SupaFill

Fill everything in a snap.

The fastest way to fill forms with realistic fake data. Perfect for developers, QA testers, and anyone who's tired of typing "test@test.com" over and over. 💡 PERFECT FOR • Frontend developers testing forms • QA engineers running test scenarios • Anyone filling repetitive forms 🚀 FEATURES Smart Form Detection • Automatically detects field types (name, email, phone, address, etc.) • Fills text inputs, selects, radio buttons, checkboxes, and textareas • Works with WYSIWYG editors (TipTap, ProseMirror, Lexical, CKEditor, Quill, Draft.js, etc.) • Supports forms inside iframes • Groups related fields by name path — multi-person forms (e.g., booker + guests) each get distinct personas Consistent Personas • First name, last name, email, phone, and address match per person • Different forms or sub-forms on the same page get different personas Multi-Locale Support • 10 locales: English, German, French, Spanish, Italian, Portuguese (Brazil), Japanese, Korean, Chinese (Simplified), Indonesian • Native names and addresses for each locale Flexible Filling Options • Fill all forms on page • Fill single form/modal only (right-click → "Fill this form") • Fill single field (right-click → "Fill this field") • Clear all fields Keyboard Shortcuts • Ctrl+Shift+E / Cmd+Shift+E — Fill all forms • Ctrl+Shift+L / Cmd+Shift+L — Clear all fields Customization • Custom field rules (match by name, id, class, placeholder, or label) • Ignored fields with word-boundary or /regex/ patterns • Default password, locale, and more In-Extension Feedback (new in v1.4.0) • Send bug reports or feature requests directly from the popup • No login required, client-side rate-limited to prevent accidental duplicates 🔒 PRIVACY FIRST • Core form-filling runs 100% locally — all fake data is generated in your browser, never from external APIs • No tracking, no analytics, no ads • No account required — works immediately after install • The optional Feedback form only transmits the text you type plus (if you leave the checkbox on) extension version and browser string. See the full privacy policy for details. ⚡ LIGHTWEIGHT Around 100KB total. No runtime dependencies. Fast form filling, nothing else. 📬 CHANGELOG https://supafill.github.io/changelog/ 🐛 FEEDBACK Use the Feedback button in the popup to send bug reports or feature requests.