macOS
Homebrewverified · 100%
brew install h2clocal Homebrew formula metadata
brew / rank 17873
Install h2c with Homebrew
Headers 2 curl. Version 1.0 via Homebrew; verified from local package data.
install
Additional install commands
overview
Package summary
Headers 2 curl
Project links
Commands and aliases
- h2c
history
Project history and usage
h2c is a small curl-adjacent utility whose name means headers to curl. It reads an HTTP request, including headers and body, and emits an equivalent curl command line.
Project history
The official repository was created under the curl GitHub organization in August 2017. Its README defines the project narrowly: given a set of HTTP request headers, h2c outputs the curl command line needed to generate that request.
Adoption history
Adoption is intentionally modest and developer-tool focused. The project has an official curl.se web surface plus a Homebrew formula, making it easy for curl users to install when they need to translate captured HTTP requests into repeatable CLI invocations.
How it is used
The README examples cover HTTP/1.1 and HTTP/2 requests, PUT bodies, multipart form uploads, cookies, user agents, and Basic authentication. The tool is useful when moving from a raw request captured in logs, browser tools, or documentation into a shell-friendly curl command.
Why package nerds care
h2c is package-nerd smallness in pure form: a single-purpose converter maintained near curl, valuable because it removes quoting and flag-selection friction without becoming a general HTTP client.
Timeline
- 2017: Repository created under the curl organization.
- 2017: README documented conversion of raw HTTP requests into curl commands.
- 2022: Repository metadata showed continued maintenance activity through mid-2022.
Related projects
- h2c is directly related to curl and to workflows that capture raw HTTP requests from browsers, proxies, examples, or tests and replay them from the command line.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew bottle metadata was recorded.
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 |
|---|---|---|---|
h2c | executable | indexed executable | Discovered from the local executable index. |
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 generated2026-08-03
manager version1.0
manager updated
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:h2c |
|---|---|
| Version | 1.0 |
| Package manager | Homebrew |
| Homepage | https://curl.se/h2c/ |
| Repository | https://github.com/curl/h2c |
| Bottle | not recorded |
| Service | none declared |
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.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- pkg.so package database
- pkgdb category and tag curation