Installing curl with http3 on MacOS

curl-with-http3-macos.md

Work-in-pogress

Ref: cloudflare/homebrew-cloudflare#21

 # Clean up any old version of curl you may have already tried to install
brew remove -f curl

# Download the curl ruby install script provided by cloudflare
wget https://raw.githubusercontent.com/cloudflare/homebrew-cloudflare/master/curl.rb

# Install curl via that script from the latest git repos
# brew install --HEAD -s curl.rb
brew install --formula --HEAD -s curl.rb

# Tell your cli to use the curl version just installed (if you're using zsh, othwerise you might need `~/.bashrc`)
echo 'export PATH="/usr/local/opt/curl/bin:$PATH"' >> ~/.zshrc

# Reload your config
source ~/.zshrc

# Double check it's using the right curl
which curl # Should output "/usr/local/opt/curl/bin/curl"

# Double check http3
$ curl --version | grep HTTP3
  Features: alt-svc AsynchDNS brotli HTTP2 HTTP3 IDN IPv6 Largefile libz MultiSSL NTLM NTLM_WB SSL UnixSockets zstd

# Try curl on any HTTP/3 enabled sites.
curl --http3 https://blog.cloudflare.com -I

FYI, /opt/homebrew can be replaced with $(brew --prefix)

You could also do

brew install cloudflare/homebrew-cloudflare/curl

Thank you. @Centzilius solution worked

Quick copy/paste install for intel

brew remove -f curl
brew install cloudflare/homebrew-cloudflare/curl
echo 'export PATH="/usr/local/opt/curl/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc

macos m2

brew remove -f curl
brew install cloudflare/homebrew-cloudflare/curl
echo 'export PATH="/opt/homebrew/opt/curl/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc

actually installed here. M3 Pro, MacOS 15.5

/opt/homebrew/Cellar/curl/HEAD-1cdac95/bin

can it automatically update with further brew update?