Woodpecker is a cold email tool that helps B2B companies connect with potential customers and business partners. It allows users to create personalized email sequences that are delivered to the recipient's main inbox. The tool also helps users experiment with their messages to find the best-performing versions and automatically marks how interested prospects are when they reply. Additionally, Woodpecker offers a call scheduling and tracking mobile app for Android and makes outreach across channels easier with LinkedIn manual tasks. The tool aims to save time and allow professionals to focus on the human-to-human part of the process.