Zed Improved. Aiming to improve upon Zed and make a truly delightful code editor. https://zed.dev
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Ben Brandt 26a8cac0d8
extension_host: Turn on parallel compilation (#30942)
Precursor to other optimizations, but this already gets us a big
improvement.

Wasm compilation can easily be parallelized, and with all of the cores
on my M4 Max this already gets us an 86% improvement, bringing loading
an extension down to <9ms.

Not all setups will see this much improvement, but it will use the cores
available (it just uses rayon under the hood like we do elsewhere).
Since we load extensions in sequence, this should have a nice impact for
users with a lot of extensions.

#### Before

```
Benchmarking load: Warming up for 3.0000 s
Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 6.5s, or reduce sample count to 70.
load                    time:   [64.859 ms 64.935 ms 65.027 ms]
Found 8 outliers among 100 measurements (8.00%)
  2 (2.00%) low mild
  3 (3.00%) high mild
  3 (3.00%) high severe
```

#### After

```
load                    time:   [8.8685 ms 8.9012 ms 8.9344 ms]
                        change: [-86.347% -86.292% -86.237%] (p = 0.00 < 0.05)
                        Performance has improved.
Found 2 outliers among 100 measurements (2.00%)
  2 (2.00%) high mild
```

Release Notes:

- N/A
2025-05-19 18:06:33 +02:00
.cargo build: Remove -all_load linker argument on macOS (#30656) 2025-05-17 07:20:23 +02:00
.cloudflare docs: Document context servers (#21170) 2024-11-25 11:05:14 -05:00
.config workspace-hack: remove openssl from remote_server (#27990) 2025-04-03 00:49:07 +00:00
.github Fix command casing in issue templates (#30761) 2025-05-15 12:15:27 +00:00
.zed debugger: Fix inline values panic when selecting stack frames (#30821) 2025-05-16 15:42:09 +02:00
assets zed: Fix no way to open local folder from remote window (#30954) 2025-05-19 21:26:30 +05:30
crates extension_host: Turn on parallel compilation (#30942) 2025-05-19 18:06:33 +02:00
docs docs: Document how to load extension grammars from the local FS during development (#30817) 2025-05-19 11:46:09 -04:00
extensions Run additional checks from script/clippy if local (#29768) 2025-05-02 01:26:12 +00:00
legal Legal Terms: May 6th 2025 update (#30151) 2025-05-07 17:14:02 +00:00
nix nix: Add libX11 dependency for X11 support (#28938) 2025-04-17 12:58:45 -07:00
script Legal Terms: May 6th 2025 update (#30151) 2025-05-07 17:14:02 +00:00
tooling extension_host: Turn on parallel compilation (#30942) 2025-05-19 18:06:33 +02:00
.clinerules Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
.cursorrules Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
.git-blame-ignore-revs Add PR 15352 to .git-blame-ignore-revs (#30870) 2025-05-17 11:35:58 +00:00
.gitattributes Prevent GitHub from displaying comments within JSON files as errors (#7043) 2024-01-29 23:11:25 -05:00
.gitignore Update nixpkgs, add direnv to gitignore (#30292) 2025-05-13 01:45:22 -07:00
.mailmap Update .mailmap (#30874) 2025-05-17 12:34:42 +00:00
.prettierrc ci: Add check for formatting default.json (#30034) 2025-05-06 18:55:26 +00:00
.rules Add missing "no" in .rules (#30748) 2025-05-17 06:31:56 +00:00
.windsurfrules Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
Cargo.lock extension_host: Turn on parallel compilation (#30942) 2025-05-19 18:06:33 +02:00
Cargo.toml extension_host: Turn on parallel compilation (#30942) 2025-05-19 18:06:33 +02:00
CLAUDE.md Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
clippy.toml Restructure agent context (#29233) 2025-04-24 21:29:33 +00:00
CODE_OF_CONDUCT.md Remove community content from docs and point to zed.dev (#19895) 2024-10-29 09:44:58 -04:00
compose.yml Add Postgrest to Docker Compose (#16498) 2024-08-19 20:50:45 -04:00
CONTRIBUTING.md Allow icon themes to provide their own file associations (#24926) 2025-02-15 00:35:13 +00:00
Cross.toml Add remote server cross compilation (#19136) 2024-10-12 23:23:56 -07:00
debug.plist WIP 2023-12-14 09:25:14 -07:00
default.nix Fix nix build (#26270) 2025-03-10 01:06:11 -07:00
docker-compose.sql collab: Setup database for LLM service (#15882) 2024-08-06 17:18:08 -04:00
Dockerfile-collab chore: Bump Rust to 1.87 (#30739) 2025-05-15 22:28:52 +00:00
Dockerfile-collab.dockerignore ci: Move collab to Dockerfile-collab (#18515) 2024-09-30 16:14:26 -04:00
Dockerfile-cross Add remote server cross compilation (#19136) 2024-10-12 23:23:56 -07:00
Dockerfile-cross.dockerignore Add remote server cross compilation (#19136) 2024-10-12 23:23:56 -07:00
Dockerfile-distros Support More Linux (#18480) 2024-09-30 17:46:21 -04:00
Dockerfile-distros.dockerignore Support More Linux (#18480) 2024-09-30 17:46:21 -04:00
flake.lock build: Remove -all_load linker argument on macOS (#30656) 2025-05-17 07:20:23 +02:00
flake.nix Update nixpkgs, add direnv to gitignore (#30292) 2025-05-13 01:45:22 -07:00
LICENSE-AGPL Update license year (#24191) 2025-02-04 09:02:59 -05:00
LICENSE-APACHE Update license year (#24191) 2025-02-04 09:02:59 -05:00
LICENSE-GPL Licenses: change license fields in Cargo.toml to AGPL-3.0-or-later. (#5535) 2024-01-27 13:51:16 +01:00
livekit.yaml Add LiveKit server to Docker Compose (#7907) 2024-02-16 10:49:48 -05:00
Procfile Refactor: Restructure collab main function to prepare for new subcommand: serve llm (#15824) 2024-08-05 12:07:38 -07:00
Procfile.postgrest Fix llm queries (#16006) 2024-08-08 17:21:38 -07:00
README.md Remove Repology badge from README (#30857) 2025-05-17 07:01:46 +00:00
renovate.json renovate: Require dependency dashboard approval for updates (#29065) 2025-04-18 18:44:30 +00:00
rust-toolchain.toml chore: Bump Rust to 1.87 (#30739) 2025-05-15 22:28:52 +00:00
shell.nix Fix nix build (#26270) 2025-03-10 01:06:11 -07:00
typos.toml editor: Handle more completion sort cases (#30690) 2025-05-14 18:49:39 +05:30

Zed

CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


Installation

On macOS and Linux you can download Zed directly or install Zed via your local package manager.

Other platforms are not yet available:

Developing Zed

Contributing

See CONTRIBUTING.md for ways you can contribute to Zed.

Also... we're hiring! Check out our jobs page for open roles.

Licensing

License information for third party dependencies must be correctly provided for CI to pass.

We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:

  • Is it showing a no license specified error for a crate you've created? If so, add publish = false under [package] in your crate's Cargo.toml.
  • Is the error failed to satisfy license requirements for a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to the accepted array in script/licenses/zed-licenses.toml.
  • Is cargo-about unable to find the license for a dependency? If so, add a clarification field at the end of script/licenses/zed-licenses.toml, as specified in the cargo-about book.