Chrome Extension That Fills Forms with AI
Right-click any form, AI fills it intelligently using your saved profile.
Build a Chrome extension called "AI Form Filler" that fills any web form using AI and a saved user profile. The extension should: (1) provide an options page where the user enters their profile information (name, email, phone, address, employment history, education, skills, links — like a resume), (2) add a context menu item "Fill this form with AI" that appears on form pages, (3) when triggered, the extension scans all visible form fields, sends the field labels to GPT-4 along with the user's profile, and asks the model to map profile data to fields, (4) auto-fill the matched fields with the AI's responses, (5) leave a small "Edit" button next to filled fields so the user can review and adjust. Permissions: contextMenus, storage, activeTab. Host permissions: <all_urls>, https://api.openai.com/*. Manifest V3.
What this extension does
Fills any web form using AI and a stored user profile. Right-click on a form page, click "Fill this form with AI," and the extension intelligently maps profile data to form fields. Job applications, signups, surveys all become one-click.
How it works
A content script reads form field labels and types from the DOM. The service worker sends the labels to GPT-4 along with the user's profile JSON, asking for a label-to-value mapping. The mapping is applied to the form via DOM manipulation, with edit buttons added for review.
Permissions used: contextMenus, storage, activeTab
Host permissions: <all_urls>, https://api.openai.com/*
Who builds this
For job seekers (filling out hundreds of applications), researchers (form-based surveys), repeat users of similar SaaS signups, and anyone tired of typing the same information into different forms.
How to build it in 3 minutes
- Sign in to PlugThis and open the chat input.
- Copy the prompt above and paste it into the chat.
- PlugThis generates the full Manifest V3 extension in 60-90 seconds.
- Download the zip, extract it, and load it via
chrome://extensionsdeveloper mode.
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