Stop filling forms
by hand
One click fills every field with realistic, context-aware data. Save hours every week.
Add to Chrome — Free
Add to Firefox — FreeFocus on building, not filling forms
Whether you're developing, testing, or demoing — FillKit gets the tedious part out of your way.
Save Hours Every Week
No more typing fake names, emails, and addresses into every form. One click and every field is filled with realistic data.
Work Internationally
Generate data in 50+ locales with locale-appropriate names, addresses, phone numbers, and date formats.
Test Edge Cases Instantly
Switch between valid data, invalid data, boundary values, and special characters to test how your forms handle the unexpected.
Catch Validation Bugs
Discover broken validation rules, missing error messages, and formatting issues before your users do.
Zero Configuration
FillKit automatically detects what each field expects — names, emails, phones, dates, credit cards — no setup required.
Built for Teams
Everyone on your team gets consistent, realistic test data. No more "test123" or "asdf" polluting your staging environments.
Up and running in seconds
No configuration, no schema files, no manual mapping. FillKit just works.
Install the Extension
Add FillKit to Chrome or Firefox in one click. No account needed, no sign-up forms.
Click to Fill
Open any page with a form, click the FillKit button, and watch every field fill with realistic data instantly.
Customize If You Want
Choose your language, switch between valid and invalid data, or pin specific values — it's your call.
Get FillKit for Your Browser
Install the free extension and start filling forms with one click. Works on any website, no account required.
Also available as an npm package for developers.
Something bigger is coming
We're building team features, shared configurations, and a managed API so your whole team can generate realistic test data together. Join the waitlist to get early access.