# Install certigo with Homebrew, apk, MacPorts, Nix, scoop

Utility to examine and validate certificates in a variety of formats. Version 1.18.0 via Homebrew; verified from local package data. Also installable with nix: nix profile install nixpkgs#certigo.

## Install

```sh
sudo av install brew:certigo
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install certigo
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install certigo
```

  Evidence: MacPorts ports tree: sysutils/certigo/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- apk (92%):

```sh
sudo apk add certigo
```

  Evidence: Alpine Linux edge package indexes: certigo from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz

- Nix (92%):

```sh
nix profile install nixpkgs#certigo
```

  Evidence: nixpkgs package indexes: pkgs/by-name/ce/certigo/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

### Windows

- Scoop (92%):

```sh
scoop install main/certigo
```

  Evidence: Scoop official bucket manifest trees: bucket/certigo.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1

## Package facts

- **Package key:** brew:certigo
- **Package manager:** Homebrew
- **Version:** 1.18.0
- **Source summary:** Utility to examine and validate certificates in a variety of formats
- **Homepage:** <https://github.com/square/certigo>
- **Repository:** <https://github.com/square/certigo>
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- certigo (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 1.18.0
## Project history and usage

certigo is Square's certificate inspection and validation CLI. Its README positions it as a debugging tool for SSL/TLS issues, with support for common certificate and keystore formats, remote TLS connections, StartTLS protocols, validation, linting, and JSON output.

### Project history

The public repository was created in 2016 under square/certigo and has continued to receive upstream releases, including v1.18.0 in 2026. The project is written in Go and documents Go module-based development.

### Adoption history

certigo moved beyond a GitHub-only utility into regular package-manager channels. The supplied package facts list APK, Homebrew, MacPorts, Nix, and Scoop, and the README itself documents Homebrew installation for macOS.

### How it is used

certigo is commonly used to dump certificate files and keystores, connect to servers to inspect and verify TLS chains, and verify certificate chains against expected names. Its JSON output makes it scriptable with tools such as jq.

### Why package nerds care

Package nerds care about certigo because it packages a practical slice of TLS troubleshooting into one portable CLI. It handles formats and protocols that otherwise push users toward several different OpenSSL, keytool, and ad hoc shell invocations.

### Timeline

- 2016: Public GitHub repository created.
- 2022: v1.16.0 released.
- 2025: v1.17.x releases published.
- 2026: v1.18.0 released.

### Related projects

- The README examples pair certigo JSON output with jq, and its feature set overlaps with OpenSSL and Java keystore inspection workflows.

### Sources

- <https://api.github.com/repos/square/certigo>
- <https://github.com/square/certigo>
- <https://github.com/square/certigo#readme>
- <https://formulae.brew.sh/api/formula/certigo.json>


## Security Notes

narrow executable package without higher-risk signals.

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

## Other Package-Manager Records

- Nix - certigo: normalized package name match | nixpkgs package indexes: pkgs/by-name/ce/certigo/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - certigo - 1.16.0-r34: normalized package name match | Alpine Linux edge package indexes: certigo from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz | Utility to examine and validate certificates in a variety of formats | https://github.com/square/certigo
- MacPorts - certigo: normalized package name match | MacPorts ports tree: sysutils/certigo/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
- Scoop - main/certigo: normalized package name match | Scoop official bucket manifest trees: bucket/certigo.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1


## Combined YAML source

View the package source record on GitHub. [combined/certigo.yml](https://github.com/mxcl/pkgdb/blob/main/combined/certigo.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph