macOS
brew install kiesellocal Homebrew formula metadata
brew / rank 15374
JavaScript engine written in Zig. Version 0.3.0 via Homebrew; verified 2026-07-26. Also installable with nix: nix profile install nixpkgs#kiesel.
install
brew install kiesellocal Homebrew formula metadata
sudo apk add kieselAlpine Linux edge package indexes · kiesel · source: dl-cdn.alpinelinux.org
nix profile install nixpkgs#kieselnixpkgs package indexes · pkgs/by-name/ki/kiesel/package.nix · source: api.github.com
overview
JavaScript engine written in Zig
history
Kiesel is an experimental JavaScript engine written in Zig. It provides a custom bytecode virtual machine and runtime, plus a command-line REPL and file interpreter.
Linus Groh began Kiesel as a from-scratch project for learning Zig, with the longer-term aim of following current ECMAScript standards. The official repository was created on Codeberg in July 2023.
The implementation draws stylistic influence from SerenityOS and Ladybird's LibJS, particularly its close-to-spec approach. The project describes itself as early-stage and combines mostly Zig code with selected components for garbage collection, regular expressions, internationalization, and Temporal.
Kiesel publishes versioned releases and main-branch builds, tracks conformance through Test262, and is packaged by Alpine Linux, Homebrew, and Nix according to the supplied package metadata. Official releases 0.2.0 and 0.3.0 were published in 2026.
The `kiesel` executable opens a REPL when run interactively, evaluates JavaScript files, or executes source passed with `--command`. Diagnostic options can print the parsed AST, bytecode, or intermediate representation, while embedding in other projects remains an explicit goal.
Kiesel is of interest as a young ECMAScript implementation built around Zig and a custom bytecode VM rather than an established browser engine. Its Test262 tracking, embeddability goal, and availability in several system package collections make implementation progress easy to follow and test.
security posture
No matching local secret-handling manifest was found for kiesel. Nucleus package metadata is still published here so future coverage has a stable package URL.
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
kiesel | executable | indexed executable | Discovered from the local executable index. |
freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
install metadata
| Package key | brew:kiesel |
|---|---|
| Version | 0.3.0 |
| Package manager | Homebrew |
| Homepage | https://kiesel.dev/ |
| Last updated | 2026-07-26T17:43:16Z |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source database matches
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
kiesel
nix profile install nixpkgs#kieselkiesel 0.3.0-r0
JavaScript engine written in Zig
sudo apk add kieselkiesel-doc 0.3.0-r0
JavaScript engine written in Zig (documentation)
sudo apk add kiesel-docsource trail
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
View the package source record on GitHub.