FillKit

Browser Extension

FillKit ships browser extensions for Chrome (Manifest V3) and Firefox, bringing context-aware form autofill to every website you visit. The extensions share the same core engine as the SDK but run entirely inside the browser — no server calls required for basic usage.

Features

  • 1
    One-click autofill — Click the extension icon or press the keyboard shortcut and every visible form is filled instantly.
  • 2
    Works on any website — No integration needed. The extension detects forms, identifies field types, and generates realistic data on the fly.
  • 3
    Locale & mode switching — Toggle between 50+ locales and switch between valid or invalid fill modes directly from the popup.
  • 4
    No account required — Basic autofill works entirely offline. Sign in with a FillKit token to unlock cloud datasets and team profiles.
Coming Soon
Chrome

Chrome Web Store

Chrome extension built on Manifest V3 with service worker architecture for reliable background processing.

Coming Soon
Firefox

Firefox Add-ons

Firefox extension with the same feature set, built for compatibility with Firefox's WebExtensions API.

How It Works

1

Install

Add the extension from the Chrome Web Store or Firefox Add-ons.

2

Navigate

Go to any website with a form — sign-up pages, checkout flows, surveys.

3

Click

Click the FillKit icon in the toolbar or use the keyboard shortcut.

4

Done

Every detected form field is filled with realistic, context-aware data.