Autofill forms with context-aware texts powered by OpenAI GPT.
Users
8
+4 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#218K
#183K among extensions
Version
0.4.1
updated 5 Dec 2025
Users
monthly, 12 months
Latest, 20 Oct 2026:8 usersMove the mouse over the chart for any month
Ratings count
monthly, 12 months
Latest, 20 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Formageddon
π Formageddon - AI-Powered Form Autofill
Tired of manually filling out endless web forms? Let AI do the work for you!
Formageddon is a Chrome extension that uses OpenAI's latest GPT-5.1 and other powerful models to automatically fill web forms with realistic, context-aware data. Perfect for developers, QA testers, and anyone who fills out forms frequently.
β¨ KEY FEATURES
π€ Context-Aware Generation
β’ Analyzes form fields, labels, and surrounding content
β’ Generates appropriate text for each field type
β’ Understands relationships between fields
β‘ Two Autofill Modes
β’ Single Field: Right-click any field β "AutoFill this field"
β’ Whole Form: Right-click anywhere β "Fill entire form"
π― Smart Field Detection
β’ Names, emails, addresses, phone numbers
β’ Dates, URLs, numbers, text areas
β’ Custom validation patterns
β’ Required field detection
π Privacy & Security First
β’ Your API key stored locally (encrypted)
β’ No data sent to our servers
β’ Direct communication with OpenAI
β’ Input sanitization & XSS protection
β’ Rate limiting (20 requests/min)
βοΈ Highly Customizable
β’ Choose your GPT model (GPT-5.1, GPT-5, GPT-4.1, o3, o4-mini, and more)
β’ Adjust creativity (temperature)
β’ Control response length (max tokens)
β’ Ignore or preserve existing input
π‘οΈ Built for Chrome Web Store
β’ Manifest V3 compliant
β’ Content Security Policy enabled
β’ Minimal permissions required
β’ Regular security updates
π HOW IT WORKS
1. Install the extension
2. Add your OpenAI API key (get one at https://platform.openai.com/api-keys)
3. Navigate to any web form
4. Right-click a field or form β Choose autofill option
5. Watch as AI fills it with perfect, contextual data!
π‘ PERFECT FOR
β Developers testing forms
β QA engineers
β Form automation
β Rapid prototyping
β Demo data generation
β Anyone filling repetitive forms
β οΈ IMPORTANT NOTES
β’ Requires your own OpenAI API key (not included)
β’ API usage is billed by OpenAI according to their pricing
β’ Form data is sent to OpenAI for processing
β’ Read our Privacy Policy before use
π LINKS
Privacy Policy: https://metinet-de.github.io/formageddon-docs/
How-To Guide: https://metinet-de.github.io/formageddon-docs/how-to.html
Test Form: https://metinet-de.github.io/formageddon-docs/test.html
Support: info@metinet.de
GitHub Issues: https://github.com/metinet-de/formageddon/issues
π PRIVACY
We take your privacy seriously:
β’ No data collection on our servers
β’ API key stored locally in your browser
β’ Direct communication with OpenAI
β’ No tracking, analytics, or ads
β’ Full transparency
For details, read our Privacy Policy: https://metinet-de.github.io/formageddon-docs/
π SUPPORT
Need help? Contact us:
β’ Email: info@metinet.de
β’ GitHub: https://github.com/metinet-de/formageddon
Made with β€οΈ in Berlin by metinet-de
Growth
Window
Users
Change
Ratings
Rating
7 days
0
+0.0%
0
0.00
30 days
+4
+100.0%
0
0.00
6 months
+6
+300.0%
0
0.00
1 year
+7
+700.0%
0
0.00
Chrome Web Store search rankings
Where Formageddon appears when people search the store, with the 30 day change