Pyrefly Alternatives

Pyrefly is described as 'Type checker and language server for Python, which provides lightning-fast type checking along with IDE features such as code navigation, semantic highlighting, and code completion. It is available as a command-line tool and a VSCode extension' and is an app in the development category. There are more than 10 alternatives to Pyrefly for a variety of platforms, including Mac, Windows, Linux, Python and SaaS apps. The best Pyrefly alternative is Codacy. It's not free, so if you're looking for a free alternative, you could try Codacy or Ruff. Other great apps like Pyrefly are Coala, PyChecker, PyFlakes and PEP8.

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Alternatives list

  1. Codacy icon

    Codacy

     25 likes
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    Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.

    49 Codacy alternatives

    Cost / License

    • Free Personal
    • Open Source

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
    Codacy screenshot 1
     

    • Codacy is the most popular Web-based, SaaS & Self-Hosted alternative to Pyrefly.

    • Codacy is the most popular Open Source & free alternative to Pyrefly.

    • Codacy is Free Personal and Open SourcePyrefly is Free and Open Source
  2. Ruff icon

    Ruff

     1 like
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    An extremely fast Python linter, written in Rust.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Python
    Ruff screenshot 1
     

    • Ruff is the most popular Windows, Mac & Linux alternative to Pyrefly.

    • Ruff is Free and Open SourcePyrefly is also Free and Open Source

  4. PyLint

     5 likes
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    A Python source code analyzer which looks for programming errors, it helps to enforce a coding standard and to sniff for some code.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
    PyLint screenshot 1
     
  5. Coala icon

    Coala

     3 likes
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    Coala provides a unified command-line interface for linting and fixing all your code, regardless of the programming languages you use. https://coala.io/.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
     

  6. PyChecker

     1 like
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    PyChecker is a tool for finding bugs in Python source code. It finds problems that are typically caught by a compiler for less dynamic languages, like C and C++ and is similar to lint. Because of the dynamic nature of python, some warnings may be incorrect; however, spurious...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
     

  7. PyFlakes

     1 like
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    A simple program which checks Python source files for errors.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
     

  9. PEP8

     1 like
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    pep8 is a tool to check your Python code against some of the style conventions in PEP 8.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
     
  10. PyCodeQual icon

    PyCodeQual

     2 likes
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    PyCodeQual gives you insights into complexity and bug risks with high accuracy because your code is analyzed with its dependencies installed.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Platforms

    • Software as a Service (SaaS)
    PyCodeQual screenshot 1
     

  11. flake8

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    Flake8 is a wrapper around PyFlakes, pep8 and Ned Batchelder's McCabe script and displays the warnings in a per-file, merged output.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
     
  12. Pyright icon

    Pyright

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    Static type checker for Python.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
     

  13. PEP 257

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    Python PEP 257 docstring style checker.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
     
  14. Mypy icon

    Mypy

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    Mypy is an optional static type checker for Python that aims to combine the benefits of dynamic (or "duck") typing and static typing. Mypy combines the expressive power and convenience of Python with a powerful type system and compile-time type checking.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    Mypy screenshot 1
     
12 of 15 Pyrefly alternatives