tldxFind available domains in seconds with intelligent bulk checking

tldx

tldx is a powerful command-line tool that accelerates domain name brainstorming and availability checking. Built for developers, entrepreneurs, and creators who need to find the perfect domain fast, it combines smart permutations, regex patterns, and concurrent RDAP lookups to deliver instant results.

Product Highlights

• Smart Permutations: Generate thousands of domain variations instantly using prefixes, suffixes, and multiple TLDs
• Regex Pattern Support: Create domain combinations with advanced patterns like all 3-letter or 2-letter combinations
• Real-Time Availability Checks: Fast concurrent RDAP lookups that stream results as they're found
• Flexible Output Formats: Export results as text, JSON, CSV, or grouped by keyword/TLD for easy analysis
• MCP Server Integration: Built-in Model Context Protocol server for seamless AI agent and IDE integration
• TLD Presets: Quick access to curated TLD sets including popular, tech, cheap, and geo-specific options

Use Cases

• Startup Naming: Quickly validate brand name ideas across multiple TLDs and variations before committing
• Domain Portfolio Management: Systematically check availability of pattern-based domains for investment opportunities
• Bulk Domain Auditing: Process large keyword lists from files or stdin for comprehensive availability reports
• AI-Powered Workflows: Integrate domain checking directly into Claude, VS Code, or other MCP-compatible tools
• Creative Projects: Use brace expansion and regex to discover unexpected domain combinations for side projects

Target Audience

tldx is designed for developers, startup founders, domain investors, and digital creators who need efficient, programmable domain research tools. It's ideal for technical users who prefer CLI workflows and want to automate domain discovery without expensive SaaS subscriptions.