Smart Form Filler

Fill the current visible form with realistic, deterministic test data—without submitting or transmitting anything.

Smart Form Filler helps developers, QA engineers, and testers populate web forms quickly with predictable test data. Click Fill Form or use the keyboard shortcut. The extension selects the most relevant visible form, understands what each field expects, and fills supported controls with realistic values. It never submits the form, and it never sends form contents to a server. Key features: • Context-aware field detection using labels, names, placeholders, autocomplete, ARIA attributes, input types, and validation rules • Deterministic names, emails, phone numbers, addresses, dates, numbers, URLs, and other test values • Native support for text fields, textareas, checkboxes, radio groups, selects, multi-selects, contenteditable fields, and accessible custom comboboxes • React-compatible value updates with the events controlled components expect • Multi-pass filling for forms that reveal fields dynamically • Native validation awareness for required, pattern, length, range, and step constraints • Existing values are preserved by default, with an optional overwrite setting • Sensitive controls—including CAPTCHA, payment, OTP, security-code, and file-upload fields—are always skipped Privacy first: Smart Form Filler runs entirely in your browser. It has no backend, analytics, advertising, or remote code. Form contents are not collected, stored, or transmitted. The extension is designed for testing and productivity. Always review generated values before manually submitting a form.