install

Additional install commands

macOS

Homebrewverified · 100%

brew install templ

local Homebrew formula metadata

Linux

Alpine Linux apkverified · 92%

sudo apk add templ

Alpine Linux edge package indexes · templ · source: dl-cdn.alpinelinux.org

Nixverified · 92%

nix profile install nixpkgs#templ

nixpkgs package indexes · pkgs/by-name/te/templ/package.nix · source: api.github.com

overview

Package summary

Language for writing HTML user interfaces in Go

Project links

Commands and aliases

templ

history

Project history and usage

templ is a Go-focused HTML component language and code generator. Its documentation describes it as a way to build HTML with Go by creating components that render fragments of HTML and compose them into screens, pages, documents, or apps.

Project history

The public repository was created in April 2021, and early GitHub releases appeared in May 2021. The README positions the project as an HTML templating language for Go with strong developer tooling, including generated Go code and editor/LSP support.

Adoption history

templ's adoption grew with the renewed interest in server-rendered Go web applications, htmx-style partial updates, and type-checked component composition. Package-manager coverage in Homebrew, Nix, and Alpine reflects its use as a build-time CLI installed alongside Go toolchains.

How it is used

The official docs say most users run `templ generate` to generate Go code from `*.templ` files. The CLI also provides formatting, an LSP server, environment information, and version reporting; watch/proxy modes support live reload during web development.

Why package nerds care

For package nerds, templ is notable because the package is primarily a generator executable: projects often commit generated `*_templ.go` files or wire generation into CI, so the tool affects reproducible builds, editor setup, and source packaging.

Timeline

2021: GitHub repository created.
2021: Early v0.0.x releases published.
2023: Official docs include GopherCon UK 2023 material for templ's language-server tooling.

Related projects

templ is commonly used with Go's `net/http` package and web frameworks such as Chi, Echo, Gin, and Fiber.
The docs explicitly discuss htmx integration and React interoperability for cases where server-rendered Go components need client-side interactivity.

Sources

security posture

No protected-tool coverage found yet

No matching local secret-handling manifest was found for templ. Nucleus package metadata is still published here so future coverage has a stable package URL.

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`templ`	cli	global executable

freshness

Version and 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.

page generated2026-07-08

manager version0.3.1020

manager updated2026-05-10

local dataok

upstreamcurrent

latest detectedv0.3.1020

https://github.com/a-h/templ

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:templ
Version	0.3.1020
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/templ
Homepage	https://templ.guide
Repository	https://github.com/a-h/templ
Upstream docs	https://templ.guide/
License	MIT
Source archive	https://github.com/a-h/templ/archive/refs/tags/v0.3.1020.tar.gz
Last updated	2026-05-10T09:31:27Z
Pulse	updated
Build dependencies	go
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	templ
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

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

templ

nix profile install nixpkgs#templ

normalized package name match
Matched by: Templ

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

apk95%

templ 0.3.960-r6

Language for writing HTML user interface in Go

https://templ.guide/

sudo apk add templ

License: MIT
Architecture: x86_64
Source Package: templ
1 dependencies
1 provides
normalized package name match
Matched by: Templ

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

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/templ.yml

Used sources

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

Install templ with Homebrew, apk, Nix