Source: https://seerepo.com/compare/astral-sh/ruff/vs/wasmerio/wasmer
Markdown source: https://seerepo.com/compare/astral-sh/ruff/vs/wasmerio/wasmer.md
Description: ruff and wasmer share 7 technologies: indicatif, console, zip, schemars, tracing, log, and tracing-subscriber. Both are written in Rust.

# ruff vs wasmer

ruff and wasmer share 7 technologies: indicatif, console, zip, schemars, tracing, log, and tracing-subscriber. Both are written in Rust.

- [astral-sh/ruff](https://seerepo.com/r/astral-sh/ruff): An extremely fast Python linter and code formatter, written in Rust.
- [wasmerio/wasmer](https://seerepo.com/r/wasmerio/wasmer): 🚀 Fast and lightweight sandboxes for your apps and AI agents

## What they share and what sets them apart

- In common: indicatif, console, zip, schemars, tracing, log, tracing-subscriber
- Only in ruff: Tailwind CSS, anstyle, csv, jinja2, markdown, console_log, fern, tracing-log
- Only in wasmer: tower, Tokio, dialoguer, comfy-table, console-subscriber

## Side by side

| | ruff | wasmer |
|---|---|---|
| Size | 988,162 lines written, 2,832 code files | 334,322 lines written, 958 code files |
| Who writes it | 0.4% of its commits signed by AI. With Claude Code, Codex, and GitHub Copilot | 0.5% of its commits signed by AI. With Codex, Claude Code, and GitHub Copilot |
| Activity | Last push November 5, 2026, 17,985 commits, 50,458 stars | Last push November 5, 2026, 16,762 commits, 21,221 stars |
| Tests | 2,138 test files. 3.8% of its code files have a test that imports them | 202 test files. 2.9% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, ruff or wasmer?

ruff, with 988,162 lines written; wasmer has 334,322.

The proof: [astral-sh/ruff's code at commit d017c82](https://github.com/astral-sh/ruff/tree/d017c82cf34810209d5bb402aa0118f4ee2e7a45)

### Which has more GitHub stars, ruff or wasmer?

ruff, with 50,458 stars; wasmer has 21,221.

The proof: [astral-sh/ruff on GitHub](https://github.com/astral-sh/ruff)

### Which has more tests, ruff or wasmer?

ruff, with 2,138 test files; wasmer has 202.

The proof: [astral-sh/ruff's code at commit d017c82](https://github.com/astral-sh/ruff/tree/d017c82cf34810209d5bb402aa0118f4ee2e7a45)

### Which was updated more recently, ruff or wasmer?

Both got their last push on November 5, 2026.

The proof: [astral-sh/ruff's commits on GitHub](https://github.com/astral-sh/ruff/commits)

### Which has more commits signed by AI, ruff or wasmer?

wasmer: an AI signed 0.5% of its commits, with Codex, Claude Code, and GitHub Copilot; in ruff, 0.4%.

The proof: [the commits each tool signed in wasmerio/wasmer](https://seerepo.com/r/wasmerio/wasmer/ai)

## Sources

- astral-sh/ruff: Read on November 5, 2026, at commit d017c82 (https://github.com/astral-sh/ruff/tree/d017c82cf34810209d5bb402aa0118f4ee2e7a45)
- wasmerio/wasmer: Read on November 5, 2026, at commit 66ad7a7 (https://github.com/wasmerio/wasmer/tree/66ad7a78ec0cb60700b07987ebcd94e4c6a4d575)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.