Stop filling test forms by hand
FillMatic detects every field on a form and fills it with realistic data in milliseconds. Built for developers who test forms every single day.
Everything you need to test forms fast
FillMatic goes beyond random text. It understands what each field expects and fills it correctly.
Smart Field Detection
Detects field purpose from autocomplete attributes, name, ID, placeholder, and label text — fills the right data every time.
Realistic Fake Data
Generates proper names, emails, phone numbers, addresses, and more. Data looks real enough to pass validation without touching production.
Natural Typing Simulation
Simulates human typing at a configurable speed, firing focus, input, change, and blur events so React, Vue, and Angular forms respond correctly.
Site-Specific Rules
Built-in rules for Stripe, Lemon Squeezy, and Paddle automatically fill valid test card numbers — no memorising test credentials.
One Keyboard Shortcut
Trigger a full form fill without lifting your hands from the keyboard. Works on any form, on any site.
Fully Customisable
Control typing speed, email provider (Mailinator, YOPmail, mailsac), ignored fields, shared password, and always-checked checkboxes.
From install to filled in 60 seconds
Install the extension
Add FillMatic from the Chrome Web Store in one click. No account required.
Open any web form
Navigate to a registration page, checkout form, or any form you need to test.
Fill with one click
Click the FillMatic icon or press the keyboard shortcut. Every field fills instantly.
Share your feedback
Got a feature idea or something not working? Let me know.