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With AI, Everyone is a Dev. EveryDev.ai © 2026
    1. Home
    2. Developers
    3. Astral

    Astral

    Astral's mission is to make the Python ecosystem more productive by building high-performance developer tools, starting with Ruff and uv.

    Visit Website

    At a Glance

    3Tools Listed
    4Products
    60Tool Views
    4Capabilities
    Discussions
    Brooklyn, NYHeadquarters
    2023Est.
    20Employees
    $4MRaised
    Focus Areas
    Linters & Formatters
    Code Intelligence
    AI Coding Assistants
    Command Line Assistants
    Connect
    Latest News
    Astral to join OpenAIMar 19, 2026
    Announcing ty: A fast Python type checkerDec 16, 2025
    Markets
    • Python developers
    • Data scientists
    • Software engineering teams
    • DevOps engineers

    AI Tools by Astral

    (3)
    View ty
    ty tool icon

    ty

    Python Type Checker in Rust

    Code IntelligenceLinters & FmtsAI Coding Asst.
    View uv
    uv tool icon

    uv

    Python Package Manager in Rust

    CLI AssistantsDev EnvironmentsAI Dev Libraries
    View Ruff
    Ruff tool icon

    Ruff

    Python Linter and Formatter

    Linters & FmtsCode IntelligenceAI Coding Asst.

    Discussions

    No discussions yet

    Be the first to start a discussion about Astral

    Latest News

    03/19/2026

    Astral to join OpenAI

    astral.sh
    12/16/2025

    Announcing ty: A fast Python type checker

    astral.sh
    10/15/2025

    Astral OSS Fund: One Year Later

    astral.sh
    08/20/2024

    uv: Unified Python packaging

    astral.sh

    Products & Services

    4
    Ruff
    Aug 2022

    An extremely fast Python linter and formatter, written in Rust. Designed as a drop-in replacement for Flake8, isort, and Black.

    uv
    Feb 15, 2024

    A high-performance Python package and project manager. Handles installation, resolution, project management, and Python version bootstrapping.

    ty
    Dec 16, 2025

    A high-performance Python type checker and language server, written in Rust, designed as a faster alternative to mypy and Pyright.

    Rye
    2023 (Takeover)

    A Python project management tool originally created by Armin Ronacher, now maintained by Astral as part of their unified toolchain effort.

    Market Position

    Performance-first approach using Rust; aims to simplify the fragmented Python toolchain (pip, poetry, pdm, flake8, etc.) into a single, cohesive, and fast experience.

    Leadership

    Founders

    CM

    Charlie Marsh

    Founder & CEO of Astral. Previously Staff Software Engineer at Spring Discovery (2018-2022) and Senior Engineer at Khan Academy (2014-2017). BSE in Computer Science from Princeton University.

    Executive Team

    CM

    Charlie Marsh

    Founder & CEO

    Previously Staff Software Engineer at Spring Discovery and Khan Academy.

    MK

    Michael Katz

    Head of Go-to-Market (GTM)

    Joined Astral to lead commercial business; former Founder/CEO of Flowsend and experience at Qualtrics.

    Board of Directors

    CA
    Casey Aylward
    Board Member / Investor (Accel)
    JL
    Jennifer Li
    Board Member / Investor (Andreessen Horowitz)

    Founding Story

    Charlie Marsh started Ruff as a personal project to test if Rust could significantly speed up Python linting. After it gained rapid adoption, he founded Astral to build a comprehensive suite of high-performance tools for Python.

    Business Model

    Revenue
    Pre-revenue or undisclosed (acquired by OpenAI)

    Revenue Model

    Open source tools with plans for vertically integrated paid services (Cloud/Enterprise). Now acquired by OpenAI.

    Pricing Tiers

    Open Source
    Free

    All core tools (Ruff, uv, ty) are free and open-source.

    Acquired by OpenAI (Mar 2026)

    Target Markets

    Industries & Segments
    • Python developers
    • Data scientists
    • Software engineering teams
    • DevOps engineers
    Use Cases
    • Python development
    • CI/CD pipelines
    • Package management
    • Linting and formatting
    Notable Customers
    • Amazon
    • Hugging Face
    • LangChain
    • Microsoft

    Quick Facts

    Headquarters
    Brooklyn, NY
    Founded
    2023
    Entity Type
    Inc.
    Employees
    20
    Total Funding
    $4M+ (Seed plus unannounced A and B rounds)
    Investors
    Accel, Andreessen Horowitz
    Office Locations
    Brooklyn
    Remote

    Funding History

    Seed$4,000,000
    Apr 18, 2023
    Accel
    Series AUnannounced
    Unknown
    Accel
    Series BUnannounced
    Unknown
    Andreessen Horowitz

    History & Milestones

    Mar 19, 2026

    Acquisition by OpenAI to join the Codex team.

    Dec 16, 2025

    Release of ty, a high-performance Python type checker and language server.

    Feb 15, 2024

    Release of uv, an extremely fast Python package installer and resolver.

    Aug 20, 2024

    uv 0.3.0 major update, expanding into a unified Python project manager.

    Apr 18, 2023

    Public launch of Astral with $4M seed funding led by Accel.

    Key Capabilities

    4
    Extreme performance (Rust-based)
    Unified toolchain
    Drop-in compatibility with legacy tools
    Open-source core

    Integrations & Partnerships

    Platform Integrations

    • GitHub Actions
    • VS Code
    • PyCharm
    • Maturin
    • PyPI

    Key Partnerships

    OpenAI (Parent company)
    Maintainers of major open-source projects

    Connect

    Website
    astral.sh
    GitHub
    astral-sh
    X / Twitter
    astral_sh

    AI Topics

    6

    Astral focuses on these topics:

    Linters & Formatters(2)
    Code Intelligence(2)
    AI Coding Assistants(2)
    Command Line Assistants(1)
    Development Environments(1)
    AI Development Libraries(1)
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