SupaFill

Hey Product Hunt! 👋

I'm excited to launch SupaFill - a smarter form filler for developers and testers.

🎯 The Problem
I used FakeFiller and other tools, but they filled forms with random, inconsistent data. You'd get "John" as first name, "Smith" as last name, but "alice@example.com" as email. It looked fake and broke testing scenarios that needed realistic data.

✨ The Key Difference: Consistent Personas
SupaFill generates a complete persona per form:
- First name: Sandrine
- Last name: Thomas
- Email: sandrine.thomas10@yopmail.com
- Username: sandrinethomas534

Everything matches! This makes your test data look realistic and helps catch bugs that only appear with proper data relationships.

🚀 Other Features
- Smart field detection (name, email, phone, address, etc.)
- Works with React, Vue, Angular, WYSIWYG editors
- 10 locales with native names (Japanese names for Japanese forms!)
- Custom field rules (set "password" to always be "test123")
- Keyboard shortcuts (Ctrl+Shift+E)
- 100% offline - no tracking, no accounts

🎨 Why I Built This
After typing "test@test.com" thousands of times and dealing with inconsistent random data from other tools, I wanted something that:
1. Generated realistic, consistent data
2. Worked with modern frameworks
3. Respected privacy (100% local)
4. Had a personality (hence the NeoBrutalism design)

💡 Perfect For
- Frontend developers testing user flows
- QA engineers who need realistic test scenarios
- Anyone tired of "asdfasdf" in their forms

🔮 Roadmap
- More locales (planning 20+ total)
- Team sharing for custom field rules
- AI-powered field detection improvements

Available now for Chrome and Firefox!
- Chrome Extension: https://chromewebstore.google.co...
- Firefox Addons: https://addons.mozilla.org/en-US...

What's your biggest pain point with form testing? Would love to hear your thoughts! 🤔