Blog

From the Fillr team

Practical guides on filling forms with data you control, plus product updates.

QA
test data
form validation
edge cases
boundary testing

How to Test Form Validation With Edge-Case Data (Boundary, Unicode & Malformed Input)

Most form bugs aren't in the ticket. They come from data nobody specified — a name with a ñ in it, a title longer than the layout expects, a date in the wrong format. Here's how to generate that data on purpose, in the form, without writing a script.

12 min readFillr
form filling
test data
QA
regression testing
productivity

How to Stop Filling the Same Form Over and Over (Across Dev, Staging & Prod)

If you test the same signup, checkout, or admin form dozens of times a day across dev, staging, and production, here's how to stop retyping it — with saved presets that load the right setup automatically per environment, and per-field rules you control.

7 min readFillr
localization testing
i18n
test data
QA
internationalization

How to Fill Forms With Localized Test Data in 60+ Languages (Names, Addresses, Phones)

Testing a multilingual app means filling forms with locale-correct names, addresses, and phone numbers — not English data with accents bolted on. Here's how to generate localized test data for any web form, in 60+ languages, without building a spreadsheet per market.

8 min readFillr
form filling
test data
autofill
QA
productivity

How to Autofill Forms With Your Own Data (CSV, Spreadsheets & Repeat Fills)

Browser autofill fills one set of personal details. Here's how to autofill any web form with your own data — from a CSV, a spreadsheet, or a dataset you control — and fill the same form over and over with a different row each time.

8 min readFillr