
SonarQube
CodeClimate
CodeFactor.io
Snyk
ESLint
Coveralls
SensioLabs Insight
Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
PyLint
PyFlakes
pre-commit by Yelp
mypy
PEP8
CppDepend
ruff
A wrapper around Python tools to check the style and quality of Python code.

Which is more popular?
flake8 might be a bit more popular than Codacy. We know about 5 links to it since March 2021 and only 4 links to Codacy.
Website, pricing, platforms and company facts side by side.
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flake8
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| Website | codacy.com | gitlab.com |
| Pricing | — | |
| Company | Startup from Portugal · 1 - 9 employees · 2012 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

Codacy automates code reviews and monitors code quality on every commit and pull request reporting back the impact of every commit or pull request, issues concerning code style, best practices, security, and many others. It monitors changes in code coverage, code duplication and code complexity....
No description of flake8 yet.
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Using Codacy for automated code reviews
More videos
Linters and fixers: never worry about code formatting again (Vim + Ale + Flake8 & Black for Python)
More videos
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Codacy and flake8. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

Each of these tools offers unique advantages that make them compelling alternatives to SonarQube, depending on organizational goals, budgets, and technology stacks. Codeant.ai and Codacy provide user-friendly...
Codacy is a popular code analysis and quality tool that helps you deliver better software. It continuously reviews your code and monitors its quality from the beginning.
Secondly, while SonarQube offers security analysis, Codacy provides a more holistic approach to security, including features like supply chain security and secret detection out of the box. Added to this are Codacy’s...
We have no reviews of flake8 yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.

I'm trying to use Codacy to review my code. One of the issues is regarding the use of the "setcookie" function. Source: almost 5 years ago
Does anyone have an example on how to get this conversion done on github actions where I can convert the *.coverage file into a *.xml file for uploading to codacy.com. Source: about 5 years ago
Online analysisFinally, if you want a simple way to analyze your code without having to manually configure everything locally, you can use an online code review service such as Codacy (shameless plug here). We already integrate some of... - Source: dev.to / over 5 years ago
Repos: - repo: https://github.com/pre-commit/pre-commit-hooks rev: v4.3.0 hooks: - id: trailing-whitespace - id: check-merge-conflict - id: check-yaml args: [--unsafe] - id: check-json -... - Source: dev.to / almost 4 years ago
I just ran `pre-commit autoupdate`. It's asking for a username for https://gitlab.com/pycqa/flake8. :-(. Source: almost 4 years ago
Flake8 plugin for a smart line length validation. Source: about 4 years ago
When comparing Codacy and flake8, you can also consider the following products.

SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
Compare SonarQube to Codacy or flake8:
Pylint is a Python source code analyzer which looks for programming errors.
Compare PyLint to Codacy or flake8:

Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.
Compare CodeClimate to Codacy or flake8:

A simple program which checks Python source files for errors.
Compare PyFlakes to Codacy or flake8:

Automated Code Review for GitHub & BitBucket
Compare CodeFactor.io to Codacy or flake8:

A framework for managing and maintaining multi-language pre-commit hooks
Compare pre-commit by Yelp to Codacy or flake8: