Perplexica is an open-source, AI-powered search engine designed to deliver precise, up-to-date answers by leveraging advanced machine learning techniques like similarity searching and embeddings. It integrates with SearxNG to ensure privacy and real-time information retrieval. Key features include support for local LLMs (e.g., Llama3, Mixtral via Ollama), two search modes (Normal and Copilot), and six focus modes tailored for specific needs like academic research, YouTube, Reddit, and Wolfram Alpha queries. Perplexica offers an API for seamless integration into applications and supports Docker for easy installation. It prioritizes user privacy and provides cited sources for transparency, making it a versatile tool for enhanced web searching.