Fillr – AI Test Data Generator & Form Filler

Fill any form with realistic, matching fake data in one keystroke. Test data generator for QA engineers and developers.

Stop typing test@test.com. Press Alt+Shift+F and every field fills with realistic test data: names, emails that match them, valid phone numbers, addresses and passwords that pass validation. Built for QA engineers and developers testing sign-up, checkout and onboarding flows on localhost, staging and production. You know the routine: open a form, type John, tab, Doe, tab, test@test.com, tab... for every form, every test run, every demo. And the data is always garbage, so your app looks broken in screenshots and demos. Fillr turns that into one shortcut. ━━━━━━━━━━━━━━━━━━━━━━ WHAT MAKES FILLR DIFFERENT ━━━━━━━━━━━━━━━━━━━━━━ Most fake data generators produce random values: "xkqz@test.com", "123 Fake St". Fillr uses AI to generate data that makes sense together. The name, email, company, phone number and address all match, in the right format for the right country. Every time. ━━━━━━━━━━━━━━━━━━━━━━ KEYBOARD SHORTCUTS ━━━━━━━━━━━━━━━━━━━━━━ Alt+Shift+F — AI fill all fields Alt+Shift+R — instant random fill (local, no AI, no limit) Alt+Shift+T — open the quick template picker Alt+Shift+C — clear all filled fields All shortcuts can be changed in Chrome settings. ━━━━━━━━━━━━━━━━━━━━━━ QUICK TEMPLATE PICKER ━━━━━━━━━━━━━━━━━━━━━━ Press Alt+Shift+T on any page and a keyboard picker slides in. Arrow keys to browse, 1–9 to jump to a template, Enter to fill. Your most-used test data is one keypress away. ━━━━━━━━━━━━━━━━━━━━━━ PERSONAS ━━━━━━━━━━━━━━━━━━━━━━ Create a "French B2B Manager" persona once, and every AI fill gives you a consistent French identity: French name, French company, Paris address, .fr email domain. Create as many as you need ("US Student", "UK Enterprise Buyer", "German Freelancer") and switch in one click. Ideal for testing localisation and country-specific validation. ━━━━━━━━━━━━━━━━━━━━━━ TEMPLATES & PROJECTS ━━━━━━━━━━━━━━━━━━━━━━ Fill a form once and save it as a template. Every run after that is instant and identical: no AI call, no variation, no weekly limit. Perfect for repeatable regression tests. Organise templates into projects by domain (e.g. "localhost:3000", "staging.acme.com"). On a matching site, its templates appear automatically in the panel and the quick picker. ━━━━━━━━━━━━━━━━━━━━━━ WHO IT'S FOR ━━━━━━━━━━━━━━━━━━━━━━ → QA engineers running the same form flows 50 times a day → Developers who don't want to break their flow to type fake data → Product, sales and marketing teams who need clean, realistic data for demos and screenshots ━━━━━━━━━━━━━━━━━━━━━━ WORKS EVERYWHERE ━━━━━━━━━━━━━━━━━━━━━━ ✓ React, Vue, Angular and plain HTML forms ✓ Modals and dialogs that appear after page load ✓ Multi-step wizards ✓ Shadow DOM components ✓ Select dropdowns, textareas, contenteditable fields ✓ localhost, staging and production ━━━━━━━━━━━━━━━━━━━━━━ FREE PLAN ━━━━━━━━━━━━━━━━━━━━━━ ✓ 5 AI fills per week ✓ Unlimited random fills (local, always free) ✓ Unlimited template fills (no AI, no limits) ✓ Up to 3 personas ✓ Up to 3 projects, 5 templates per project ━━━━━━━━━━━━━━━━━━━━━━ PRO — $4.99/month or $39/year ━━━━━━━━━━━━━━━━━━━━━━ ✓ Unlimited AI fills ✓ Unlimited personas and templates ✓ Typing animation — types character by character, like a real user ✓ Edge case mode — stress-test your forms with XSS strings, SQL injection, boundary values and unicode ✓ JSON export — download generated data for test fixtures and seed scripts ━━━━━━━━━━━━━━━━━━━━━━ PRIVACY ━━━━━━━━━━━━━━━━━━━━━━ For AI fills, Fillr sends a description of the form (field labels, options and headings), the page title and the page address to our server. It does not send what you've typed into the form. Generated data isn't stored, and passwords are never logged. Random fills run entirely in your browser. Templates and personas you choose to save are stored in your account so they sync across your devices. ━━━━━━━━━━━━━━━━━━━━━━ Fillr: fake test data for any web form, in one shortcut.