Go98Exceptionalhealth index

urfave/cliA declarative, simple, fast, and fun package for building command line tools in Go
Go★ 24.2KSep 16, 2026
crates.io98Exceptionalhealth index
Rust★ 21K↓ 762.8K/moSep 16, 2026
crates.io95Exceptionalhealth index

rust-cli/config-rs⚙️ Layered configuration system for Rust applications (with strong support for 12-factor applications).
Rust★ 3,212↓ 6.2M/moSep 23, 2026
PyPI · npm94Exceptionalhealth index

frenck/probatio⚖️ Probatio. A modern, maintained data validation library for Python. Clean-room, MIT-licensed, drop-in reimplementation of voluptuous.
Python★ 21↓ 199.8K/moOct 21, 2026
crates.io94Exceptionalhealth index
Rust★ 1,074↓ 349M/moSep 19, 2026
PyPI93Exceptionalhealth index

mauvilsa/jsonargparseMinimal effort CLIs derived from type hints and parse from command line, config files and environment variables
Python★ 429↓ 4M/moAug 25, 2026
PyPI · crates.io93Exceptionalhealth index
Rust · Python★ 85↓ 1.3M/moSep 12, 2026
PyPI · crates.io · npm91Excellenthealth index
Rust★ 1,113↓ 251.1K/moSep 12, 2026
npm · PyPI90Excellenthealth index

bvisible/mcp-ssh-managerMCP SSH Server: 37 tools for remote SSH management | Claude Code & OpenAI Codex | DevOps automation, backups, database operations, health monitoring
JavaScript · Shell★ 476↓ 4,659/moSep 9, 2026
PyPI89Excellenthealth index
Python★ 209↓ 346.7K/moSep 12, 2026
PyPI88Excellenthealth index

msgspec/msgspecA fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML
Python · C★ 4,063Aug 27, 2026
PyPI86Excellenthealth index
Python★ 935↓ 37M/moAug 27, 2026
crates.io86Excellenthealth index
Rust★ 44↓ 31.1K/moSep 9, 2026
PyPI86Excellenthealth index

fabiocaccamo/python-benedict:blue_book: dict subclass with keylist/keypath support, built-in I/O operations (base64, csv, html, ini, json, pickle, plist, query-string, toml, xls, xml, yaml), s3 support and many utilities.
Python · HTML★ 1,607↓ 1.3M/moSep 17, 2026
Go86Excellenthealth index

knadh/koanfSimple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.
Go★ 4,218Oct 21, 2026
npm86Excellenthealth index
TypeScript★ 98↓ 627.5K/moSep 15, 2026
crates.io86Excellenthealth index
Rust★ 9↓ 21.5K/moOct 20, 2026

stephenberry/glazeExtremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF
C++★ 3,014Sep 13, 2026
npm84Excellenthealth index
TypeScript · JavaScript★ 1↓ 2,953/moSep 10, 2026
npm84Excellenthealth index
TypeScript★ 36↓ 1.9M/moSep 17, 2026
crates.io83Excellenthealth index

Kirky-X/confersZero-boilerplate type-safe Rust configuration library — #[derive(Config)] with TOML/JSON/YAML/INI/.env sources, priority-chain merge, hot reload with canary rollout, field encryption, remote backends (etcd/Consul/Nacos/K8s), and diagnostic CLI
Rust★ 0↓ 4,935/moOct 21, 2026
Go83Excellenthealth index
Go★ 1,979Sep 10, 2026
npm81Excellenthealth index
JavaScript★ 17↓ 18.2K/moSep 23, 2026
crates.io81Excellenthealth index

sebastienrousseau/metadata-genTyped, audited, zero-allocation-bound frontmatter parser for Rust — YAML/TOML/JSON extraction, SEO meta tag emission, supply-chain attested (cargo-vet, SBOM, RUSTSEC). WASI-bound roadmap.
Rust★ 2↓ 2,271/moSep 18, 2026
crates.io81Excellenthealth index

x52dev/confikComposable multi-source configuration for Rust applications.
Rust★ 46↓ 51K/moOct 6, 2026
PyPI · crates.io · npm +180Excellenthealth index

ISON-format/ison🔥 Token-efficient JSON alternative for LLMs & agentic AI — same data, fewer tokens. Python · JS/TS · Rust · Go · C++
Python · Rust★ 127↓ 1,198/moSep 30, 2026
crates.io · npm80Excellenthealth index

YuniqueUnic/schemauischemaui turns JSON Schema documents into fully interactive terminal UIs powered by ratatui, crossterm, and jsonschema. The library parses rich schemas (nested sections, $ref, arrays, key/value maps, pattern properties…) into a navigable form tree, renders it as a keyboard-first editor, and validates the result after every edit
Rust · TypeScript★ 95↓ 18.4K/moOct 20, 2026
Go80Excellenthealth index

ddddddO/gtreeEasily output ASCII tree from Go program or Markdown unordered list . There's also CLI tool that can output tree from JSON, YAML, or TOML! It's called *xtree*.
Go★ 361Sep 14, 2026
PyPI · crates.io80Excellenthealth index
Python · Rust★ 409↓ 1.2M/moOct 12, 2026
npm80Excellenthealth index

sunnyadn/js-tomlA TOML parser for JavaScript. Fully compliant with TOML 1.1.0. Used by MongoDB, LINE, and more. Supports Node.js, browsers, and Bun⚡️!
TypeScript★ 68↓ 124.2K/moSep 15, 2026