I Built a Firefox Extension That Fills Any Form Instantly — No More Typing Test Data 🚀

Stop wasting time typing the same test inputs over and over again. If you're a frontend dev or QA engineer, you know the pain. You're testing a signup flow for the 30th time today, and you're still manually typing John , Doe , john.doe@test.com , +1 555... into every single field. I got tired of it. So I built FormSpackle . ⚡ What is FormSpackle? FormSpackle is a Firefox extension that fills any form on any website with one click , using realistic, randomized data. It's not just a basic autofill — it actually understands your form. It reads labels, placeholders, field types, and even works with modern UI component libraries. 🛠 What It Can Do One-Click Fill Click the extension icon, hit fill — done. The entire form is populated with realistic data in milliseconds. Smart Field Detection FormSpackle doesn't just blindly fill text boxes. It detects: Input types (text, email, phone, password, URL, etc.) Dropdowns, checkboxes, and radio buttons Date and time pickers Custom components from li