# Install kuto with Homebrew

Reverse JS bundler. Version 0.3.6 via Homebrew; verified 2026-06-13.

## Install

```sh
sudo av install brew:kuto
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install kuto
```

  Evidence: local Homebrew formula metadata

## Package facts

- **Package key:** brew:kuto
- **Package manager:** Homebrew
- **Package manager page:** <https://formulae.brew.sh/formula/kuto>
- **Version:** 0.3.6
- **Source summary:** Reverse JS bundler
- **Homepage:** <https://github.com/samthor/kuto>
- **Repository:** <https://github.com/samthor/kuto>
- **Upstream docs:** <https://github.com/samthor/kuto#readme>
- **License:** Apache-2.0
- **Source archive:** <https://registry.npmjs.org/kuto/-/kuto-0.3.6.tgz>
- **Last updated:** 2026-06-13T23:35:01+02:00
- **Generated:** 2026-07-26T07:20:29+00:00

## Executables

- kuto (cli)
- kuto (alias)

## Dependencies

- node

## Install behavior

- Post-install hook: not defined
- Bottle: available on all

## Freshness

- Page generated: 2026-07-26
- Package-manager version: 0.3.6
- Package-manager updated: 2026-06-13
- Local data: ok
- Upstream repository: https://github.com/samthor/kuto
- info: No cached GitHub release or tag data was available.
## Project history and usage

Kuto is a small reverse JavaScript bundler that experiments with reusing code a client has already downloaded, especially for large ESM bundles.

### Project history

Sam Thor published Kuto publicly with a March 2024 explanation of the idea: split a built JavaScript bundle into a main file plus cacheable corpus files, then reuse unchanged corpus code across later builds. The README says the `kuto info` command came first as a way to inspect ES modules for side effects.

### Adoption history

Kuto is a niche web-performance tool rather than a mainstream bundler replacement. Its own documentation frames it as a final pass after another bundler and asks users for real-world results, which matches a young experimental tool.

### How it is used

The CLI is used after bundling: `kuto split` reads a large ESM output file, writes a main part plus static corpus files, and can use previously generated output as the old corpus for later builds.

### Why package nerds care

Kuto is interesting to package and web-build-system nerds because it reverses the usual bundling assumption. Instead of making one fresh optimized artifact per build, it tries to preserve previously shipped code as a reusable cache dictionary.

### Timeline

- March 2024: Maintainer published the reverse-bundler write-up and linked it from the project README.
- Initial design: `kuto info` originated as an ES module side-effect inspection command before the split workflow.

### Related projects

- Kuto is designed to run after conventional JavaScript bundlers, and its README demonstrates a release process that uses esbuild before and after Kuto.

### Sources

- <https://github.com/samthor/kuto>
- <https://samthor.au/2024/kuto/>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** kuto
- **Version Scheme:** 0
- **Revision:** 0
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable


## Related links

- [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family.
- [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata.
- [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata.
- [node](https://www.automicvault.com/pkg/brew/node/) - Runtime dependency declared by Homebrew.
- [esbuild](https://www.automicvault.com/pkg/brew/esbuild/) - Shares av.db curated category or tags: bundler, cli, developer-tools, javascript.
- [ncc](https://www.automicvault.com/pkg/brew/ncc/) - Shares av.db curated category or tags: bundler, cli, developer-tools, javascript.
- [rollup](https://www.automicvault.com/pkg/brew/rollup/) - Shares av.db curated category or tags: bundler, cli, developer-tools, javascript.
- [webpack](https://www.automicvault.com/pkg/brew/webpack/) - Shares av.db curated category or tags: bundler, cli, developer-tools, javascript.
- [addons-linter](https://www.automicvault.com/pkg/brew/addons-linter/) - Shares av.db curated category or tags: cli, developer-tools, javascript.
- [angular-cli](https://www.automicvault.com/pkg/brew/angular-cli/) - Shares av.db curated category or tags: cli, developer-tools, javascript.
- [astgen](https://www.automicvault.com/pkg/brew/astgen/) - Shares av.db curated category or tags: cli, developer-tools, javascript.
- [aube](https://www.automicvault.com/pkg/brew/aube/) - Shares av.db curated category or tags: cli, developer-tools, javascript.
- [pulp](https://www.automicvault.com/pkg/brew/pulp/) - Both packages touch the same language runtime or ecosystem. Shared terms: build, cli, developer, developer-tools, javascript.

## Combined YAML source

View the package source record on GitHub. [combined/kuto.yml](https://github.com/automic-vault/db/blob/main/combined/kuto.yml)


## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- av.db category and tag curation
- package relationship graph
- cross-ecosystem install command graph
