Building a Local-Only Chrome Extension That Autofills Job Application Forms

Short summary

A developer built a local-only Chrome extension that autofills job application forms using heuristic field inference, keeping all data in browser storage with no server calls. The post covers Manifest V3 setup, context-gathering from surrounding DOM elements to classify fields, and handling edge cases like split birth-date fields. The approach avoids sending sensitive personal data to third parties, unlike many off-the-shelf autofill tools.

• •Chrome extension autofills job applications with all data stored locally, no server calls
• •Uses heuristic field inference from surrounding DOM context since autocomplete attributes are unreliable
• •Covers MV3 setup, field classification logic, and edge cases like split birth-date fields

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