---
id: lintro
version: "0.117.0"
license: MIT
license_treatment: permissive
maintenance: active
---

# lintro — A unified CLI tool for code formatting, linting, and quality assurance

License: permissive · Maintenance: active · Downloads: 74.0K/mo

## What it is and what it does

Lintro is a unified CLI wrapper that runs multiple code quality tools—linters, formatters, type checkers, and security scanners—across Python, JavaScript, Go, Rust, YAML, and other languages, all from a single command. Instead of maintaining separate configurations and invocations for ruff, prettier, mypy, clippy, and a dozen other tools, you run `lintro check .` or `lintro format .` and get consistent, standardized output (grid, JSON, HTML, CSV, or Markdown) across all of them.

It respects your existing tool configurations (.prettierrc, pyproject.toml, .yamllint, etc.) without requiring migration, auto-fixes issues where tools support it, and includes optional AI-powered summaries and fix suggestions (with your own API key). The package is actively maintained, requires Python 3.11+, and depends on well-established libraries like click, pydantic, rich, and httpx. External tools are detected on PATH or can be auto-installed; a Docker image is also available for isolated environments.

Use it for:

- Run all linters and formatters on a codebase in one command instead of invoking each tool separately.
- Enforce consistent code quality across multiple languages in a monorepo with a single configuration layer.
- Generate standardized, human-readable reports (grid, JSON, HTML) from all tools at once for CI/CD pipelines.
- Auto-fix formatting and linting issues across Python, JavaScript, Go, Rust, and other languages in one pass.
- Integrate pre-commit hooks or GitHub Actions workflows that check code quality without tool-specific boilerplate.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Lintro unifies code formatting, linting, and quality assurance tools across multiple languages under a single CLI, with support for Python, JavaScript, Go, Rust, YAML, and others.

Yes. Lintro is actively maintained, has low install friction (pure Python, no compiled deps), carries a permissive MIT license, and solves a real problem—unifying disparate linting and formatting tools under one interface. It's in beta (Development Status 4) and relatively young (first release 2025-08-17), so expect occasional rough edges, but the design is sound and the dependency chain is solid. Install it if you manage code quality across multiple languages or want to simplify CI/CD tool orchestration.

## Install

pip install lintro
uv add lintro
poetry add lintro

## Installing lintro

Before you install: Low friction: pure Python wheel with no compiled dependencies. Active maintenance (released 2026-08-14, first release 2025-08-17). Requires Python 3.11+. Eleven runtime dependencies are all well-established packages (click, pydantic, rich, httpx, etc.), none of which introduce significant friction.

License in practice: MIT license (permissive) means you can use, modify, and distribute lintro freely in commercial and private projects with minimal restrictions—only attribution required.

Quickstart:

pip install lintro

lintro check .
lintro format .

Requires Python 3.11 or later. External linting/formatting tools (ruff, prettier, mypy, etc.) must be installed separately or via `lintro install --profile recommended`.

Verify before relying:

- Whether the 'full' extra (bundled Python tools: ruff, black, mypy, bandit, pydoclint, yamllint) is available on PyPI or only via Homebrew.
- Whether AI features (optional, BYO API key) require additional dependencies beyond the base install.
- Performance characteristics and parallel execution overhead compared to running individual tools directly.

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 74.0K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

unified linting and formatting cli, multi-language code quality tool, centralized linter formatter, code quality aggregator, lint format check all languages, cross-language linting tool, single command linting formatting, multi-language-linting, cli-tool, code-quality

[View on SkillFed](https://skillfed.io/packages/lintro) · [View on PyPI](https://pypi.org/project/lintro/)