Ruff lints Python with dramatic speed. Rust-powered Python linting-Python tools reimagined for performance. The speed is transformative. The compatibility is growing. The adoption is accelerating. Python projects wanting faster linting adopt Ruff for performance improvement.

Available on: Web

Louis Corneloup Updated May 26, 2026 · how we evaluate Source docs.astral.sh ↗

Ratings Across the Web

4.6 (5,562 reviews)

Ruff holds an aggregate rating of 4.6 out of 5 from 5,562 reviews across G2, last checked July 29, 2026.

G2 5,562 reviews

4.6/5

Ratings aggregated from independent review platforms. Learn more

Key Features

Python linter
Extremely fast
Rust-based
Auto-fix
Flake8 compatible
Open source

Pricing Plans

Pricing checked Sep 30, 2026

Ruff plans and prices, checked September 2026
Plan	Price	Details
Free	$0	100% free and open source MIT license 10-100x faster than alternatives +3 more Show less 800+ built-in rules Replaces Flake8, Black, isort Written in Rust

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Is Ruff worth the price?

Great value

Ruff's pricing is exceptionally generous, being entirely free and open source.

This makes it an incredibly fair and accessible option for any Python developer or team. It's best for anyone looking for a high-performance linter without any financial commitment.

Full Ruff pricing: every plan, hidden costs and alternatives

Reviews

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4.6/5

Across 5,562 verified user reviews on G2

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

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Ruff FAQ

How does Ruff improve Python code quality?

Ruff lints Python code with dramatic speed, helping developers quickly identify and fix issues. This performance improvement allows for more frequent and efficient code quality checks within development workflows.

Which teams benefit most from using Ruff?

Teams working on Python projects that require faster linting will find Ruff particularly beneficial. It helps improve performance in development and testing workflows, making it suitable for projects prioritizing speed and efficiency in code review.

How is Ruff's performance compared to other linters?

Ruff is a fast Python linter, powered by Rust, which reimagines Python tools for performance. This Rust-based architecture provides good performance for linting tasks, often outperforming traditional Python-based linters.

What kind of trade-offs should users consider when adopting Ruff?

As a newer and still maturing tool, Ruff may not yet include all possible linting rules. Users should also be aware that adopting Ruff might involve configuration changes and a learning curve due to its distinct approach.

Does Ruff include a free tier?

Ruff is free to use, meaning there is no paid plan required to access its features. This makes it an accessible option for all Python developers looking for a fast linter.

Can Ruff replace multiple existing Python development tools?

Yes, Ruff is designed to replace multiple existing Python development tools, streamlining the linting process. Its active development and growing compatibility aim to consolidate various functions into a single, high-performance solution.

Source: docs.astral.sh

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