brandonyoungdev/tldx: Domain Availability Research Tool

tldx helps you brainstorm available domain names fast.

tldx openai -p get,use -s ly,hub -t com,io,ai --only-available
✔️ getopenaily.com is available
✔️ useopenaihub.io is available

• 🔍 Smart keyword-based domain permutations (prefixes, suffixes, TLDs)
• 🚀 Fast and concurrent WHOIS availability checks
• 📤 Streams results as they’re found
• 📏 Optional filtering by domain length
• 🧠 Great for technical founders, indie hackers, and naming brainstorms

Usage:
  tldx [keywords] [flags]
  tldx [command]

Available Commands:
  completion  Generate the autocompletion script for the specified shell
  help        Help about any command
  version     Print the version

Flags:
  -h, --help                    help for tldx
  -m, --max-domain-length int   Maximum length of domain name (default 64)
  -a, --only-available          Show only available domains
  -p, --prefixes strings        Prefixes to add (e.g. get,my,use)
      --show-stats              Show statistics
  -s, --suffixes strings        Suffixes to add (e.g. ify,ly)
  -t, --tlds strings            TLDs to check (e.g. com,io,ai)
  -v, --verbose                 Show verbose output

❌ google.com is not available

❌ google.com is not available

  ❌ reddit.com is not available
  ❌ google.com is not available
  ❌ youtube.com is not available

This permutates the keywords with the specified prefixes, suffixes, and TLDs, checking for availability:

  ✔️  mygooglely.com is available
  ✔️  getgooglely.ai is available
  ❌ mygoogle.ai is not available
  ...

  ✔️  getgooglely.ai is available
  ✔️  getreddithub.com is available
  ✔️  getreddit.ai is available
  ✔️  googlely.ai is available
  ✔️  getredditly.com is available
  ✔️  facebookly.io is available
  ...

brew install brandonyoungdev/tldx/tldx

or

brew tap brandonyoungdev/tldx
brew install tldx

Visit the Releases page.

Download the archive for your OS and architecture:

Extract the binary and move it to a directory in your $PATH:

# Example for Linux/macOS
tar -xzf tldx_version>_os>_arch>.tar.gz
mv tldx /usr/local/bin/

go install github.com/brandonyoungdev/tldx@latest

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