SupaFill: free extension to auto-fill forms with realistic fake data

Web Testing
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1

hey all,

got tired of typing test@test.com and john doe into the same forms while doing manual testing, so i built a little browser extension called SupaFill - https://supafill.github.io/

sharing in case it helps you too. free, no account, runs fully offline

what it does: one click fills every field on a page with realistic fake data (names, emails, phones, addresses, dropdowns, radios, checkboxes).

why it’s handy for qa:

  • consistent personas, so first name + last name + email all match the same fake person
  • multi person forms (like booker + guests) get a different persona each
  • 10 locales for localization testing
  • custom rules + templates like user+{{random4}}@company.comcompany.com
  • ignore fields like captcha/csrf
  • works in iframes and with react/vue/angular inputs

how to use:

  • toolbar icon, or ctrl+shift+e to fill / ctrl+shift+l to clear
  • right click to fill a single field or just one form

install:

  • chrome/edge/brave:
  • firefox:

everything is generated locally, no tracking or analytics

would love feedback on what flows you’d want supported. thanks!

2

seems promising

3

custom rules is something missing in mostly extensions. that will be a great feature

4

thanks @cdare
give it a try and let me know what you think

5

yeah exactly, that was the main itch for me too

you can match a field by name/id/class/placeholder/label and either pick a generator or set a custom value, even templates like user+{{random4}}@company.com

would love to hear what kinds of rules you’d want

6

looks good

7

thanks @dineshh give it a try :grin:

8

have you tried this extension, guys @cdare @frodriguez1 @dineshh ? :grin:

9

not yet.. will squeeze in some time and let you know @depapp

10

thanks @dineshh