H2O LLM Studio is a framework and no-code GUI for fine-tuning large language models. It lets users fine-tune LLMs without coding experience. Users can fine-tune any LLM with many hyperparameters. It supports techniques like LoRA and 8-bit model training to reduce memory use. Advanced metrics help evaluate model performance. Users can track and compare performance visually, including with Neptune integration. The GUI enables chatting with models for instant feedback. Models can be easily exported and shared on Hugging Face Hub.