Recently, a blogger spent three months testing 1000 AI tools and selected the top 10 best free tools. Among them, the Google AI suite can significantly enhance work efficiency; Perplexity AI offers quick free answers to questions; HubSpot Campaign Assistant can generate marketing copy with a single click; ClickDrop.Co is a powerful image processing tool; SaveDay efficiently manages various types of content. These tools are user-friendly and can improve work efficiency, making them highly recommended AI tools. Readers are encouraged to give them a try and become proficient in using these excellent free AI tools in the era of AI.