---
id: typer
version: "0.27.1"
license: MIT
license_treatment: permissive
maintenance: active
---

# typer — Typer, build great CLIs. Easy to code. Based on Python type hints.

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install typer
uv add typer
poetry add typer

## Description

<p align="center">
  <a href="https://typer.tiangolo.com"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg#only-light" alt="Typer"></a>

</p>
<p align="center">
    <em>Typer, build great CLIs. Easy to code. Based on Python type hints.</em>
</p>
<p align="center">
<a href="https://github.com/fastapi/typer/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster">
    <img src="https://github.com/fastapi/typer/actions/workflows/test.yml/badge.svg?event=push&branch=master" alt="Test">
</a>
<a href="https://coverage-badge.samuelcolvin.workers.dev/redirect/fastapi/typer">
    <img src="https://coverage-badge.samuelcolvin.workers.dev/fastapi/typer.svg" alt="Coverage">
<a href="https://pypi.org/project/typer">
    <img src="https://img.shields.io/pypi/v/typer?color=%2334D058&label=pypi%20package" alt="Package version">
</a>
</p>

---

**Documentation**: [https://typer.tiangolo.com](https://typer.tiangolo.com)

**Source Code**: [https://github.com/fastapi/typer](https://github.com/fastapi/typer)

---

Typer is a library for building <abbr title="command line interface, programs executed from a terminal">CLI</abbr> applications that users will **love...

## AI interpretation — verify before relying

Typer builds command-line interfaces from Python type hints, automatically generating argument parsing, help text, and shell completion with minimal boilerplate.

Verdict: Typer is actively maintained with no known vulnerabilities, permissive MIT licensing, and low install friction. It scales from trivial single-function CLIs to complex command trees while leveraging Python's type system for automatic validation and documentation.

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