Source: https://seerepo.com/compare/LemmyNet/lemmy/vs/zed-industries/zed
Markdown source: https://seerepo.com/compare/LemmyNet/lemmy/vs/zed-industries/zed.md
Description: lemmy and zed share 7 technologies: moka, Postgres, Tokio, jsonwebtoken, tracing, prometheus, and tracing-subscriber. Both are written in Rust.

# lemmy vs zed

lemmy and zed share 7 technologies: moka, Postgres, Tokio, jsonwebtoken, tracing, prometheus, and tracing-subscriber. Both are written in Rust.

- [LemmyNet/lemmy](https://seerepo.com/r/LemmyNet/lemmy): 🐀 A decentralised discussion platform for communities.
- [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: moka, Postgres, Tokio, jsonwebtoken, tracing, prometheus, tracing-subscriber
- Only in lemmy: Actix Web, tokio-postgres, tokio-postgres-rustls, diesel, diesel-async, diesel-derive-newtype, diesel_migrations, bcrypt, totp-rs, html-to-markdown-rs, html2text, infer, lettre, reqwest-tracing, tracing-actix-web
- Only in zed: axum, tower, aws-sdk-s3, db, sqlez, sqlx-postgres, libsqlite3-sys, aws-sdk-kinesis, lru, heed, sqlx, AWS S3, GitHub, gpui, gpui_tokio, gpui_web, node_runtime, smol, objc2-foundation, wasmtime, objc2-app-kit, objc2-core-video, tiny_http, core-services, objc2-core-media, theme, theme_settings, font-kit, core-text, swash, command_palette_hooks, component, copilot_ui, git_ui_core, gpui_platform, menu, notifications, open_path_prompt, picker, picker_preview, platform_title_bar, tasks_ui, terminal, terminal_view, title_bar, ui, ui_input, vim_mode_setting, zed_actions, accesskit, wgpu, objc2-quartz-core, objc2-ui-kit, x11rb, core-graphics, etagere, wayland-client, alacritty_terminal, taffy, xkbcommon, accesskit_unix, objc2-metal, wayland-protocols-plasma, console, cosmic-text, dialoguer, lyon, notify-rust, objc2-user-notifications, wayland-cursor, file_icons, icons, emojis, sea-orm-macros, sqlez_macros, sea-orm, credentials_provider, oauth_callback_server, zed_credentials_provider, rpassword, acp_thread, agent, agent_servers, agent_skills, agent_ui, ai_onboarding, cloud_llm_client, codestral, context_server, copilot_chat, edit_prediction, edit_prediction_context, edit_prediction_types, harbor, language_model, language_model_core, language_models, ollama, open_ai, prompt_store, zeta_prompt, agent-client-protocol, aws-sdk-bedrockruntime, html_to_markdown, markdown, markdown_preview, image, quick-xml, pulldown-cmark, html5ever, tree-sitter-md, usvg, linkify, handlebars, mdbook, plist, resvg, ttf-parser, yaml-rust2, schemars, jsonschema, zlog, ztracing, log, env_logger, simplelog, perf-event, tracing-tracy, tracy-client

## Side by side

| | lemmy | zed |
|---|---|---|
| Size | 82,862 lines written, 516 code files | 1,842,123 lines written, 1,778 code files |
| Who writes it | 0% of its commits signed by AI | 0.5% of its commits signed by AI. With Claude Code, Amp, Factory, GitHub Copilot, Codex, and Cursor |
| Activity | Last push November 6, 2026, 5,140 commits, 14,669 stars | Last push November 9, 2026, 37,581 commits, 94,524 stars |
| Tests | 19 test files. 9.3% 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, lemmy or zed?

zed, with 1,842,123 lines written; lemmy has 82,862.

The proof: [zed-industries/zed's code at commit 22580c6](https://github.com/zed-industries/zed/tree/22580c6e6970de1aebf653a012765025fe8bf0f7)

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

zed, with 94,524 stars; lemmy has 14,669.

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

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

zed, with 140 test files; lemmy has 19.

The proof: [zed-industries/zed's code at commit 22580c6](https://github.com/zed-industries/zed/tree/22580c6e6970de1aebf653a012765025fe8bf0f7)

### Which was updated more recently, lemmy or zed?

zed: its last push was on November 9, 2026, and lemmy's on November 6, 2026.

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

### Which has more commits signed by AI, lemmy or zed?

zed: an AI signed 0.5% of its commits, with Claude Code, Amp, Factory, GitHub Copilot, Codex, and Cursor.

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

## Sources

- LemmyNet/lemmy: Read on November 8, 2026, at commit e831e70 (https://github.com/LemmyNet/lemmy/tree/e831e709a11c399027485b1980f86ed95d9d5855)
- zed-industries/zed: Read on November 9, 2026, at commit 22580c6 (https://github.com/zed-industries/zed/tree/22580c6e6970de1aebf653a012765025fe8bf0f7)

## 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.