From the Fillr team
Practical guides on filling forms with data you control, plus product updates.
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.
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.
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.
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.