-rs: typed effects, no async, categorical foundations
hdl-cat-kind
Hardware-describable-type trait (Hw) and type descriptors for hdl-cat
hdl-cat-bits
Bit-precise unsigned and signed integer newtypes for hdl-cat
xnv
XML navigator and interactive filter with XPath-like queries
hdl-cat-error
Shared Error enum for hdl-cat
x-pipe-rs
Composable recommendation/feed pipeline framework built on comp-cat-rs
arrs-cli
Command-line tool for inspecting Lance and other Arrow-based datasets
libp2p-cat-identity
Ed25519 ↔ X25519 binding via signed-Noise-extension for libp2p-cat-rs
wasi-shell
A modular WASI-compatible shell with piping and redirection
hdl-cat-signal
Clock-domain-indexed signal type over comp-cat-rs Stream
spi-i2c-hdl-cat
SPI and I2C controllers using hdl-cat categorical hardware description
hdl-cat-std
Standard component library for hdl-cat
repeatmasker-rs
Fast Rust postprocessing and masking for RepeatMasker .out/.cat annotations
ycat
The cat command of the Younix application
mul-cat
Multiplier built on comp-cat-rs and hdl-cat: Booth encoding and carry-save tree reduction as free category morphisms
poe_data_tools-cli
A CLI for working with Path of Exile game data
ifc-lite-wasm-cat
WebAssembly bindings for IFC-Lite, built on comp-cat-rs
pic-cat
CAT (Causal Authority Transition) for PIC Protocol
ifc-qto-geometry-cat
Geometry-adjusted quantity takeoffs from IFC models, built on comp-cat-rs
minroot-cat
Categorical pipeline abstractions for MinRoot VDF hardware
kafcat
cat but with kafka
ratiscat
rat is cat reimplemented in rust with some new features
cat-dir
Bundle directory tree into one plain-text file. (like tar, but you can
catit)
autosurgeon-cat
Derive-driven mapping between Rust types and automerge-cat documents
cpa-cat
Carry-propagate adder built on comp-cat-rs and hdl-cat: parallel prefix networks as free category morphisms
ricat
A Rust-Based implemenation of classic UNIX
catcommand
axi-dma-hdl-cat
AXI4-Lite bus bridge and DMA engine in hdl-cat with comp-cat-rs categorical composition
tabulate
aligning data in columns
tpt
Pure Rust implementation of the Unix concatenate (cat), word-count (wc) and echo command
autocat
A command-line tool for transparent decompression of various formats to stdout
gitcat
A cute wrapper around the git CLI
soralog
A command-line tool for exploring WebRTC SFU Sora log files
httpcat
HTTP client that shows cat images based on status codes
cat-in-box
Use Cat instead of Box
http-catlog
Monitor logs and display cat images when HTTP errors are detected
nbcat
A command-line tool that displays .ipynb file like
catcommand
libp2p-cat-rpc
RPC integration for libp2p-cat-rs: tarpc-cat over UDP+Noise+Identity via a HostTransport adapter
prat
PRetty PRint PRometheus cAT
supercat
A syntax highlighting alternative to cat
ratcat
cat clone
imgcatr
Cat for images
kitget
Display and customize cat images in your terminal 😼
pcat
A dead-lock free parallel cat implementation
cat-fax
Like Cowsay, but with (mostly) factually accurate cat facts!
windows-cat
unix cat command for windows
fetch-catnip
fetch displaying system information and a cute cat
c-cli
cat and ls combined into one command
proudcat
cat + :rainbow:
catalist
Cat, but for lists
rcatt
cat command
isla-cat
Isla is a symbolic execution engine for Sail instruction set architecture specifications. This crate implements a SMT translator for subset of the cat language used by herd7 to specify relaxed memory models.
khat
A cat clone, nothing more nothing less
orange-cat
A cat clone which colorizes its output
catprinter
control ur cat printer using this module (MXW01 only :3)
cat-q
testing and scoring
look_at_that
ls + cat == lk
cat-once
Tool used to cat files in tight disc conditions saving disk space
Try searching with DuckDuckGo or on crates.io.