Free tools
Free tools for testing web forms
No signup, no limits, nothing uploaded — everything runs in your browser. Built by the team behind Fillr.
Form validation test case generator
Pick the fields on your form and get the test cases for each — boundary, malformed, special characters — with the value to paste and what should happen. Export CSV, JSON or Markdown.
Open the tool →Test data generator
Build your columns, preview realistic rows, and download CSV, JSON or Excel. Over 100 data types, powered by the same engine that fills forms in the extension.
Open the tool →Fill the form itself, not just a spreadsheet
Fillr saves any web form as a preset with a rule per field, then fills it with generated data or your own rows — one click, no code.
Add Fillr to Chrome