FillApp is an AI agent that automates form filling and data entry across web and PDF forms. It runs inside the user's browser session, using saved data or custom instructions without sharing credentials. The tool offers three modes: Fill Mode for instant form completion with reusable snippets, Agent Mode for planning and executing multi-step workflows across tabs, and Assist Mode for summarizing pages, PDFs, and images and answering questions about content. Key features include reusable data snippets, visible on-screen execution with pause/resume, cross-tab task execution, PDF and image analysis, and confirmation prompts for sensitive actions. FillApp integrates with platforms like Google Forms, Microsoft Forms, Salesforce, HubSpot, Jotform, Airtable, Workday, Greenhouse, Atlassian, and ServiceNow. It is designed for users who regularly fill forms or perform repetitive browser tasks, such as recruiters, sales reps, real estate agents, and logistics coordinators.