Developer tools

Looking for prompt library tools that actually give you prompts, patterns, or prompt starters to copy and paste? These are the best prompt-library websites for developers in 2026, including 21st.dev, PromptDen, AIPRM, PromptHub, PromptHero, Snack Prompt, and PromptBase.

Discover what AI agent skills are, how they work, and the top 14 must-know skills for developers - including Grill Me, Caveman, TDD, and Graphify. Learn how to install and use skills in Claude Code, Cursor, Codex CLI, and other AI coding agents.

Discover the top 10 Ngrok alternatives in 2026. Compare Pinggy, Cloudflare Tunnel, Tailscale, Zrok, Localtunnel, LocalXpose and more on features, AI agent support, ease of use, and prices.