Source: https://seerepo.com/compare/astral-sh/ruff/vs/zed-industries/zed
Markdown source: https://seerepo.com/compare/astral-sh/ruff/vs/zed-industries/zed.md
Description: ruff and zed share 6 technologies: console, markdown, schemars, tracing, log, and tracing-subscriber. Both are written in Rust.

# ruff vs zed

ruff and zed share 6 technologies: console, markdown, 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.
- [zed-industries/zed](https://seerepo.com/r/zed-industries/zed): Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

## What they share and what sets them apart

- In common: console, markdown, schemars, tracing, log, tracing-subscriber
- Only in ruff: Tailwind CSS, anstyle, indicatif, csv, zip, jinja2, console_log, fern, tracing-log
- Only in zed: axum, tower, aws-sdk-s3, lru, Postgres, sqlx, AWS S3, GitHub, gpui, gpui_tokio, smol, objc2-foundation, Tokio, objc2-app-kit, tiny_http, core-services, swash, gpui_platform, accesskit, wgpu, objc2-quartz-core, objc2-ui-kit, x11rb, core-graphics, wayland-client, taffy, xkbcommon, cosmic-text, dialoguer, jsonwebtoken, rpassword, image, quick-xml, pulldown-cmark, html5ever, linkify, handlebars, plist, resvg, ttf-parser, jsonschema, env_logger

## Side by side

| | ruff | zed |
|---|---|---|
| Size | 988,162 lines written, 2,832 code files | 1,835,785 lines written, 1,779 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 Claude Code, Amp, Factory, GitHub Copilot, Codex, Cursor, and Gemini CLI |
| Activity | Last push November 5, 2026, 17,985 commits, 50,458 stars | Last push November 4, 2026, 37,547 commits, 92,679 stars |
| Tests | 2,138 test files. 3.8% of its code files have a test that imports them | 140 test files. 18.1% 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 zed?

zed, with 1,835,785 lines written; ruff has 988,162.

The proof: [zed-industries/zed's code at commit e21ff1b](https://github.com/zed-industries/zed/tree/e21ff1b368b074586e4dae0d9bbf15d5dd8a1476)

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

zed, with 92,679 stars; ruff has 50,458.

The proof: [zed-industries/zed on GitHub](https://github.com/zed-industries/zed)

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

ruff, with 2,138 test files; zed has 140.

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 zed?

ruff: its last push was on November 5, 2026, and zed's on November 4, 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 zed?

zed: an AI signed 0.5% of its commits, with Claude Code, Amp, Factory, GitHub Copilot, Codex, Cursor, and Gemini CLI; in ruff, 0.4%.

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

## Sources

- astral-sh/ruff: Read on November 5, 2026, at commit d017c82 (https://github.com/astral-sh/ruff/tree/d017c82cf34810209d5bb402aa0118f4ee2e7a45)
- zed-industries/zed: Read on November 4, 2026, at commit e21ff1b (https://github.com/zed-industries/zed/tree/e21ff1b368b074586e4dae0d9bbf15d5dd8a1476)

## 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.